Federal Capture Intelligence

Top DoD railroad rolling stock manufacturing contractors (NAICS 336510)

Contract actions: October 1, 2021 – October 23, 2026 Updated October 24, 2026 Department of Defense agency guide NAICS 336510 · Railroad Rolling Stock Manufacturing
Latest 12 months
$4.0M
Net obligations · Down $6.9M vs. $10.9M preceding
Prime contractors
10
With positive obligations in the latest 12 months

Research the DoD federal contracting market for railroad rolling stock manufacturing under NAICS 336510. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, and contract types, competition, and procurement methods.

Contract obligation trends for Railroad Rolling Stock Manufacturing at the Department of Defense

Federal records show $32.0M in net obligations across 105 awards in Railroad Rolling Stock Manufacturing at the Department of Defense from Oct 1, 2021 through Oct 23, 2026. This market accounts for 0.0014% of $2.3T in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 62.9% from $10.9M to $4.0M. 2 prime contractors accounted for at least 80% of positive obligations in that latest period.

Fiscal-year activity

FY27 is year-to-date through Oct 23, 2026; earlier years show complete fiscal-year totals.

FY27 year-to-date: $0 versus $2.7M through the same date in FY26 (−100.0%).
Net obligations · complete fiscal yearNet obligations · FY27 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$8.5M33Complete
FY2023$4.9M31Complete
FY2024$3.6M35Complete
FY2025$8.3M40Complete
FY2026$6.8M23Complete

Market at a glance

All reported prime contract awards
All-period net obligations
$32.0M
105 awards · 59 prime contractors
Latest 12-month movement
−62.9%
$4.0M vs. $10.9M
Leading eight prime share
100.0%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
0.0014% of $2.3T in agency-wide net obligations.
Set-aside share when reported
46.8% of 94 awards with reported set-aside status.
Set-aside reporting
44 set aside · 50 no set-aside · 11 not reported

What changed in the last 12 months?

Oct 24, 2025–Oct 23, 2026, compared with Oct 24, 2024–Oct 23, 2025.

Competitive shifts

KNDS DEFENCE UK LIMITED lost the most market share
23.8%→0.0%−23.8 percentage points
The contractor now ranks outside the ranking by positive obligations, based on 2 reported actions.

Market structure

Top-five contractor share increased
85.5%→97.9%+12.4 percentage points
Contractors outside the top five now account for 2.1% of positive obligations.

Buyer demand

Reported obligations through W390 MCALESTER ARMY AMMO PLANT decreased
$4.0M→$688K−$3.3M
Latest-period activity spans 3 awards across 3 prime contractors.
How these findings are calculated

Findings are selected from matched-period changes in obligations, share, rank, funding offices, concentration, reported set-asides, material award actions, and agency-peer outliers. Related signals are combined, and only material evidence-backed changes are shown. Review the full methodology.

Federal contract obligations by funding office

See how positive obligations were attributed across funding offices in the 12 months ending Oct 23, 2026.

75.5% of positive obligations were attributed to 0019 CS HHC HHC EXPEDITIONA. That represents $3.1M, down $120K from the preceding 12 months.

Latest 12-month share of positive obligations; the gray segment represents all other reported offices.

  1. 0019 CS HHC HHC EXPEDITIONA75.5% · $3.1M · down $120K
  2. W390 MCALESTER ARMY AMMO PLANT17.0% · $688K · down $3.3M
  3. DLA TROOP SUPPORT4.8% · $194K · down $56K
  4. W6F7 916TH SPT BDE1.9% · $78K · down $155K
  5. W4QU USA ABERDEEN TEST CENTER0.76% · $31K · up $31K
View reported office rankings, comparisons, and evidence

USAspending assigns each award to a funding office. That office may differ from the requiring activity, program office, contracting office, individual buyer, or actual customer.

  1. Reported funding office

    0019 CS HHC HHC EXPEDITIONA

    #1Up 1 from #2

    Latest 12 months

    $3.1M

    75.5% of positive obligations

    Versus preceding 12 months

    −$120K

    1 active prime contractor · 2 awards

    View office comparison and evidence

    Reported obligations decreased 3.8% from $3.2M to $3.1M. The office’s share of positive obligations moved from 29.1% to 75.5%, a change of +46.4 percentage points.

    The latest period contains 2 actions across 2 awards. The preceding period contained 2 active prime contractors and 3 awards.

  2. Reported funding office

    W390 MCALESTER ARMY AMMO PLANT

    #2Down 1 from #1

    Latest 12 months

    $688K

    17.0% of positive obligations

    Versus preceding 12 months

    −$3.3M

    3 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations decreased 82.6% from $4.0M to $688K. The office’s share of positive obligations moved from 36.4% to 17.0%, a change of −19.4 percentage points.

    The latest period contains 4 actions across 3 awards. The preceding period contained 8 active prime contractors and 9 awards.

    Leading award-level changes

  3. Reported funding office

    DLA TROOP SUPPORT

    #3Up 1 from #4

    Latest 12 months

    $194K

    4.8% of positive obligations

    Versus preceding 12 months

    −$56K

    6 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations decreased 22.5% from $251K to $194K. The office’s share of positive obligations moved from 2.3% to 4.8%, a change of +2.5 percentage points.

    The latest period contains 7 actions across 7 awards and 3 newly active prime contractors. The preceding period contained 5 active prime contractors and 10 awards.

  4. Reported funding office

    W6F7 916TH SPT BDE

    #4Up 1 from #5

    Latest 12 months

    $78K

    1.9% of positive obligations

    Versus preceding 12 months

    −$155K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations decreased 66.4% from $233K to $78K. The office’s share of positive obligations moved from 2.1% to 1.9%, a change of −0.2 percentage points.

    The latest period contains 1 action across 1 award. The preceding period contained 1 active prime contractor and 1 award.

  5. Reported funding office

    W4QU USA ABERDEEN TEST CENTER

    #5New to the positive-obligation ranking

    Latest 12 months

    $31K

    0.76% of positive obligations

    Versus preceding 12 months

    +$31K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations rose from $0 to $31K. The office’s share of positive obligations moved from 0% to 0.76%, a change of +0.8 percentage points.

    The latest period contains 1 action across 1 award and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  6. Reported funding office

    DLA AVIATION

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$182K

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations decreased 100.0% from $182K to $0. The office’s share of positive obligations moved from 1.7% to 0%, a change of −1.7 percentage points.

    The latest period contains 0 actions across 0 awards. The preceding period contained 1 active prime contractor and 1 award.

  7. Reported funding office

    W6TC 596TH USA TRANS SURF BDE

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$156K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations decreased 100.0% from $156K to $0. The office’s share of positive obligations moved from 1.4% to 0%, a change of −1.4 percentage points.

    The latest period contains 1 action across 1 award. The preceding period contained 1 active prime contractor and 1 award.

  8. Reported funding office

    W4GG HQ US ARMY TACOM

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$2.6M

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations decreased 100.0% from $2.6M to $0. The office’s share of positive obligations moved from 23.8% to 0%, a change of −23.8 percentage points.

    The latest period contains 2 actions across 1 award. The preceding period contained 1 active prime contractor and 1 award.

Contract types, competition, and procurement methods

From Oct 24, 2025 through Oct 23, 2026, 11 awards had positive obligations totaling $4.0M. Simplified Acquisition was the leading reported procedure, accounting for 97.3% of positive obligations. Awards with a reported parent IDV accounted for 75.5%.

Leading award type
75.5%
Delivery Order
Leading reported procedure
97.3%
Simplified Acquisition
Reported parent IDV
75.5%
of positive obligations had a reported parent IDV
Median reported offers
4
10 of 11 awards reported offers

Buying method changes

Compared with Oct 24, 2024–Oct 23, 2025. Based on 11 current awards and 29 preceding awards with positive net obligations.

Parent-IDV obligation share
75.5%
Up from 29.1% in the preceding period
Simplified Acquisition obligation share
97.3%
Up from 76.2% in the preceding period
How to read these changes

Directional color and the Up or Down labels show historical movement only. Green does not mean favorable and red does not mean unfavorable; neither predicts a future procurement method.

View buying-method details and data coverage

Award types

Reported valueAwardsPositive obligationsShare
Delivery Order(C)1$3.1M75.5%
Purchase Order(B)9$961K23.8%
Definitive Contract(D)1$31K0.76%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)1$3.1M75.5%
Not reported10$992K24.5%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Single Award(S)1$3.1M75.5%
Not reported10$992K24.5%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Simplified Acquisition(SP1)8$3.9M97.3%
Sp1(SIMPLIFIED ACQUISITION)3$110K2.7%

Extent competed

Reported valueAwardsPositive obligationsShare
Competed Under SAP(F)8$3.9M97.3%
F(COMPETED UNDER SAP)3$110K2.7%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Not reported11$4.0M100.0%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Not reported11$4.0M100.0%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)8$3.9M97.3%
J(FIRM FIXED PRICE)3$110K2.7%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Rail Cars(2220)1$3.1M75.5%
Track Material, Railroad(2250)1$657K16.2%
Lubrication and Fuel Dispensing Equipment(4930)4$193K4.8%
Locomotive and Rail Car Accessories and Components(2240)3$79K2.0%
Right-of-Way Construction and Maintenance Equipment, Railroad(2230)1$32K0.78%
Maint/Repair/Rebuild of Equipment- Railway Equipment(J022)1$31K0.76%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
Department of the Army(2100)5$3.9M95.2%
Defense Logistics Agency(97AS)6$194K4.8%

Awarding offices

Reported valueAwardsPositive obligationsShare
0906 Aq Co Det A Contracti(W90VN9)1$3.1M75.5%
W6qk Acc-Ri(W519TC)1$657K16.2%
Dla Troop Support(SPE8EE)6$194K4.8%
W6qm Micc-Ft Drum(W911S2)2$110K2.7%
W6qk Acc-Apg(W91CRB)1$31K0.76%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
W90VN924D0015(9700)1$3.1M75.5%
Not reported10$992K24.5%

Offers, award size, and timing

Median reported offers
4 median
10 reported · 1 not reported
Positive award obligations
$32K median
$15K–$109K middle 50%
Reported performance period
180 days (~6 months) median
11 reported · 0 not reported

Calculations group latest-period actions by award, retain awards with positive net obligations for share denominators, and use each award's latest reported USAspending procurement fields as of Oct 23, 2026. Blank competition, pricing, PSC, or parent-IDV values remain not reported; they are not inferred. Offer counts must be positive and below the FPDS 999 placeholder. Awarding organizations can differ from the funding agency that defines this page.

Top federal contractors

Latest 12-month market share, concentration, and complete prime contractor rankings across the period shown.

Prime contractor concentration
2 of 10prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
75.5%of positive obligations in the last 12 months
Leading four prime contractors
96.4%of positive obligations in the last 12 months
Leading eight prime contractors
100.0%of positive obligations in the last 12 months

Based on $4.0M in positive obligations during the 12 months ending Oct 23, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Oct 24, 2024–Oct 23, 2025.

Last 12mo obligation volume: Highest positive obligations first; net deobligations follow by magnitude; contractors with no activity in the last 12 months follow by all-period obligations. Ranks use the complete contractor list and remain fixed when search narrows the results.

15 leading contractors
  1. #1

    Last 12mo obligations

    $3.1M

    75.5%

    Dollar movement

    −$120K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    2 actions

    Historical and award details for EASTERN R&E CO. LTD
    Obligations: prior → latest
    $3.2M → $3.1M
    −3.8%
    Share: prior → latest
    29.1% → 75.5%
    +46.4 percentage points
    All-period obligations
    $9.3M
    29.1% of all-period positive obligations · 3 awards
    Recorded activity
    Since May 27, 2024
    through Jan 26, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported22
    Reported small business00
    All-period set-aside types

    None reported.

  2. #2

    Last 12mo obligations

    $657K

    16.2%

    Dollar movement

    +$584K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for HARMER STEEL PRODUCTS COMPANY
    Obligations: prior → latest
    $73K → $657K
    +803.2%
    Share: prior → latest
    0.67% → 16.2%
    +15.6 percentage points
    All-period obligations
    $1.7M
    5.4% of all-period positive obligations · 10 awards
    Recorded activity
    Since Apr 20, 2022
    through Mar 11, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside12
    Reported no set-aside01
    Not reported00
    Reported small business13
    All-period set-aside types
    • 7 · Total small business
  3. #3

    Last 12mo obligations

    $109K

    2.7%

    Dollar movement

    −$6K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for ATAP INC
    Obligations: prior → latest
    $115K → $109K
    −5.6%
    Share: prior → latest
    1.1% → 2.7%
    +1.6 percentage points
    All-period obligations
    $259K
    0.81% of all-period positive obligations · 3 awards
    Recorded activity
    Since Apr 2, 2024
    through Nov 12, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 3 · Total small business
  4. #4

    Last 12mo obligations

    $78K

    1.9%

    Dollar movement

    −$155K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for MILITARY AIRLIFT EXPERTS LLC (MILAIRX LLC)
    Obligations: prior → latest
    $233K → $78K
    −66.4%
    Share: prior → latest
    2.1% → 1.9%
    −0.2 percentage points
    All-period obligations
    $312K
    0.97% of all-period positive obligations · 2 awards
    Recorded activity
    Since Sep 16, 2025
    through Feb 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 2 · Total small business
  5. #5

    Last 12mo obligations

    $61K

    1.5%

    Dollar movement

    +$61K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for JA MOODY LLC
    Obligations: prior → latest
    $0 → $61K
    Not comparable
    Share: prior → latest
    0% → 1.5%
    +1.5 percentage points
    All-period obligations
    $61K
    0.19% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 2, 2026
    through Apr 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  6. #6

    Last 12mo obligations

    $32K

    0.78%

    Dollar movement

    +$32K

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for VASTGLOBE LOGISTICS LLC
    Obligations: prior → latest
    $0 → $32K
    Not comparable
    Share: prior → latest
    0% → 0.78%
    +0.8 percentage points
    All-period obligations
    $32K
    0.10% of all-period positive obligations · 2 awards
    Recorded activity
    Since Apr 7, 2025
    through Dec 11, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 2 · Total small business
  7. #7

    Last 12mo obligations

    $31K

    0.76%

    Dollar movement

    +$31K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for RAILMARK TRACK WORKS INC
    Obligations: prior → latest
    $0 → $31K
    Not comparable
    Share: prior → latest
    0% → 0.76%
    +0.8 percentage points
    All-period obligations
    $31K
    0.10% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 23, 2026
    through Apr 23, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  8. #8

    Last 12mo obligations

    $23K

    0.57%

    Dollar movement

    −$7K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    2 actions

    Historical and award details for ECHELON SUPPLY AND SERVICE, INC.
    Obligations: prior → latest
    $30K → $23K
    −22.1%
    Share: prior → latest
    0.27% → 0.57%
    +0.3 percentage points
    All-period obligations
    $70K
    0.22% of all-period positive obligations · 11 awards
    Recorded activity
    Since Oct 13, 2022
    through Apr 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside26
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  9. #9

    Last 12mo obligations

    $600

    0.010%

    Dollar movement

    +$600

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for OPTIPLEX LLC
    Obligations: prior → latest
    $0 → $600
    Not comparable
    Share: prior → latest
    0% → 0.010%
    0.0 percentage points
    All-period obligations
    $600
    0% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 27, 2026
    through Apr 27, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    $283

    0.010%

    Dollar movement

    +$283

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for KAMPI COMPONENTS CO INC
    Obligations: prior → latest
    $0 → $283
    Not comparable
    Share: prior → latest
    0% → 0.010%
    0.0 percentage points
    All-period obligations
    $283
    0% of all-period positive obligations · 1 award
    Recorded activity
    Since Feb 19, 2026
    through Feb 19, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  11. #11

    Last 12mo obligations

    −$4

    0%

    Dollar movement

    −$4

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for BAREL LLC
    Obligations: prior → latest
    $0 → −$4
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $266K
    0.83% of all-period positive obligations · 3 awards
    Recorded activity
    Since Jan 5, 2022
    through Dec 10, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business11
    All-period set-aside types

    None reported.

  12. #12

    Last 12mo obligations

    $0

    0%

    Dollar movement

    −$2.6M

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for KNDS DEFENCE UK LIMITED
    Obligations: prior → latest
    $2.6M → $0
    −100.0%
    Share: prior → latest
    23.8% → 0%
    −23.8 percentage points
    All-period obligations
    $2.6M
    8.1% of all-period positive obligations · 1 award
    Recorded activity
    Since Oct 21, 2025
    through Nov 12, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    $0

    0%

    Dollar movement

    −$2.2M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    2 actions

    Historical and award details for AMERICAN EQUIPMENT COMPANY
    Obligations: prior → latest
    $2.2M → $0
    −100.0%
    Share: prior → latest
    20.3% → 0%
    −20.3 percentage points
    All-period obligations
    $2.2M
    6.9% of all-period positive obligations · 2 awards
    Recorded activity
    Since Mar 7, 2025
    through Dec 9, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside22
    Not reported00
    Reported small business22
    All-period set-aside types

    None reported.

  14. #14

    Last 12mo obligations

    $0

    0%

    Dollar movement

    $0

    no change vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for PERFECTED SOLUTIONS LLC
    Obligations: prior → latest
    $0 → $0
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $0
    0% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 7, 2026
    through Apr 9, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  15. #15
    SHIN SUNG SYSTEM CO,.LTD.Historical · no latest 12-month activity · last action Jan 13, 2025

    Last 12mo obligations

    $0

    0%

    Dollar movement

    $0

    no change vs. prior 12 months

    Last 12mo awards

    0 awards

    0 actions

    Historical and award details for SHIN SUNG SYSTEM CO,.LTD.
    Obligations: prior → latest
    $0 → $0
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $9.2M
    28.8% of all-period positive obligations · 3 awards
    Recorded activity
    Since Dec 22, 2021
    through Jan 13, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported01
    Reported small business00
    All-period set-aside types

    None reported.

Recent federal contract award activity

Recent contract actions with unusually large obligation changes or meaningful shifts in contractor and funding-office activity.

Base award

This action

+$657K

HARMER STEEL PRODUCTS COMPANY

W390 MCALESTER ARMY AMMO PLANT

REPAIRS TO THE 1 YOKE ON MCALESTER ARMY AMMUNITIONS PLANT (MCAAP) RAIL SYSTEM.

Why it stands out

The contractor climbed 10 positions in this market.

It now ranks #2 by positive obligations over the latest 12 months.

Award net obligations
$657K
Share of 12-month positive obligations
16.2%
Supporting data
Prime contractor
#2 · 16.2% share
up 10 ranks · +15.6 percentage points · $584K net increase; action exceeded it by $73K
Funding office
#2 · 17.0% attributed share
$3.3M net decline despite this positive action
PIID W519TC26PA062
Base award

This action

+$3.1M

EASTERN R&E CO. LTD

0019 CS HHC HHC EXPEDITIONA

EXTEND THE CONTRACT FOR THE PERIOD OF 01 JANUARY 2026 THROUGH 31 DECEMBER 2026 BY EXERCISING THE 2ND OPTION PERIOD PURSUANT TO CONTRACT CLAUSE TERMS AND INCORPORATE TWO MINOR UPGRADES FOR RAIL CARS: GUARD RAILS (W/SAFETY BAR POCKETS) AND SAFETY BARS.

Why it stands out

One action equaled at least half of the market’s latest 12-month positive obligations.

The $3.1M action represented 75.5% of the market’s positive obligations over the latest 12 months.

Award net obligations
$3.1M
Share of 12-month positive obligations
75.5%
Supporting data
Prime contractor
#1 · 75.5% share
$120K net decline despite this positive action
Funding office
#1 · 75.5% attributed share
$120K net decline despite this positive action
PIID W90VN926FA015
Deobligation

This action

−$162K

PERFECTED SOLUTIONS LLC

W0QF HQ SURFACE DEPL & DISTR CMD

S2P2: RAILROAD TRACK MATERIALS: W911S226U2690

Why it stands out

This award recorded a material contraction.

The action removed $162K. A deobligation does not by itself show lower requirement demand.

Award net obligations
$0
Share of 12-month positive obligations
4.0%
Supporting data
Funding office
0% attributed share
−1.4 percentage points · $153K net decline; action exceeded it by $10K
PIID W911S226PA360 · Mod P00001
Base award

This action

+$109K

ATAP INC

DLA TROOP SUPPORT

8511750494!NOZZLE,FUEL AND OIL

Why it stands out

A new award added obligations despite weaker contractor activity.

The action represented 2.7% of the market’s latest 12-month positive obligations while the contractor’s obligations fell $6K overall.

Award net obligations
$109K
Share of 12-month positive obligations
2.7%
Supporting data
Prime contractor
#3 · 2.7% share
$6K net decline despite this positive action
Funding office
#3 · 4.8% attributed share
$56K net decline despite this positive action
PIID SPE8EE26V0121
View recent award activity by date (10)
  1. OPTIPLEX LLCBase award · PIID SPE8EE26V0559
    Action+$600
    Award net obligations$600
  2. RAILMARK TRACK WORKS INCBase award · PIID W91CRB26CA016
    Action+$31K
    Award net obligations$31K
  3. ECHELON SUPPLY AND SERVICE, INC.Base award · PIID SPE8EE26V0526
    Action+$15K
    Award net obligations$15K
  4. PERFECTED SOLUTIONS LLCDeobligation · PIID W911S226PA360
    Action−$162K
    Award net obligations$0
  5. PERFECTED SOLUTIONS LLCBase award · PIID W911S226PA360
    Action+$162K
    Award net obligations$0
  6. ECHELON SUPPLY AND SERVICE, INC.Base award · PIID SPE8EE26V0505
    Action+$8K
    Award net obligations$8K
  7. JA MOODY LLCBase award · PIID SPE8EE26P7044
    Action+$61K
    Award net obligations$61K
  8. HARMER STEEL PRODUCTS COMPANYBase award · PIID W519TC26PA062
    Action+$657K
    Award net obligations$657K
  9. MILITARY AIRLIFT EXPERTS LLC (MILAIRX LLC)Base award · PIID W911S226PA216
    Action+$78K
    Award net obligations$78K
  10. KAMPI COMPONENTS CO INCBase award · PIID SPE8EE26V0369
    Action+$283
    Award net obligations$283

DoD railroad rolling stock manufacturing market FAQs

Answers based on reported federal contract data.

Who are the top DoD railroad rolling stock manufacturing contractors?

In the 12 months through October 23, 2026, EASTERN R&E CO. LTD, HARMER STEEL PRODUCTS COMPANY, and ATAP INC were the leading DoD railroad rolling stock manufacturing prime contractors by positive obligations.

  1. #1

    EASTERN R&E CO. LTD

    $3,052,986 in positive obligations

  2. #2

    HARMER STEEL PRODUCTS COMPANY

    $656,776 in positive obligations

  3. #3

    ATAP INC

    $108,922 in positive obligations

Rankings use reported USAspending award data.

Did DoD contract obligations decrease in the railroad rolling stock manufacturing market?

Yes. Measured by net prime contract obligations, reported DoD activity in the railroad rolling stock manufacturing market decreased 62.9% from $10,902,057 in the preceding 12 months to $4,044,506 in the 12 months through October 23, 2026.

Latest 12 months
$4,044,506
Net prime contract obligations
Preceding 12 months
$10,902,057
Net prime contract obligations
Change
−62.9%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent DoD contract award activity was reported in the railroad rolling stock manufacturing market?

Recent DoD contract award activity reported in the railroad rolling stock manufacturing market included actions for HARMER STEEL PRODUCTS COMPANY, EASTERN R&E CO. LTD, and PERFECTED SOLUTIONS LLC during the 12 months through October 23, 2026.

Action obligations are transaction-level amounts, not current award-level obligations.

Which procurement methods were reported for DoD contracts under NAICS 336510?

From October 24, 2025 through October 23, 2026, DoD reported 11 positive-obligation awards for railroad rolling stock manufacturing under NAICS 336510. The leading award type was delivery order. The leading reported procedure was simplified acquisition.

Positive-obligation awards
11
Leading reported procedure
Simplified Acquisition
97.3% of positive obligations
Leading award type
Delivery Order
75.5% of positive obligations
Full and open
0%
of positive obligations
Reported parent IDV
75.5%
of positive obligations

Percentages use positive obligations as the denominator.

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Complete market indexes:

Nearby NAICS at this agency:

Markets sharing leading prime records:

Leading-prime vehicle memberships:

Company memberships do not establish award-channel use.

Reported obligations include contract actions from October 1, 2021 through October 23, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility. Public Department of Defense award records are generally delayed by 90 days.

Review data methodology