Federal contractor overview
CSSI, LLC is registered as a federal contractor under UEI MU5BJR4UM2V3 and CAGE 0YUD7, and is located in WASHINGTON, DC, USA. Federal award data shows $657,022,256 across 453 federal awards, with top agencies including Department of Transportation and Department of Defense. The contractor's primary NAICS classification is 541330, and its public business classifications include For Profit Organization and Limited Liability Company. Its organization hierarchy includes PCS-ATLAS CO-INVEST L.P. and PCS ATLAS HOLDINGS, LLC.
Contractor identifiers
- Legal business name
- CSSI, LLC
- Unique Entity ID
- MU5BJR4UM2V3
- CAGE code
- 0YUD7
- Location
- WASHINGTON, DC, USA
- Website
- Visit contractor site
Capabilities and keywords
SYSTEMS ENGINEERING,SYSTEMS DESIGN & DEVELOPMENT,TECHNICAL & ENGINEERING SUPPORT SERVICES,COMPUTER SCIENCES SERVICES,INTEGRATED LOGISTICS SUPPORT,MAINTENANCE ENGINEERING,TELECOMMUNICATIONS SUPORT SERVICES,PROGRAM MANAGEMENT SUPPORT,PROGRAM REQUIREMENTS AN
NAICS codes and business types
NAICS codes
Business and socioeconomic classifications
- For Profit Organization
- Limited Liability Company
Organization hierarchy
-
Ultimate parent
PCS-ATLAS CO-INVEST L.P.
-
Immediate parent
PCS ATLAS HOLDINGS, LLC
Other related organizations
-
Affiliate
BOOZ ALLEN HAMILTON ENGINEERING SERVICES LLC
UEI LMKDJA7B7NV6
-
Affiliate
LEIDOS, INC.
UEI UE9QJD4KK1L6
-
Affiliate
LS TECHNOLOGIES LLC
UEI K97DGB4NAKJ5
-
Affiliate
PERATON ENTERPRISE SOLUTIONS LLC
UEI MBSRAWAQ9559
-
Affiliate
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
UEI MMLKPW9JLX64
-
Affiliate
SCIENTIFIC RESEARCH CORPORATION
UEI FAK7LNGRNAN5
Federal obligation history
Total federal obligations
$657,022,256
- Awards
- 453
Top agencies by obligations
- Department of Transportation
179 award actions
$545,681,930 - Department of Defense
206 award actions
$78,900,859
Federal obligations by fiscal year
Net federal contract obligations decreased from $33,044,596 in FY2024 to $28,680,907 in FY2025.
Scroll horizontally to view all fiscal years.
View fiscal-year data table
| Fiscal year | Net obligations | Award actions |
|---|---|---|
| FY2026 YTD | $12,149,359 | 21 |
| FY2025 | $28,680,907 | 46 |
| FY2024 | $33,044,596 | 73 |
| FY2023 | $32,461,067 | 51 |
| FY2022 | $24,112,508 | 66 |
| FY2021 | $20,094,809 | 46 |
Recent federal awards
-
$678,000
Obligated
PIID 692M1525F00057
Awarded Dec 2, 2025
-
$6,666,619
Obligated
PIID 693KA825C00017
Awarded Jun 18, 2025
-
$12,743,676
Obligated
PIID 693KA923F00093
Awarded May 15, 2023
-
$1,448,488
Obligated
PIID 693KA922F00197
Awarded Sep 21, 2022
Federal contract vehicles
-
Systems Engineering 2020 (SE2020)
Federal Aviation Administration
$212.4M
Obligated
IDIQ Expired
110 task orders
-
$32.5M
Obligated
IDIQ Active
4 task orders
-
SeaPort Next Generation
Department of the Navy
$500
Obligated
Multiple Award Contract Active
1 task order
-
OASIS Small Business
General Services Administration
Contract holder
IDIQ Expired
Frequently asked questions
- What is CSSI, LLC's Unique Entity ID (UEI)?
- CSSI, LLC's Unique Entity ID is MU5BJR4UM2V3, as registered in SAM.gov.
- What is CSSI, LLC's CAGE code?
- CSSI, LLC's CAGE code is 0YUD7.
- What is CSSI, LLC's primary NAICS code?
- CSSI, LLC's primary NAICS classification is 541330.
- Where is CSSI, LLC located?
- CSSI, LLC is located in WASHINGTON, DC, USA.
- How much has CSSI, LLC received in federal contract obligations?
- CSSI, LLC has received $657,022,256 in federal contract obligations across 453 federal awards.
- Which federal agencies has CSSI, LLC worked with?
- CSSI, LLC's top federal agencies include Department of Transportation and Department of Defense.
- When was CSSI, LLC registered in SAM.gov?
- CSSI, LLC's SAM.gov registration date is March 12, 2002.
- What business classifications does CSSI, LLC hold?
- CSSI, LLC's registered business and socioeconomic classifications include For Profit Organization and Limited Liability Company.