Agency facts

Full name
Department of the Army Acquisition Support Center PEO Combat Support and Combat Service Support
Organization
Contract obligations
$4,293,518,717 In FY2025

Agency codes and contract spending come from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $2,273,430,550
FY2025 $4,293,518,717
FY2024 $3,486,212,657
FY2023 $4,241,790,214

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Oshkosh Defense LLC $517,818,533
2 Am General LLC $185,984,403
3 Mack Defense LLC $136,128,956
4 Taylor Defense Products, LLC $127,981,966
5 Cummins Power Generation Inc. $122,931,937
6 BAE Systems Land And Armaments L.P. $112,260,293
7 Caterpillar Inc. $97,091,370
8 Astronics Test Systems Inc. $89,327,256
9 JCB Inc. $86,776,837
10 Vigor Works LLC $77,265,587

Top contract vehicles by obligations

Rank Vehicle Obligated, FY2026–FY2027 Share
1 Responsive Strategic Sourcing for Services (RS3) IDIQ run by DOD · 5 contractors $74,965,412
2 ASTRO GWAC run by GSA · 1 contractor $35,684,267
3 Information Analysis Center Multiple-Award Contract (IAC-MAC) IDIQ run by DOD · 5 contractors $20,005,489
4 Seaport Next Generation (Seaport-NXG) IDIQ run by DOD · 1 contractor $15,650,791
5 Multiple Award Schedule (MAS) GSA Schedule run by GSA · 5 contractors $6,556,122
6 Water Storage Distribution System IDIQ run by DOD · 1 contractor $6,416,538
7 One Acquisition Solution for Integrated Services (OASIS) IDIQ run by GSA · 2 contractors $2,320,980
8 Alliant II GWAC run by GSA · 1 contractor $2,319,870
9 Army Watercraft Sustainment Maintenance - Zone 2 (AWSM) IDIQ run by DOD · 1 contractor $2,085,933
10 One Acquisition Solution for Integrated Services - Small Business (OASIS SB) IDIQ run by GSA · 2 contractors $1,647,786

10 of 21 vehicles listed here. See the rest on GovTribe.

Contracting staff

About this agency

The Department of the Army Acquisition Support Center under PEO Combat Support and Combat Service Support is the Army's principal acquisition arm for combat support and combat service support equipment, platforms, and systems. The office manages contracts for ground vehicles, unmanned systems, power generation, protective equipment, and related combat-enablement technologies across the Army's operational and sustainment mission.

The agency has issued 3,220 federal contract awards cumulatively since 1999, with $88.75 billion in combined award potential value and $49.87 billion obligated to date. Recent activity shows a declining cadence: 230 awards in 2022, 208 in 2023, 214 in 2024, 167 in 2025, and 117 year-to-date in 2026. The most recent recorded award date is July 27, 2026. The competitive prime-contractor landscape is moderately concentrated. Over the last five years, Oshkosh Defense LLC leads by award count with 158 awards ($12.82 billion combined potential value), while Am General LLC dominates by combined potential value at $20.9 billion across 60 awards. DRS Network & Imaging Systems LLC, Teledyne Flir Unmanned Ground Systems Inc., and Fibrotex USA Inc. round out the current top five. The top five primes hold 35 percent of recent awards by count and 39 percent by combined potential value.

Across the 3,220 awards in the portfolio, 532 distinct prime contractors have been awarded. Ninety percent of awards carry no set-aside designation, reflecting the agency's reliance on unrestricted competition for major platforms and systems. Small-business set-asides account for 9 percent of awards, with 8(a) sole-source awards comprising 1 percent and competitive 8(a) awards under 1 percent. HUBZone and economically disadvantaged woman-owned small-business set-asides appear sparingly.

No recent federal contract opportunities are recorded against the agency in the current solicitation pipeline. The declining award volume combined with the absence of open solicitations suggests the agency may be in a contracting pause or cycle trough, though opportunity reopening or re-solicitation could occur as fiscal-year planning unfolds.

Quick answers

What is PEO CSCSS?

PEO CSCSS is part of Acquisition Support Center, Department of Defense. Its full name is Department of the Army Acquisition Support Center PEO Combat Support and Combat Service Support.

How much does PEO CSCSS spend on contracts?

Contracts funded by PEO CSCSS and its offices obligated $4,293,518,717 in fiscal year 2025 and $14,294,952,137 in fiscal years 2023 through 2027.

Who are PEO CSCSS's largest contractors?

The contractors PEO CSCSS and its offices obligated the most to in fiscal years 2026 and 2027 are Oshkosh Defense LLC ($517,818,533), Am General LLC ($185,984,403) and Mack Defense LLC ($136,128,956).

Which contract vehicles does PEO CSCSS use most?

The contract vehicles PEO CSCSS and its offices obligated the most through in fiscal years 2026 and 2027 are Responsive Strategic Sourcing for Services (RS3) ($74,965,412), ASTRO ($35,684,267) and Information Analysis Center Multiple-Award Contract (IAC-MAC) ($20,005,489). Orders through any contract vehicle obligated $167,505,318 in those years, 7% of its contract obligations.

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