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Vendor, Rockville, MD

Mainstem LLC

UEI SXHHGF88NPK4, CAGE 63EE4

7 awards and $5,195,604 obligated between January 10, 2024 and December 5, 2025, 50% under full and open competition, against 999.0 offers on average where reported.

On USAspending Markdown

Sells to

Awarding agencies by dollars.

Department of the Air Force$5,195,104
Missile Defense Agency$500
Department of the Army$0
Federal Acquisition Service$0

Industries

NAICS on the awards, by dollars.

All Other Professional, Scientific, and Technical ServicesNAICS 541990$5,195,104
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)NAICS 541715$500
Computing Infrastructure Providers, Data Processing, Web Hosting, and Related ServicesNAICS 518210$0
Computer Systems Design ServicesNAICS 541512$0

How it wins

Awards by competition, set-aside and type.

Not Competed3
Full and Open Competition3
Delivery Order4

Hear when Mainstem LLC wins an award and when a contract it holds is about to end.Follow it

Contracts ending soon

Contracts Mainstem LLC holds whose performance ends in the next 19 months, by published end date. Each one is a recompete to prepare for.

Ending
1
Obligated so far
$2,977,251
Soonest
January 24, 2027

The 1 contract, the office behind each one and the dates are in the workspace. See them

Competes with

Vendors selling all other professional, scientific, and technical services to Department of the Air Force, by dollars.

The Mitre CorporationBedford, MA$1,151,657,200
Eagle Integrated Services, LLCSan Antonio, TX$190,976,176
Connected Alliances LLCLaconia, NH$163,172,069
Riverside Research InstituteFairfax, VA$151,676,561
Northrop Grumman Systems CorporationSan Jose, CA$142,101,833
Filius CorporationSan Jose, CA$65,415,221

Awards

Every award in the window, by dollars obligated.

ContractObligated
FA714623F0005Delivery Order, March 20, 2024, Not Competed$2,977,251
FA714623F0018Delivery Order, June 23, 2024, Not Competed$2,217,853
HQ085926FF036Delivery Order, December 5, 2025, Full and Open Competition, 999 offers$500
FA714622FB033Delivery Order, January 24, 2024, Not Competed$0
47QTCA21D004MJanuary 10, 2024, Full and Open Competition, 999 offers$0
HQ085926DF358December 2, 2025, Full and Open Competition, 999 offers$0
W52P1J22G0115April 2, 2024$0
Places of performance
MarylandAlabama
Product and service codes
R425 Engineering and Technical ServicesAC13 National Defense R&D Services; Department Of Defense - Military; Experimental DevelopmentDA01 Support services for activities involved with application development and support to include analysis, design, development, coding, testing, and release packaging, as well as support of off-the-shelf Business Applications.R423 Intelligence Services
Transactions
27 across 7 awards