Bureau of Overseas Building Operations

Washington, DC

Agency facts

Office code
19X0B0
Organization
Contract obligations
$1,584,600,464 In FY2025

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

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $484,345
FY2026 $1,342,048,671
FY2025 $1,584,600,464
FY2024 $1,761,448,322
FY2023 $2,198,706,936

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Caddell Construction CO. (De), LLC $533,318,130
2 Alutiiq Information Management, LLC $58,754,616
3 Nve, Inc. $42,173,005
4 Creative It Solutions LLC $31,798,775
5 BL Harbert International LLC $30,508,757
6 Ids International Government Services LLC $23,661,695
7 OEG Inc. $19,058,214
8 Bizsolutions 360 Inc. $18,535,258
9 Beautiful Environmental Construction Co., LTD. $18,509,384
10 Page Federal Solutions, LLC $16,523,148

Top contract vehicles by obligations

Rank Vehicle Obligated, FY2026–FY2027 Share
1 Cleared American Guards and Construction Surveillance Technicians IDIQ run by DOS · 4 contractors $70,395,163
2 Multiple Award Schedule (MAS) GSA Schedule run by GSA · 52 contractors $35,403,216
3 Worldwide Design-build Construction And Construction Projects IDIQ run by DOS · 16 contractors $33,603,377
4 Worldwide Design Services IDIQ IDIQ run by DOS · 12 contractors $18,847,494
5 Program for Forced-Entry Ballistic-Resistant Repair & Replacement, Anti-Vehicle Barriers, Modular Hardline Walls, and other Physical Security Upgrades IDIQ run by DOS · 7 contractors $16,774,643
6 Worldwide Design Build and Construction 2014-2019 IDIQ run by DOS · 12 contractors $16,420,366
7 Worldwide Electrical Power IDIQ run by DOS · 5 contractors $15,606,191
8 Worldwide BAS and HVAC Support Services IDIQ IDIQ run by DOS · 3 contractors $15,438,560
9 Worldwide AE Support Services IDIQs IDIQ run by DOS · 12 contractors $11,896,442
10 World-wide Water Storage Tank Remediation IDIQ run by DOS · 3 contractors $3,453,150

10 of 31 vehicles listed here. See the rest on GovTribe.

Contracting staff

About this agency

The Department of State Bureau of Overseas Building Operations acquires real property, facilities, construction, and related services to support U.S. diplomatic operations worldwide. A sub-agency of the State Department, OBO manages federal-contract awards and grants to maintain, construct, renovate, and outfit embassies, consulates, and residential facilities across overseas locations.

OBO's contract footprint is substantial and granular. Since 2000, the bureau has issued 93,710 federal contract awards totaling $56.36 billion in combined potential value, with $41.71 billion obligated to date. Recent activity spans 4,301 awards in 2023, 3,960 in 2024, 3,715 in 2025, 2,648 in 2026, and 3 year-to-date in 2027. The most recent recorded award date is 2027-06-14.

Contract competition is highly fragmented. Over the last five years, the top five primes by award count account for 34 percent of recent awards but represent a diverse set of awardees: the largest tranche of awards went to miscellaneous foreign awardees (3,024 awards), followed by a second tier of miscellaneous foreign awardees (1,956 awards), a third tier (746 awards), a fourth tier (514 awards), and Knoll, Inc. (353 awards). By combined potential value, the concentration is negligible at 1 percent—the top five by value are again dominated by miscellaneous foreign awardees and include Allsteel LLC, Knoll, Inc., and Fluid Solutions LLC. The portfolio reflects 6,869 distinct prime contractors over its history, indicating a long tail of small and episodic vendors typical of overseas construction and facilities work.

Set-asides are minimal: 96 percent of awards carry no set-aside designation. Small business awards (2 percent of the portfolio) are distributed across total small business (2 percent), 8(a) sole source (1 percent), and smaller shares of other SBA categories; no single set-aside category exceeds 1 percent of awards.

Grant activity is negligible. OBO has issued only 25 grants since 2017, obligating $3.2 million in total federal dollars. All grants are Project Grants awarded to a single recipient category—miscellaneous foreign awardees—with 23 awards ($3.1 million) in the last award cycle (2022) and no recorded grant activity since September 2022.

No recent contract opportunities or grant opportunities are recorded in the current source data.

Quick answers

What is Bureau of Overseas Building Operations?

Bureau of Overseas Building Operations is part of Department of State.

How much does Bureau of Overseas Building Operations spend on contracts?

Contracts funded by Bureau of Overseas Building Operations and its offices obligated $1,584,600,464 in fiscal year 2025 and $6,887,288,739 in fiscal years 2023 through 2027.

Who are Bureau of Overseas Building Operations's largest contractors?

The contractors Bureau of Overseas Building Operations and its offices obligated the most to in fiscal years 2026 and 2027 are Caddell Construction CO. (De), LLC ($533,318,130), Alutiiq Information Management, LLC ($58,754,616) and Nve, Inc. ($42,173,005).

Which contract vehicles does Bureau of Overseas Building Operations use most?

The contract vehicles Bureau of Overseas Building Operations and its offices obligated the most through in fiscal years 2026 and 2027 are Cleared American Guards and Construction Surveillance Technicians ($70,395,163), Multiple Award Schedule (MAS) ($35,403,216) and Worldwide Design-build Construction And Construction Projects ($33,603,377). Orders through any contract vehicle obligated $237,550,117 in those years, 18% of its contract obligations.

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