Department of State
Abbreviation: DOS
Secretary of State (as of 2026): Marco Rubio
2026 Budget: $58B
CGAC Code: 1900
Website: state.gov
The Department of State is the lead U.S. foreign affairs agency. It advises the President, conducts negotiations, represents the United States at the United Nations, and operates more than 270 embassies, consulates, and missions around the world.
State manages the Foreign Service, passport and visa issuance, consular protection of U.S. citizens abroad, and the principal foreign assistance and security-cooperation accounts. Regional and functional bureaus cover every region of the world and every major policy portfolio.
Sub-Departments
Bureaus, services, and major components within DOS.

Bureau of African Affairs
Handles U.S. diplomatic relations with countries in sub-Saharan Africa.

Bureau of Consular Affairs
Issues passports and visas and protects U.S. citizens and nationals overseas.

Bureau of Counterterrorism
Leads State Department efforts to counter terrorism abroad and coordinates foreign terrorist organization designations.

Bureau of Democracy, Human Rights, and Labor
Promotes democratic institutions, human rights, and international labor rights worldwide.

Bureau of Diplomatic Security
Provides security and law enforcement services to U.S. diplomatic missions worldwide.

Bureau of East Asian and Pacific Affairs
Covers diplomacy with East Asia, the Pacific, and Australia/New Zealand.

Bureau of Economic and Business Affairs
Advances U.S. economic and commercial interests in the international community.

Bureau of Educational and Cultural Affairs
Administers exchange programs including Fulbright and the International Visitor Leadership Program.

Bureau of European and Eurasian Affairs
Manages U.S. relations with European and Eurasian nations, including NATO and EU coordination.

International Boundary and Water Commission
Applies the boundary and water treaties between the U.S. and Mexico; independent agency under State.

Bureau of Intelligence and Research
State's member of the U.S. Intelligence Community; provides all-source analysis to diplomats.

Bureau of Near Eastern Affairs
Leads diplomacy with the countries of the Middle East and North Africa.

Bureau of Political-Military Affairs
Principal link between State and Defense on arms transfers, defense trade, and security cooperation.

Bureau of South and Central Asian Affairs
Covers U.S. relations with South and Central Asian countries from Kazakhstan to Bangladesh.

U.S. Agency for Global Media
Oversees U.S. international broadcasters including VOA, Radio Free Europe/Radio Liberty, and RFA.

Bureau of Western Hemisphere Affairs
Handles diplomacy with Canada, Latin America, and the Caribbean.
How to Win DOS Contracts
Winning work at the Department of Statemeans understanding a procurement culture that blends rigorous compliance, deep mission focus, and a preference for vendors who can speak the agency's language from day one. This guide walks through how DOS buys, the vehicles it uses, and the steps your company should take to go from registered vendor to awarded contractor.
Understanding DOS Procurement
The Department of State obligates roughly $8-10B in contracts annually supporting over 270 overseas posts, the Bureau of Diplomatic Security, Consular Affairs, Foreign Service, and global IT/infrastructure programs. State procurement supports U.S. foreign policy, embassy construction and security, passport/visa operations, and cultural/exchange programs.
Overseas construction and security account for a substantial share of spend, as does IT modernization for passport processing, visa systems, and the worldwide network. Many awards are FAR plus State-specific supplements (DOSAR) and often ITAR-controlled.
How DOS Buys
State uses large IDIQs for embassy construction (Bureau of Overseas Buildings Operations), diplomatic security (Worldwide Protective Services), IT (Vanguard), and consular operations. Task-order competitions under these IDIQs drive most of the flow.
GSA MAS, OASIS+, and NITAAC CIO-SP4 also see heavy use. Overseas logistics and services use FAR Part 25 and DOSAR provisions for host-country operations.
Major Contract Vehicles
- Worldwide Protective Services (WPS)— Dominant Diplomatic Security vehicle for protective service details in high-threat posts.
- Vanguard 2.2 (IT Services)— State’s enterprise IT services IDIQ for applications, infrastructure, and cyber.
- OBO Construction IDIQs— Embassy and consulate construction mega-IDIQs, including Design-Build and CMc vehicles.
- CA BPAs (Consular Affairs)— Passport and visa systems and contact center BPAs.
- OASIS+ and GSA MAS— Used heavily for professional services, language support, and commercial IT.
Step 1: Get Registered and Compliant
Required Registrations
DOS-Specific Requirements
Certification Programs
Step 2: Identify Opportunities
Primary Sources
Key Offices
Top Contract Types
Step 3: Position Your Company
Build Relationships
Relevant NAICS Codes
- 541512–Computer Systems Design
- 561612–Security Guards and Patrol Services
- 236220–Commercial and Institutional Building Construction
- 541611–Management Consulting
- 561320–Temporary Help Services
- 541930–Translation and Interpretation Services
Step 4: Develop Winning Proposals
Technical Approach
Past Performance
Pricing Strategy
Winning Strategies
- Enter through subcontracting on WPS, Vanguard, or OBO, since direct prime entry is rare without prior State past performance.
- Invest in cleared personnel with overseas experience; pipeline depth is a differentiator.
- Track OBO’s Capital Security Construction Program cycle, since it forecasts multi-year construction demand.
- Pursue language services and cultural exchange support as lower-competition entry points.
- Leverage 8(a) and SDVOSB set-asides on State’s domestic support work, a smaller but more accessible lane.
Common Mistakes to Avoid
- Bidding overseas work without a documented host-country mobilization plan. State evaluators scrutinize logistics and duty-of-care plans.
- Under-resourcing cleared staff. State cleared-labor pipelines are tight and proposals must show concrete recruit-to-clearance timelines.
- Ignoring DOSAR. FAR-only proposals miss State-specific clauses that evaluators expect addressed.
Small Business Programs
State has generally met small-business prime goals and has strong small-business subcontracting plans on large IDIQs. 8(a) and SDVOSB have been particularly active on domestic support work and selected overseas task orders.
Key Contracting Offices
- Bureau of Administration Office of Acquisitions Management (AQM) — Washington, DC and Charleston, SC
- Bureau of Overseas Buildings Operations — Rosslyn, VA
- Bureau of Diplomatic Security Contracting Office — Washington, DC
- Bureau of Information Resource Management — Washington, DC
- Bureau of Consular Affairs — Washington, DC
DOS by the Numbers
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