Top State Department architectural services contractors
In the 12 months ending Oct 5, 2026, the Department of State obligated $67.8M in net prime contract dollars under NAICS 541310, down 21.5% from $86.3M in the preceding 12 months. 55 prime contractors received positive obligations, and 11 of them accounted for 80% of that spend.
Prime contracts funded by the Department of State. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top State Department contractors for NAICS 541310
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | REX Architecture, P.C. | $14.7M | $0 | 20.0% | New |
| 2 | Annum Architects, Inc. | $12.0M | $716K | 16.3% | ▲ 14 |
| 3 | d+s International LLC | $5.4M | $16.4M | 7.4% | ▼ 1 |
| 4 | BL Harbert International LLC | $4.3M | $21.0M | 5.8% | ▼ 3 |
| 5 | Studio MA, Inc. | $4.1M | $8.1M | 5.6% | ▼ 2 |
| 6 | Hellmuth, Obata & Kassabaum, P.C. | $4.1M | $0 | 5.5% | New |
| 7 | Shop Architects, Inc. | $4.0M | $2.3M | 5.4% | ▲ 3 |
| 8 | TEN Berke Architects D.P.C. | $3.5M | $0 | 4.8% | New |
| 9 | Weiss/Manfredi Architects LLP | $3.4M | $6.4M | 4.7% | ▼ 5 |
| 10 | M Arthur Gensler JR & Associates Inc | $2.6M | $2.9M | 3.6% | ▼ 2 |
| 11 | Morphosis Architects | $2.1M | $1.9M | 2.9% | — |
| 12 | Ennead Architects LLP | $1.8M | −$501K | 2.5% | New |
| 13 | Miscellaneous Foreign Awardees | $1.6M | $1.1M | 2.2% | — |
| 14 | Hollingsworth-Pack Corporation | $1.5M | −$44K | 2.1% | New |
| 15 | Lever Architecture, P.C. | $1.3M | $0 | 1.8% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- REX Architecture, P.C.$0 → $14.7M (+$14.7M) · now #1
- Annum Architects, Inc.$716K → $12.0M (+$11.3M) · now #2
- Hellmuth, Obata & Kassabaum, P.C.$0 → $4.1M (+$4.1M) · now #6
Largest declines
- BL Harbert International LLC$21.0M → $4.3M (−$16.8M) · now #4
- d+s International LLC$16.4M → $5.4M (−$11.0M) · now #3
- Machado and Silvetti Associates, Inc$4.4M → $106K (−$4.3M) · now #33
New to this market
18 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| REX Architecture, P.C. | Sep 30, 2026 | $14.7M |
| Hellmuth, Obata & Kassabaum, P.C. | Aug 24, 2026 | $4.1M |
| TEN Berke Architects D.P.C. | Sep 14, 2026 | $3.5M |
| Lever Architecture, P.C. | Aug 24, 2026 | $1.3M |
| Fides Limited | Jul 23, 2026 | $489K |
| Jinoo Consultants | Sep 17, 2026 | $233K |
| Modern Age Creative Solutions | Jul 26, 2026 | $155K |
| Space Factory | Jun 16, 2026 | $107K |
Where the money comes from
Funding sub-agencies within the Department of State, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Department of State | $67.8M | $86.3M | Down $18.5M (21.5%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 19AQMM20F0097 | Allied Works Architecture Inc PROJECT DEVELOPMENT SERVICES INCLUDING INVESTIGATIONS, DATA COLLECTION, ANALYSIS, DESIGN, AND DOCUMENTATION IN ULAANBAATAR | $12.7M | Nov 5, 2026 |
| SAQMMA13C0001 | TOD Williams Billie Tsien/Davis Brody Bond Architects, a Joint Venture DESIGN SERVICES FOR MEXICO CITY, MEXICO NEW EMBASSY COMPOUND. . | $6.3M | Dec 31, 2026 |
| SAQMMA15F0867 | Krueck & Sexton Architects, Ltd PROJECT SURVEY/SCHEMATIC DESIGN. . | $3.1M | Jun 18, 2027 |
| 19AQMM26F1143 | Hellmuth, Obata & Kassabaum, P.C. AWARD OF A&E SERVICES FOR ADVANCING THE HONG KONG SELECTIVE IMPROVEMENTS PROJECT. | $4.1M | Aug 12, 2027 |
| 19AQMM18F2818 | Shop Architects, Inc. CO IS DAVID VIVIAN. COR IS ALEX OPORTO. APPROVED ACTION MEMO AND RFCA ARE ATTACHED. | $10.2M | Aug 31, 2027 |
| SAQMMA17C0017 | Studio Gang Architects Ltd BRASILIA NEW EMBASSY COMPOUND. | $13.6M | Sep 24, 2027 |
| 19AQMM20F2364 | Morphosis Architects RIYADH NEC BRIDGING | $8.1M | Oct 16, 2027 |
| 19AQMM18F0859 | Richard & Kennedy Architects, LLC PROJECT DESIGN SERVICES. | $12.5M | Mar 1, 2028 |
| 19AQMM22F1404 | Ennead Architects LLP PROJECT DEVELOPMENT AND DESIGN SERVICES IN NAIROBI, KENYA | $14.1M | Mar 27, 2028 |
| 19AQMM22F1456 | Kierantimberlake LLC PROJECT DEVELOPMENT AND DESIGN SERVICES IN BRUSSELS, BELGIUM. | $27.4M | Mar 30, 2028 |
Common questions
Who are the top State Department contractors for NAICS 541310?
In the latest 12 months, REX Architecture, P.C. ($14.7M), Annum Architects, Inc. ($12.0M), d+s International LLC ($5.4M) received the most State Department obligations for architectural services.
How concentrated is this market?
The eight largest primes held 70.9% of positive obligations, and REX Architecture, P.C. alone held 20.0%. 18 contractors won their first obligations in this market during the latest 12 months.
Are any large State Department NAICS 541310 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 19AQMM20F0097 (Allied Works Architecture Inc, $12.7M obligated), ending Nov 5, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$19.7MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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