Top GSA architectural services contractors
In the 12 months ending Oct 5, 2026, the General Services Administration obligated $111.3M in net prime contract dollars under NAICS 541310, up 10.2% from $101.0M in the preceding 12 months. 82 prime contractors received positive obligations, and 16 of them accounted for 80% of that spend.
Prime contracts funded by the General Services Administration. 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 GSA 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 | Shalom Baranes Associates, P.C. | $22.5M | $957K | 20.2% | ▲ 16 |
| 2 | Zimmer Gunsul Frasca Architects LLP | $13.9M | $18.3M | 12.4% | — |
| 3 | The Miller/Hull Partnership, LLP | $9.5M | $0 | 8.5% | New |
| 4 | perkins+will, Inc. | $8.1M | $1.6M | 7.3% | ▲ 10 |
| 5 | AECOM Technical Services, Inc. | $6.9M | −$200K | 6.2% | New |
| 6 | N.K. Bhandari, Architecture & Engineering, P.C. | $4.0M | $2.2M | 3.6% | ▲ 4 |
| 7 | Dattner Architects DPC | $3.8M | $6.7M | 3.4% | ▼ 2 |
| 8 | Jacobs Engineering Group Inc. | $3.8M | $118K | 3.4% | ▲ 35 |
| 9 | Hellmuth, Obata & Kassabaum, Inc. | $2.8M | $18.6M | 2.5% | ▼ 8 |
| 10 | Page Southerland Page, Inc. | $2.6M | $2.6M | 2.3% | ▼ 2 |
| 11 | Studios Architecture | $2.6M | $2.0M | 2.3% | ▲ 1 |
| 12 | ECI/Hyer, Inc. | $2.1M | $0 | 1.9% | New |
| 13 | PDG, Inc. | $2.1M | $322K | 1.8% | ▲ 16 |
| 14 | Richter Associates Architects Inc | $1.7M | $789K | 1.5% | ▲ 5 |
| 15 | Smithgroup, Inc. | $1.6M | $6.0M | 1.4% | ▼ 9 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Shalom Baranes Associates, P.C.$957K → $22.5M (+$21.6M) · now #1
- The Miller/Hull Partnership, LLP$0 → $9.5M (+$9.5M) · now #3
- AECOM Technical Services, Inc.−$200K → $6.9M (+$7.1M) · now #5
Largest declines
- Hellmuth, Obata & Kassabaum, Inc.$18.6M → $2.8M (−$15.8M) · now #9
- Smith-Miller + Hawkinson Architects, LLP$13.4M → $899K (−$12.5M) · now #20
- LEO a Daly + Nbbj JV$8.6M → $1.3M (−$7.3M) · now #17
New to this market
11 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| The Miller/Hull Partnership, LLP | May 19, 2026 | $9.5M |
| Alphatec P.C. | Jul 23, 2026 | $1.5M |
| Trahan Architects, (a Professional Architectural Corporation) | Jun 5, 2026 | $774K |
| Engenium Group L.L.C. | Jul 29, 2026 | $722K |
| Pond-PBK JV LP | May 8, 2026 | $490K |
| HDR Michigan, Inc. | Sep 30, 2026 | $421K |
| Griskelis Young Harrell, Ltd. | Mar 4, 2026 | $367K |
| EBL Engineers, LLC | Feb 11, 2026 | $298K |
Where the money comes from
Funding sub-agencies within the General Services Administration, 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 |
|---|---|---|---|
| Public Buildings Service | $111.3M | $100.6M | Up $10.6M (10.6%) |
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 |
|---|---|---|---|
| 47PJ0020C0079 | Hellmuth, Obata & Kassabaum, Inc. ARCHITECT-ENGINEER SERVICES FOR THE FRANK E. MOSS SEISMIC UPGRADE, BACKFILL AND MODERNIZATION PROJECT LOCATED AT 350 SOUTH MAIN STREET, SALT LAKE CITY, UT 84101 | $6.6M | Nov 10, 2026 |
| 47PD0223F0045 | Skidmore Owings & Merrill LLP CLARKSBURG COURTHOUSE MODERNIZATION, CLARKSBURG, WV PHASE 2-5 DESIGN SERVICES TASK ORDER. PERIOD OF PERFORMANCE IS 5/12/2023 THROUGH 10/14/2024. TASK ORDER VALUE IS $5,360,672.38. | $5.9M | Nov 30, 2026 |
| 47PH0821F0013 | Pond - FSB a Joint Venture ARCHITECT ENGINEERING (AE) SERVICES FOR REPAIR AND ALTERATION OF THE WILLIAM J. HOLLOWAY, JR. U.S. COURTHOUSE & THE U.S. POST OFFICE/COURTHOUSE IN OKLAHOMA CITY, OKLAHOMA. | $9.7M | Dec 4, 2026 |
| 47PB0023F0061 | Morphosis Architects PROVIDE AE SERVICE AT CALAIS FERRY POINT LPOE SPONSORED BY THE (BIL) | $5.8M | Feb 9, 2027 |
| 47PC0323C0002 | Stantec Consulting Services Inc. ARCHITECT-ENGINEER (A/E) SERVICES FOR A NEW U.S. COURTHOUSE ANNEX FEDERICO DEGETAU FEDERAL BUILDING AND CLEMENTE RUIZ NAZARIO U.S. COURTHOUSE HATO REY, PR, 00918. | $22.9M | Feb 22, 2027 |
| 47PB5426F0014 | Shalom Baranes Associates, P.C. A/E TASK ORDER 47PB5426F0014. 1800F REANIMATION - PHASE 2 - CORE AND SHELL DESIGN LOCATED AT 1800 F ST. WASHINGTON, DC. | $21.0M | Aug 4, 2027 |
| 47PG0221F0045 | Krueck & Sexton Architects, Ltd WHITTAKER FACADE PROSPECTUS AE, WHITTAKER COURTHOUSE, 400 E 9TH STREET, KANSAS CITY, MO 64106 THIS AWARD IS FOR THE PRE-DESIGN SERVICES FOR WHITTAKER FACADE PROSPECTUS AE. | $8.9M | Aug 5, 2027 |
| 47PF0024F0544 | AECOM Technical Services, Inc. ARCHITECT ENGINEERING INTERIOR TASK ORDER GENERAL SERVICES ADMINISTRATION CENTER FOR ENGINEERING 1800 F STREET NORTHWEST WASHINGTON D.C. SUBJECT MATTER EXPERT SUPPORT SERVICES… | $7.2M | Aug 25, 2027 |
| GS11P08MKC0080 | Zimmer Gunsul Frasca Architects LLP RECOVERY ACT AWARD ARRA FUNDED CODE: TAS::47 4543::TAS 1) CONTRACTOR TO PROVIDE ARCHITECT-ENGINEER DESIGN SERVICES FOR THE DEPARTMENT OF HOMELAND SECURITY (DHS) CONSOLIDATION… | $41.6M | Jan 1, 2028 |
| 47PK0123F0002 | Line and Space, LLC TASK ORDER - AE SERVICES, DOUGLAS,ARIZONA LAND PORT OF ENTRY | $6.9M | Feb 29, 2028 |
Common questions
Who are the top GSA contractors for NAICS 541310?
In the latest 12 months, Shalom Baranes Associates, P.C. ($22.5M), Zimmer Gunsul Frasca Architects LLP ($13.9M), The Miller/Hull Partnership, LLP ($9.5M) received the most GSA obligations for architectural services.
How concentrated is this market?
The eight largest primes held 65.0% of positive obligations, and Shalom Baranes Associates, P.C. alone held 20.2%. 11 contractors won their first obligations in this market during the latest 12 months.
Are any large GSA 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 47PJ0020C0079 (Hellmuth, Obata & Kassabaum, Inc., $6.6M obligated), ending Nov 10, 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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