Robert Siegel

Robert Siegel Architects, a sole proprietorship based in Katonah, New York, specializes in quality assurance inspections, architectural assessments, and construction monitoring services for U.S. diplomatic and federal facilities as a prime contractor (100% of recent awards). The firm operates exclusively in full-and-open competition; recent awards split between Total Small Business set-asides and unrestricted designations.

Robert Siegel Architects' customer base centers on the Department of State. The Bureau of Overseas Building Operations accounts for 42 awards (85% of recent award count) valued at $12.9 million combined potential value, driven by recurring delivery orders for roofing, building envelope, and waterproofing quality assurance inspections at overseas embassies and consulates. The General Services Administration Public Buildings Service Region 1 anchors the second-largest customer relationship by potential value—five awards totaling $13.9 million—reflecting the firm's participation in federal building assessment and maintenance programs domestically. A single-award indefinite delivery contract with the Department of State's Bureau of European and Eurasian Affairs carries $5 million in potential value. The Department of Homeland Security Customs and Border Protection rounds out the active customer set with two awards totaling $481 thousand. The two customer rankings diverge meaningfully: the State Department's OBO dominates award volume and workload continuity, while GSA Region 1 holds the largest individual dollar value despite fewer awards.

Robert Siegel Architects holds five parent contract vehicles. The Worldwide Building Envelope, Roofing, and Waterproofing Architectural and Engineering IDIQ (contract 19AQMM19D0046), a multiple-award Total Small Business set-aside with a $3.75 million ceiling, has generated 35 task orders valued at $4.3 million combined potential value and represents the firm's principal delivery vehicle for State Department OBO work. A single-award indefinite delivery contract (19GE5022D0003) with an original $4.999 million ceiling covers worldwide architectural, engineering, design, and construction monitoring inspection services; this vehicle has yielded 3 task orders totaling $782 thousand in potential value. Two GSA Region 1 IDVs—contract GS07P03HHD0102 ($7 million combined potential value across 6 task orders) and contract GS01P09BWD0036 ($328 thousand across 6 task orders)—anchor domestic federal building assessment and maintenance work. Recent representative delivery orders include a $357.4 thousand Total Small Business order from OBO for roof quality assurance inspection at the U.S. Embassy in Addis Ababa, Ethiopia (ultimate completion July 18, 2026); a $297.8 thousand firm fixed-price order for construction monitoring and responsible-party services in Milan, Italy (completion November 30, 2026); and a $313.5 thousand Total Small Business order for architectural and engineering assessment of roof design and modifications at the U.S. Embassy in Accra, Ghana (completion September 30, 2026).

Activity has fluctuated year over year—six awards in 2022, eleven in 2023, six in 2024, nine in 2025, and one in 2026 (as of May)—with combined potential value of $33.2 million across 59 awards. The firm has obligated $12.7 million (38% of potential value) to date. Six awards with ultimate completion dates in the next twenty-four months carry combined potential value of $1.4 million, representing moderate recompete exposure. The firm has no subcontractor footprint; 100% of awards are primes. Place of performance spans worldwide locations for State Department work (Cambodia, Tanzania, Ghana, Egypt, Brazil, Mexico, Dominican Republic, Czech Republic, South Korea, Japan, Hong Kong, Italy, and others) and regional domestic GSA properties under Region 1 jurisdiction.

Architectural design and interior design