Stone Group Architects, Inc.

Stone Group Architects, Inc., a Service-Disabled Veteran-Owned Small Business (SDVOSB) headquartered in Sioux Falls, South Dakota, provides architectural and engineering design services for federal healthcare facility modernization and infrastructure projects as a prime contractor across the Department of Veterans Affairs, the Department of the Interior, the U.S. Air Force, and the Indian Health Service. The company is a self-certified small disadvantaged business, veteran-owned Subchapter S corporation with three named subsidiaries—M Plus Stone HFG LLC, Stone HFG Architecture LLC, and Stone HFG Architecture JV LLC—all carrying SDVOSB and veteran-owned designations. Stone Group competes predominantly under SDVOSB set-asides and Total Small Business designations; across its recent award portfolio, SDVOSB and small-business set-asides characterize the overwhelming majority of prime work.

Stone Group's capability portfolio centers on architectural and engineering design services for VA medical center renovations, healthcare facility modernization, and specialized infrastructure work. Representative work includes a $924.7 million task order from Veterans Integrated Service Network 12 for Madison Master Plan design at the William S. Middleton VA Hospital (awarded September 2024); a $689 thousand order for asbestos abatement design at the Tomah VA Medical Center (awarded June 2023); a $587.8 thousand delivery order from Air Force Global Strike Command for munitions consolidation renovation investigation and design at Ellsworth Air Force Base in South Dakota (awarded April 2025); a $10 million IHS nationwide architect-engineering IDIQ awarded March 2024 for Indian Health Service facilities design; and a $50 million Department of Interior Fish and Wildlife Service MATOC for design services across lands managed by Fish and Wildlife Service, National Park Service, Bureau of Land Management, and Forest Service (awarded September 2022). Across primary NAICS framing, 45 awards are coded Architectural Services (541310) and 35 Engineering Services (541330). Primary PSC coding reflects Architect and Engineering—Construction: Hospitals and Infirmaries (64 awards).

Customer concentration is heavily weighted toward the VA. The Department of Veterans Affairs Veterans Health Administration Veterans Integrated Service Network 23 accounts for 31 awards ($32.6 million combined potential value), and Veterans Integrated Service Network 12 accounts for 30 awards ($18.4 million combined potential value), together representing 76% of awards by count and 56% of dollar value. However, potential-value ranking diverges sharply at the top: the Department of the Interior Fish and Wildlife Service Region 9 Headquarters anchors $50 million from a single award—the MATOC vehicle—which represents 41% of total combined potential value across the portfolio but only 1 award by count. Indian Health Service contributes 3 awards ($10.5 million), and Air Force Global Strike Command contributes 4 awards ($5.1 million). Distinct customer agencies number 10, with the five largest covering 97% of combined potential value.

Stone Group holds position on five primary parent IDIQs. The William S. Middleton VA Hospital base IDIQ (36C26319D0058) generates 18 task orders worth $8.5 million combined potential value. The Tomah VA Medical Center IDIQ (36C25222D0057) generates 19 task orders worth $4.7 million. The $5 million SDVOSB single-award IDIQ with VISN 12 for Middleton design services (awarded September 2022, through September 2027) and the $6 million SDVOSB single-award IDIQ for Tomah design services (awarded October 2022, through September 2027) provide sustained task-order authority. The $10 million Total Small Business single-award IHS IDIQ (awarded March 2024, through March 2027) supports nationwide architect-engineering for Indian Health Service facilities. The $4.5 million multiple-award indefinite delivery contract with Air Force Global Strike Command (awarded September 2023, through September 2028) funds design and investigation services.

Activity trajectory shows growth through 2023, then contraction. Awards per year ran 16 in 2022, peaked at 21 in 2023, declined to 12 in 2024, and dropped sharply to 7 in 2025 and 6 in 2026 (through early June). Combined potential value across all 80 awards stands at $120.7 million, with $24 million obligated (20% of potential). Within the next twenty-four months, 20 awards (combined potential value $8.2 million) reach ultimate completion and face recompete exposure.

Stone Group operates as a 100% prime contractor; across recent awards, zero sub-awards appear in the portfolio. On Service Contract Inventory-reportable prime contracts, the vendor employed an average sub-hours share of 18% across 15 named subcontractors, indicating selective subcontractor engagement for specialized labor on design-intensive work. SCI-reported invoicing totaled $3.9 million across FY2023–FY2024 (FY2023: $2 million across 3.1 contract-level FTEs; FY2024: $1.9 million across 1.1 contract-level FTEs), reflecting the project-based nature of architectural design services. Government-paid hourly rates on prime SCI contracts ran a median of $185.95/hr, with senior labor reaching $413.20/hr at the 90th percentile. SCI data cover contracts above the $150 thousand reporting threshold and exclude goods, products, and non-federal revenue; these figures represent a partial view of federal services activity and a smaller subset of total enterprise revenue.

Stone Group Architects, Inc. offers a wide range of architectural and planning services. We are experienced with numerous delivery methods including Design Bid/Build, Design Build, CM at risk and limited service projects. We utilize state-of-the-art Building Information Modeling (BIM) technology to create high-performance, cost-effective facilities. Stone Group's mission is to listen to our clients and ask the right questions that help us to create the best solutions for those who will ultimately use the spaces we design. Clients to date include both private and public sector health care, education, residential, multi-family residential, industrial and retail industries. Currently, the firm is designated and verified as a Service Disabled Veteran Owned Small Business by the U. S. Department of Veteran's Affairs and CVE.