Mills & Schnoering Architects LLC

Mills & Schnoering Architects LLC, a Princeton, New Jersey-based architecture and historic preservation firm, operates as a prime contractor providing multidisciplinary architectural, engineering, and facility assessment services to 21 federal civilian agencies, predominantly under full-and-open competition with occasional total small business set-asides. The firm is structured as a limited liability company and competes entirely as a prime (100% of 146 recent awards), with no subcontractor activity reported.

Customer concentration is pronounced and split across two tiers. The top customer by award count is the Department of the Interior National Park Service National Office (44 awards, $19.6 million combined potential value), followed by GSA Public Buildings Service Region 3 (26 awards, $12.8 million) and NPS Northeast Region (13 awards, $1.4 million). However, by potential value, GSA Public Buildings Service Region 2 anchors the portfolio at $26.4 million across ten awards—a gap driven by larger individual delivery orders—while NPS National Office and GSA Region 3 rank second and third. These five customers account for 87% of combined potential value. The tension between volume and dollars signals that Mills & Schnoering wins many modest federal facility studies and design tasks but reserves its largest project engagements for GSA Region 2's infrastructure modernization work.

Mills & Schnoering holds multiple indefinite delivery vehicles. The top vehicles by task-order volume are GSA indefinite delivery contract GS03P16DXD7012 (49 task orders, $7.5 million combined potential value) and NPS indefinite delivery contract INP15PC00042 (47 task orders, $9.6 million), followed by GSA contract 47PC0321D0001 (12 task orders, $2.1 million) and additional GSA and NPS IDIQs. A Smithsonian Institution single-award IDIQ with a stated potential value of $1 (placeholder ceiling) has generated over $3 million in task orders and remains active through February 2025.

Capability scope centers on architectural design, engineering services, facility assessments, and historic preservation support. Representative recent work includes a $1.18 million Total Small Business delivery order from the Smithsonian Institution (January 2026) to analyze Central Utility Plant options with completion by September 2026; a $657 thousand delivery order for renovation of Ripley Lecture Hall at the Smithsonian (April 2024); a $471 thousand order for Lelawi Theater renovation design at the National Museum of the American Indian (September 2025); a $500 thousand delivery order investigating and mitigating building envelope stains at NMAI (August 2024); a $332 thousand GSA Region 2 order for architectural and engineering services supporting the National Labor Relations Board consolidation project in Newark, New Jersey (April 2022); and a $469 thousand National Park Service delivery order for Clara Barton National Historic Site rehabilitation design services (May 2023). Work spans courthouse hardening, HVAC and chiller replacement design, water infiltration investigation, accessibility improvements to historic structures, and building system studies across federal facilities in the Northeast, Puerto Rico, and the U.S. Virgin Islands.

Award activity shows a marked decline. The firm received ten awards in 2022, eleven in 2023, four in 2024, two in 2025, and one in 2026 to date. Only three awards totaling $1.5 million in combined potential value reach ultimate completion in the next twenty-four months, limiting near-term recompete exposure. The NAICS profile is heavily weighted to Architectural Services (142 of 146 awards), with three engineering-services awards and one construction award. The PSC coding mirrors this: 113 awards fall under Architect and Engineering–General (Landscaping, Interior Layout, and Designing), with fourteen awards in Architect and Engineering–Construction (Office Buildings) and six in Architect and Engineering–Construction (Museums and Exhibition Buildings).

Service Contract Inventory data captures only a partial view of federal engagement above the $150,000 reporting threshold. SCI-reportable invoiced amount totaled $1.7 million across three fiscal years: $869 thousand in FY2022 (1.4 FTEs), $553 thousand in FY2023 (0.9 FTEs), and $284 thousand in FY2024 (0.4 FTEs), showing a declining FTE trajectory. On federal services contracts captured in SCI, median government-paid rates ran around $260.74 per hour, with the 10th percentile at $152.44 per hour and the 90th percentile at $433.29 per hour. Mills & Schnoering performs no subcontract hours on SCI-reportable primes (0% sub-hours share), building delivery entirely with in-house staff.