WJA PLLC

WJA PLLC, doing business as WJA Design Collaborative, is a Seattle-based architecture and engineering firm operating as a wholly-owned subsidiary of Tetra Tech, Inc., and functions as a prime contractor delivering architect-engineer design, construction management, and facilities planning services across federal military installations and civilian infrastructure projects. The firm competes as a small business on multiple Total Small Business set-aside vehicles while maintaining access to unrestricted competition through parent-company platforms and regional contracts, making it a hybrid player that pursues both set-aside and full-and-open work depending on vehicle eligibility and agency contracting posture.

WJA Design Collaborative's capability footprint centers on multi-discipline architect-engineer services spanning Title I (conceptual and preliminary design), Title II (design development and construction documents), and Title III (construction administration and oversight) phases, with particular depth in facility renovation, infrastructure assessment, structural engineering, mechanical and electrical systems design, facilities planning, and construction management support. Representative contract work includes a $2.207 million firm fixed-price delivery order from Air Force Materiel Command's Engineering and Installation Directorate for security forces facility upgrades at Cannon Air Force Base, New Mexico (February 2026, completion June 2029, under the Regional A-E Vertical Design Services IDIQ); a $417,936 Total Small Business delivery order from the Army Corps of Engineers Seattle District for designer-of-record support during construction of the Consolidated TFI Flight/Base Operations facility at Fairchild Air Force Base, Washington (November 2024, completion November 2026); and a $377,362 Total Small Business delivery order from the Department of Interior Fish and Wildlife Service for predesign and schematic design of a potable water catchment system replacement at Haleakala National Park, Hawaii (July 2024, completion May 2025).

Customer concentration is heavily skewed toward the Army Corps of Engineers and the Air Force. The top five customer agencies by award count account for 79% of WJA's recent prime awards: the Air Force Air Mobility Command leads by frequency (41 awards, $40 million combined potential value), followed by the Army Corps of Engineers Seattle District (36 awards, $492 million combined potential value), the Air Force Air Combat Command (18 awards, $15.2 million), the Department of Interior Fish and Wildlife Service (7 awards, $846 thousand), and the Forest Service Region 6 (6 awards, $6 million). The potential-value rankings diverge dramatically: the Army Corps of Engineers Seattle District anchors 54% of all WJA dollars ($492 million across 36 awards), and when combined with the Army Corps of Engineers Los Angeles District ($250.8 million across 3 awards) and a single $50 million Department of Interior Fish and Wildlife Service regional MATOC, the combined Army/Interior exposure accounts for 96% of WJA's potential-value footprint. This is classic vehicle concentration — a small number of high-ceiling indefinite delivery contracts dominate WJA's financial exposure while task-order ordering occurs across many smaller delivery orders.

WJA holds five named parent vehicles: a $249 million multiple-award Indefinite Delivery Contract with the Army Corps of Engineers Seattle District for architect-engineer services supporting Military and Interagency and International Services programs (18 task orders tracked, completion October 2029); a $95 million Total Small Business multiple-award indefinite delivery contract with the Army Corps of Engineers Seattle District for multi-discipline design services in the Pacific Northwest and Mountain West (completion February 2032); a $249 million multiple-award Regional A-E Vertical Design Services contract with the Army Corps of Engineers Los Angeles District for vertical architect-engineer services (completion October 2029); a $49 million Total Small Business multiple-award MATOC with the Air Force Civil Engineer Center for sustainment, restoration, modernization, and renovation of dormitory facilities worldwide (completion February 2030); and a $50 million Total Small Business multiple-award MATOC with the Department of Interior Fish and Wildlife Service for architectural and engineering services supporting the Great American Outdoors Act across Fish and Wildlife Service, National Park Service, Bureau of Land Management, and Forest Service lands nationwide (completion September 2027). Recent task-order activity patterns show the most granular ordering under the Air Force Air Mobility Command vehicle (24 task orders, $6.2 million combined potential value) and the Air Force Air Mobility Command facility sustainment vehicle (18 task orders, $5.4 million combined potential value), while the Army Corps vehicles generate fewer but substantially larger individual orders.

Activity has declined year over year — 26 awards in 2022 to 4 awards in 2026 through mid-September — but this trajectory reflects the shift from numerous small delivery orders under tactical contracts to fewer large-dollar efforts on higher-ceiling vehicles. Only six awards (combined potential value $3.1 million) reach ultimate completion within the next twenty-four months, creating minimal recompete pressure in the near term; the firm's exposure sits predominantly in multi-year vehicles running through 2027–2032, affording stability but also locking WJA into long-tail positions on existing vehicles until their expiration dates. WJA operates almost entirely as a prime (136 of 137 awards, 99% of portfolio), with one identified subcontract sub-award to Asrc Federal Gulf State Constructors LLC for base operations support at Vance Air Force Base (March 2024). The firm's set-aside posture emphasizes Total Small Business designations on its core Air Force and interior-region Army Corps vehicles while accepting unrestricted competition on the high-value Los Angeles-based Army Corps IDIQ and various task orders outside set-aside constraints. NAICS concentration sits with engineering services (95 awards) and architectural services (41 awards), with the primary service delivery category as architect-and-engineering general landscaping, interior layout, and design work (57 awards).