WJA PLLC

WJA PLLC, doing business as WJA Design Collaborative, is a Seattle-based small business architecture and engineering firm that operates as a wholly-owned subsidiary of Tetra Tech, Inc., delivering architect-engineer design and construction management services to federal agencies as a prime contractor (99% of awards) across military installations and federal facilities nationwide. The firm competes predominantly full-and-open; where set-asides appear in recent awards, they carry Total Small Business designations on a subset of task orders under existing IDVs rather than characterizing the core pursuit strategy.

WJA Design Collaborative's capability portfolio centers on multi-discipline architect-engineer services spanning Title I, II, and III design phases, construction management, facilities planning, value engineering, and infrastructure assessment. Representative work includes a $2.21 million delivery order from U.S. Air Force Materiel Command's Engineering and Installation Directorate for architectural and engineering design services supporting security forces facility upgrades at Cannon Air Force Base, New Mexico under the Regional A-E Vertical Design Services contract; a $1.79 million firm fixed-price delivery order from Army Engineer District Los Angeles for architect-engineer services at Nellis Air Force Base, Nevada; and a $356 thousand delivery order from Air Combat Command for building infrastructure evaluation, utility survey, planning charrette, and concept drawings at Fairchild Air Force Base, Washington. The firm also delivers specialized work in fish passage and hatchery facility improvements under Department of Interior contracts—for example, a $316.9 thousand Total Small Business task order for supplemental in-scope work on the Alchesay National Fish Hatchery effluent treatment settling system in Arizona, and a $377.4 thousand order for predesign and schematic design services at Haleakala National Park's potable water catchment system in Hawaii.

Customer concentration sits heavily with the Army Corps of Engineers and Air Force. The top five agencies by award count account for 79% of awards: Department of the Air Force Air Mobility Command (41 awards, $40 million combined potential value), Department of the Army Corps of Engineers Engineering District Seattle (36 awards, $492 million combined potential value), Department of the Air Force Air Combat Command (18 awards, $15.2 million combined potential value), Department of the Interior Fish and Wildlife Service (7 awards, $846 thousand), and Department of Agriculture Forest Service Region 6 (6 awards, $6 million). However, the two rankings diverge sharply on dollars: by potential value, Army USACE Seattle District dominates with $492 million across 36 awards, followed by Army USACE Los Angeles District with $250.8 million across just 3 awards (reflecting two major IDV awards), while Air Mobility Command's 41 awards carry only $40 million. This concentration signal is decision-relevant for competitive assessment—the firm has anchored its recent growth on two large USACE IDVs rather than on volume.

WJA Design Collaborative holds six significant parent vehicles. The largest are two Army Corps of Engineers multiple-award IDCs: a $249 million contract with USACE Seattle District for architect-engineer services supporting Military and Interagency and International Services programs (awarded July 2025, runs through July 2032), and a separate $249 million regional A-E vertical design services IDC with Army Engineer District Los Angeles (awarded November 2024, runs through October 2029). The firm also holds a $95 million multiple-award Total Small Business contract with USACE Seattle District for multi-discipline architect-engineer services (awarded February 2025, through February 2032); a $50 million Department of Interior Architecture and Engineering Services MATOC 2022-2027 for design and construction services across Fish and Wildlife Service, National Park Service, Bureau of Land Management, and Forest Service lands (September 2022 through September 2027); a $49 million Air Force Civil Engineer Center multiple-award MATOC for Title I and II services for dormitory facilities worldwide (February 2025 through February 2030); and a $9.9 million Air Force Air Mobility Command single-award Total Small Business contract for multi-discipline architect-engineer services at Fairchild Air Force Base (January 2023 through January 2028). Task-order activity across these vehicles reflects mature pipeline positioning—24 task orders under FA462018DB002, 18 under FA489720D0005, and 17 under W912DW16D0001 represent consistent ordering from a repeating customer base.

Award activity has decelerated in recent years. The portfolio logged 26 awards in 2022, declining to 13 in 2023, holding at 13 in 2024, dropping to 8 in 2025, and recording just 3 awards through mid-2026 (a four-month snapshot). Combined potential value across all 136 awards totals $914.1 million, but only $33.9 million has been obligated (4% of potential value), a profile typical of IDV-heavy portfolios where ceiling values dwarf near-term cash flow. Within the next twenty-four months, 6 awards carrying combined potential value of $3.1 million reach ultimate completion, indicating modest recompete exposure for WJA but manageable churn given the IDV base.

WJA Design Collaborative's work is routed primarily as prime; the source identifies only one sub-award, a March 2024 subcontract to ASRC Federal Gulf State Constructors LLC for base operations support at Vance Air Force Base under FAR 4.1601 administrative purposes authority. The firm operates as a subsidiary of Tetra Tech, which provides access to parent-company resources and bid capacity but does not alter WJA's independent contracting posture or set-aside eligibility. The service delivery is concentrated in the Pacific Northwest and Mountain West (Washington, Idaho, Montana, Nevada, Arizona, Alaska, Hawaii, Oregon) with secondary Air Force presence in defense installations across the continental U.S.—geography consistent with the USACE Seattle and Los Angeles district boundaries and Air Force regional commands that dominate the customer set.