Plexus Scientific Corporation

Plexus Scientific Corporation, headquartered in Alexandria, Virginia, operates as a for-profit professional services firm delivering federal contracts across infrastructure modernization, environmental remediation, knowledge management systems, and IT solutions primarily to civilian agencies, with the vast majority of its footprint structured as a prime contractor (100% of 369 tracked awards). The vendor competes in full-and-open competition rather than under SBA set-asides, though it maintains a Total Small Business designation on the GSA OASIS+ multiple-award GWAC awarded in December 2024 and holds a Total Small Business set-aside on the Army's Environmental Services MATOC.

Plexus Scientific's customer concentration is heavily skewed by a single anchor program: the Department of the Treasury Internal Revenue Service accounts for 157 awards and $9.1 billion in combined potential value—approximately 94% of the vendor's entire federal portfolio. Within that IRS footprint, the vendor delivers custom programming, infrastructure services, and management consulting under two parent vehicles: the GSA Information Technology Schedule 70 (104 task orders, $70 million combined potential value) and the GSA Professional Services Schedule (99 task orders, $1.09 billion combined potential value). The National Institutes of Health, split across its Office of Logistics and Acquisition Operations and other offices, represents the second-largest customer by award count (33 awards, $15.2 million combined potential value) but is significantly smaller in dollar terms. The Department of the Army Installation Management Command Headquarters, with only five awards, anchors $249.4 million in potential value—a stark illustration of the spread between volume and dollars. Other active customers include the National Institute of Standards and Technology (11 awards, $4.9 million), the Department of the Army (13 awards, $25.3 million), and the Health Resources and Services Administration ($100.5 million across three awards, driven by a $100 million single-award Blanket Purchase Agreement for Section 508 digital accessibility compliance support through September 2027).

The vendor's parent vehicles reflect its GSA Schedule footprint and select agency-specific IDIQs. Beyond the IRS-anchored IT Schedule 70 and Professional Services Schedule positions, Plexus Scientific holds an indefinite-delivery contract (75N98023D00003) with NIH's Office of Logistics and Acquisition Operations valued at $5.9 million for knowledge management system development and maintenance across strategic planning and program-tracking modules—32 task orders since January 2023 cover infrastructure improvements, module enhancements for behavioral and social science research, women's health coordination, nursing research tracking, and minority health reporting through December 2026. The vendor also placed a $25 million Army Environmental Services MATOC (Great Lakes and Ohio River Division) in September 2024, and holds the $100 million HRSA Section 508 compliance Blanket Purchase Agreement established in 2022.

Capability framing spans three operational domains grounded in named contract work. IT modernization and infrastructure services dominate by dollar volume and award count: recent IRS work includes custom programming, computing infrastructure provisioning, and data-processing task orders under the Professional Services Schedule. Knowledge management and research-tracking systems anchor the NIH relationship: the vendor develops, maintains, and extends the Strategic Tracking and Reporting Tool (START), a platform consolidating research tracking, strategic coordination, and program-management functions across NIH offices and institutes; recent delivery orders include a $499,998 order for START platform functionality enhancements and a $1 million order for data centralization in support of strategic plan tracking, both awarded in September 2026. Environmental remediation and nuclear services represent a third material capability: the vendor has delivered low-level radioactive waste removal and disposal for NIST, sediment sampling and analysis for Army Corps of Engineers facilities, hazardous-waste disposal, and Section 508 digital accessibility compliance audits. CMMI Level 3 and ISO 9001:2015 certifications recur in contract descriptions.

GSA labor portfolio activity on the Professional Services Schedule encompasses 131 unique labor categories spanning a $48.24–$321.64 hourly-rate spectrum, from Data Entry Clerk I through Senior Executive Consultant roles, with education requirements ranging from associate to master's degree and no security-cleared positions offered. This breadth supports the Professional Services Schedule's role as the vendor's principal vehicle for large-dollar IT program execution.

Activity volume has been volatile. The vendor recorded four awards in 2022, 25 in 2023, 14 in 2024, four in 2025, and 12 in 2026 (through late September). The thirteen awards reaching ultimate completion within the next twenty-four months carry combined potential value of $6.5 million—a modest recompete exposure, overshadowed by the structural concentration risk tied to the IRS footprint. Service Contract Inventory reporting shows $4.5 million in prime-contract invoiced revenue across FY2022–FY2024, with FY2022 at $1.9 million (4.5 FTEs), FY2023 at $709 thousand (2.4 FTEs), and FY2024 at $1.8 million (2.7 FTEs); SCI-reported government-paid rates ranged from $31.92/hr at the 10th percentile to a median of $258.86/hr and $10,532.02/hr at the 90th percentile, reflecting a mix of low-wage administrative and high-value consulting roles. The vendor self-performs across SCI-reportable primes with zero subcontractor hours recorded.

Corporate structure includes Plexus Scientific Corporation as the parent and eleven named subsidiaries, predominantly small business joint ventures: Plexus-Alliant JV, Plexus-Ayuda Solutions JV, Plexus-Bem JV, Plexus-Seres JV, Plexus CDM Smith JV, Plexus-Pika JV, Plexus Auxilio JV, and Plexus Pika II JV. These joint-venture entities do not appear to hold significant independent federal footprints in the source award data; they likely function as teaming vehicles or downstream vehicles for specific programs.

Plexus works with clients to achieve goals while adhering to rigorous CMMI Level 3 and ISO 9001:2000 guidelines. Our services include Environmental Remediation, Facilities, Safety and Occ. Health, and IT development services and software.