Client / Server Software Solutions Inc.

Client / Server Software Solutions Inc., doing business as Constellation West, is a Women-Owned Small Business and Service-Disabled Veteran-Owned Small Business based in Vienna, Virginia, that delivers IT operations, system modernization, cybersecurity, and advisory services to federal agencies as a prime contractor (92% of recent awards) under both full-and-open and set-aside vehicles. The vendor competes across multiple SBA designations — its primary certifications anchor most work to WOSB and SDVOSB set-asides, though it also holds VOSB status — and operates under a mixed teaming model, performing roughly 80 percent of prime contract labor in-house and engaging subcontractors for approximately 20 percent of effort.

Constellation West's customer concentration is heavily skewed toward two civilian agencies. The Department of the Treasury's Internal Revenue Service drives 37 awards (23 percent of the prime footprint) valued at $12.14 billion in combined potential value, focused on Microsoft 365 program oversight, Automated Collections System web operations, patch automation, and security policy support delivered under the Veterans Technology Services 2 GWAC and firm fixed-price delivery orders. The Air Force Air Combat Command ranks second by award count with 35 awards ($1.05 billion combined potential value) but represents a distinct mission set: the vendor holds ten task orders under the OASIS Small Business IDIQ and additional orders under the USSTRATCOM Systems and Mission Support III vehicle, delivering nuclear command-control-and-communications enterprise center mission support, deterrence analysis and planning, special access program security, personnel recovery mission software operations, and campaign modeling to U.S. Strategic Command at Offutt Air Force Base, Nebraska. The General Services Administration ranks third in potential value ($6.11 billion across 11 awards) driven by two recently awarded government-wide vehicle positions: the SEWP VI GWAC awarded November 1, 2026, and the OASIS+ Unrestricted IDIQ awarded April 15, 2025, both carrying placeholder ceiling structures that represent no specified dollar cap. GSA's Federal Acquisition Service also manages Constellation West's positions on the OASIS+ Total Small Business set-aside IDIQ (awarded December 19, 2024), OASIS+ Service-Disabled Veteran-Owned Small Business IDIQ (awarded September 30, 2024), and OASIS+ Women-Owned Small Business IDIQ (awarded September 30, 2024), as well as the Federal Supply Schedule contract (awarded March 26, 2025). The Department of Veterans Affairs Technology Acquisition Center Austin and the Department of the Navy round out the top five customer agencies.

The vendor's capability portfolio spans IT infrastructure operations, security engineering, systems modernization, and mission-focused advisory services grounded in concrete work across IRS and Air Force platforms. On the IRS side, the $6.8 million Microsoft 365 core program oversight and support delivery order (awarded September 30, 2023, under VETS 2, extending through September 2025) demonstrates enterprise-level IT program management; the $3.14 million API Common Services delivery order issued September 17, 2026, by the IRS under the GSA Multiple Award Schedule with ceiling through November 2028 signals application modernization and secure communications work; and the $1.9 million security policy support services order (awarded June 16, 2022, under VETS 2, since completed) shows cybersecurity organizational support. On the Air Force side, the $75.3 million Nuclear Command, Control, and Communications Enterprise Center mission support delivery order (awarded November 30, 2022, under OASIS SB, extending through November 2027) anchors the vendor's strategic defense footprint; the $10.2 million J81 campaign modeling and emerging technology support order (awarded March 18, 2022, under OASIS SB, extending through May 2027) and the $8.6 million deterrence analysis and planning support order (awarded April 25, 2022, under OASIS SB, extending through April 2027) show advanced planning and analysis work; the $6.3 million special access program security and support order for USSTRATCOM/J39 (awarded April 15, 2022, under OASIS SB, extending through April 2027) and related special access program support orders for USSTRATCOM/NAOC J3T (awarded December 19, 2024, under OASIS SB, extending through December 2029) signal classified mission operations support. The $2.9 million missile operations support delivery order (awarded September 29, 2023, under OASIS SB, extending through September 2028) and the $2.7 million DISA Global Command and Control System–Joint cybersecurity acquisition support order (awarded February 9, 2022, under OASIS SB, extending through February 2027) round out the defense advisory work.

Constellation West holds positions on five major federal vehicle platforms. The OASIS Small Business IDIQ (placed before 2022) accounts for ten task orders carrying $117.9 million in combined potential value, primarily supporting Air Force Air Combat Command and USSTRATCOM missions. The USSTRATCOM Systems and Mission Support III vehicle (details not separately listed but referenced in the top parent vehicles) carries 22 task orders valued at $140.5 million, representing the vendor's largest single-vehicle footprint. The GSA Multiple Award Schedule holds 16 task orders with $106.3 million in combined potential value, supporting IRS delivery orders and other civilian agency work. The Veterans Technology Services 2 GWAC (awarded before 2022, managed by GSA) supports ten task orders valued at $24.6 million, focused on IRS IT modernization and support services. The newly awarded SEWP VI GWAC (November 1, 2026, partial small business set-aside and total small business set-aside structures, both with $20 billion ceilings through October 2036), the OASIS+ Unrestricted IDIQ (April 15, 2025, no set-aside, multi-billion-dollar ceiling), the OASIS+ Total Small Business IDIQ (December 19, 2024, $2,500 contract access fee, 0.15% CAF), the OASIS+ SDVOSB IDIQ (September 30, 2024), and the OASIS+ Women-Owned Small Business IDIQ (September 30, 2024) represent new government-wide ordering vehicles with expansive scope across IT product and service solutions, communication and audiovisual capabilities, and professional services domains. The Federal Supply Schedule contract (March 26, 2025, through March 2030) structures 32 IT labor categories ranging from help desk support at $46.28 per hour through senior IT business subject matter expert services at $185.08 per hour, with all roles requiring a bachelor's degree and none offering security-cleared positions.

Activity has been uneven across the measurement window. Awards per year show 9 in 2022, 4 in 2023, 10 in 2024, 4 in 2025, and 4 in 2026 through the most recent SEWP VI award dated November 1, 2026. Eleven awards carrying combined potential value of $123 million reach ultimate completion within the next twenty-four months, creating recompete exposure across the IRS Automated Collections System work (extending through November 2026), patch automation support (extending through July 2027), and multiple Air Force OASIS SB delivery orders. SCI-reported prime-contract invoicing totaled $35.4 million across fiscal years 2022 through 2025, with FY2024 peaking at $14.1 million (though FTE count for that fiscal year appears anomalous in the dataset at 1,841 FTEs). SCI activity shows $9.8 million invoiced in FY2025 across 54.0 FTEs, down from $14.1 million in FY2024 and up from $7.6 million in FY2023, with government-paid hourly rates ranging from a 10th percentile of $17.55 per hour to a median of $139.29 per hour and a 90th percentile of $327.86 per hour on prime work. Across SCI-reportable prime contracts, subcontractors performed approximately 20 percent of total contractor hours, with 17 named subcontractors engaged over the fiscal-year period.

Constellation West subcontracts to larger defense integrators on a smaller scale. The vendor delivers engineering services and portal services work to Accenture Federal Services LLC on the Integrated Enterprise Portals bridge procurement and task order 0023 work (nine sub-awards from January 2024 through August 2026), and provides engineering services at journeyman, senior, and subject-matter-expert skill levels to Peraton Inc. on the Information Advantage Enterprise program (May 2, 2025). These relationships indicate the vendor's role as a specialist labor provider and technical solution contributor to broader federal programs rather than as a systems integrator or large-scale prime.

We maintain highly qualified, experienced IT staff to provide the most optimal solutions using appropriate emerging technologies. Proven record for successfully providing IT systems, networking, security, and software solutions to a variety of clients.