Federal contractor profile
CLIENT/SERVER SOFTWARE SOLUTIONS INC
UEI CMSHG28J2L78CAGE 1HYP0Company website ↗
Active
Woman Owned Small BusinessWoman Owned BusinessVeteran Owned BusinessService Disabled Veteran Owned BusinessSmall Business
Overview
- Legal name
- CLIENT/SERVER SOFTWARE SOLUTIONS INC
- Also known as
- CONSTELLATION WEST
- Registered location
- VIENNA, VA, USA
- Website
- Company website ↗
- Primary NAICS
- 541330 — Engineering Services
- Latest award activity
- Aug 11, 2026
Read company summary
CLIENT/SERVER SOFTWARE SOLUTIONS INC is associated with UEI CMSHG28J2L78 and CAGE 1HYP0 in public federal records. AcornBids currently links 16 prime awards totaling $77.7M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Engineering Services; Computer Systems Design Services; Other Computer Related Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541330 (Engineering Services). Its public SAM.gov registration lists VIENNA, VA, USA.
At a glance
Lifetime prime obligations$77.7M
Prime awards16
Awards with future end dates10
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Oct 8, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- CLIENT/SERVER SOFTWARE SOLUTIONS INC
- Doing business as
- CONSTELLATION WEST
- UEI
- CMSHG28J2L78
- CAGE
- 1HYP0
- Registered address
- 8230 OLD COURTHOUSE RD STE 220, VIENNA, VA, 22182, USA
- Registration status
- Active
- Primary NAICS
- 541330 — Engineering Services
- SAM activation
- May 13, 2026
- Initial registration
- Aug 12, 2001
- Entity start
- Jul 22, 1997
- SAM updated
- May 13, 2026
- Registration expires
- May 11, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- NE, USA
Research brief
Source facts
- Loaded prime-award records link 16 awards and $77,671,903 in reported obligations to this legal entity. Source
- Recorded awards include Engineering Services (NAICS 541330); this classification is not proof of every company capability. Source
- An example award describes: AUTOMATED COLLECTIONS SYSTEM (ACS) Source
Federal award analysis
Net transaction obligations by federal fiscal period.
Selected transaction obligations$51.8M
Prime contracts
Reported transaction obligations by federal fiscal period; includes deobligations. Missing transactions are not estimated. Coverage: 16 of 16 selected awards. Select a period to explore its awards.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 2032H522F00081AUTOMATED COLLECTIONS SYSTEM (ACS) | Department of the Treasury | $6.2M | Nov 28, 2021 | Nov 27, 2026 |
| FA460022F0031J81 CAMPAIGN MODELING AND EMERGING TECHNOLOGY SUPPORT. THE CONTRACTOR SHALL PROVIDE A&AS SUPPORT FOR J81 TO FULFILL ITS MISSION TO DEVELOP &EXECUTE AN INTEGRATED STRATEGIC DESIGN… | Department of Defense | $3.6M | Mar 18, 2022 | May 31, 2027 |
| 2032H523F00365PATCH AUTOMATION SUPPORT | Department of the Treasury | $989.6K | Jul 17, 2023 | Jul 16, 2025 |
| FA460023F0006USAMS FOPR 23-003 NUCLEAR COMMAND, CONTROL, AND COMMUNICATION (NC3) ENTERPRISE CENTER MISSION SUPPORT | Department of Defense | $32.0M | Nov 30, 2022 | Nov 30, 2027 |
| FA460022F0062NUCLEAR PLANNING AND EXECUTION SYSTEM (NPES) OPERATIONS, TECHNICAL ADVICE, OPERATIONS SUPPORT, AND OPERATIONAL PLAN (OPLAN) AND NUCLEAR COMMAND, CONTROL, AND COMMUNICATIONS (NC3)… | Department of Defense | $1.5M | Jun 22, 2022 | Jun 30, 2027 |
| FA460022F0042SPECIAL ACCESS PROGRAM (SAP) SECURITY AND SUPPORT FOR USSTRATCOM/J39 | Department of Defense | $4.5M | Apr 15, 2022 | Apr 22, 2027 |
| FA460022F0053NAOC REQUIRES ADVISORY AND ASSISTANCE SERVICES (A&AS) TO PLAN, DEVELOP, EXECUTE, ANALYZE AND ASSESS THE NAOC ATP. THE CONTRACTOR SHALL REVIEW APPROPRIATE CJCS EXERCISE AND… | Department of Defense | $2.7M | May 25, 2022 | Nov 30, 2026 |
| FA460025F0002FOPR 25-002 NATIONAL AIRBORNE OPERATIONS CENTER (NAOC) J3T SPECIAL ACCESS PROGRAM (SAP) SECURITY AND SUPPORT FOR USSTRATCOM/NAOC | Department of Defense | $441.1K | Dec 19, 2024 | Dec 18, 2026 |
| FA460022F0012(FOPR) #22-002, GLOBAL NUCLEAR COMMAND CONTROL SUPPORT AND COMMUNICATION (NC3) ENTERPRISE CENTER | Department of Defense | $2.7M | Jan 25, 2022 | Jan 31, 2027 |
| FA460022F0015PROVIDE ADVISORY AND ASSISTANCE SERVICES TO ACQUIRE CYBERSECURITY PROFESSIONALS AS REQUIRED THROUGHOUT THE SYSTEMS DEVELOPMENT LIFECYCLE. | Department of Defense | $1.6M | Feb 9, 2022 | Feb 13, 2027 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | May 13, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Aug 12, 2001 |
| Entity start | Jul 22, 1997 |
Registration classifications: Woman Owned Small Business, Woman Owned Business, Veteran Owned Business, Service Disabled Veteran Owned Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 336611 — Ship Building and Repairing | Not reported |
| 488190 — Other Support Activities for Air Transportation | Not reported |
| 488999 — All Other Support Activities for Transportation | Not reported |
| 541330 — Engineering Services | Not reported |
| 541360 — Geophysical Surveying and Mapping Services | Not reported |
| 541511 — Custom Computer Programming Services | Not reported |
| 541512 — Computer Systems Design Services | Not reported |
| 541513 — Computer Facilities Management Services | Not reported |
| 541519 — Other Computer Related Services | Not reported |
| 541611 — Administrative Management and General Management Consulting Services | Not reported |
| 541612 — Human Resources Consulting Services | Not reported |
| 541614 — Process, Physical Distribution, and Logistics Consulting Services | Not reported |
| 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | Not reported |
| 541990 — All Other Professional, Scientific, and Technical Services | Not reported |
| 561499 — All Other Business Support Services | Not reported |
| 611512 — Flight Training | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| LISA N WOLFORD | Government business | Contact method not published | SAM registration | Not available |
| CHERYL A REUTEMANN | Alternate government business | Contact method not published | SAM registration | Not available |
| CHRISTINE F MOORE | Electronic business | Contact method not published | SAM registration | Not available |
| ANDREW SCHULZ | Alternate electronic business | Contact method not published | SAM registration | Not available |
| Cheryl Reutemann | Contractor contract manager | contracts@constellationwest.us | Source | Oct 1, 2026 |
| Michaella Macklin | Contractor program manager | oasispluspmo@constellationwest.com | Source | Oct 1, 2026 |
| Cheryl Reutemann | Contractor contract manager | creutemann@constellationwest.com | Source | Oct 1, 2026 |
| Michaella Macklin | Contractor program manager | oasispluspmo@constellationwest.com | Source | Oct 1, 2026 |
| Cheryl Reutemann | Contractor contract manager | contracts@constellationwest.us | Source | Oct 1, 2026 |
| Michaella Macklin | Contractor program manager | oasispluspmo@constellationwest.com | Source | Oct 1, 2026 |
| Cheryl Reutemann | Contractor contract manager | contracts@constellationwest.us | Source | Oct 1, 2026 |
| Michaella Macklin | Contractor program manager | oasispluspmo@constellationwest.com | Source | Oct 1, 2026 |
Registered industries
- 336611 — Ship Building and Repairing
- 488190 — Other Support Activities for Air Transportation
- 488999 — All Other Support Activities for Transportation
- 541330 — Engineering Services
- 541360 — Geophysical Surveying and Mapping Services
- 541511 — Custom Computer Programming Services
- 541512 — Computer Systems Design Services
- 541513 — Computer Facilities Management Services
- 541519 — Other Computer Related Services
- 541611 — Administrative Management and General Management Consulting Services
- 541612 — Human Resources Consulting Services
- 541614 — Process, Physical Distribution, and Logistics Consulting Services
- 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541990 — All Other Professional, Scientific, and Technical Services
- 561499 — All Other Business Support Services
- 611512 — Flight Training
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
Contract vehicle holdings
Reported holders; a parent award identifier alone is not proof of a current vehicle seat.
| Vehicle | Reported status | Ordering ends | Evidence |
|---|---|---|---|
| OASIS+SB — 47QRCA25DS394 | active | Not available | Source |
| OASIS+UR — 47QRCA25DU611 | active | Not available | Source |
| OASIS+VO — 47QRCA24DV096 | active | Not available | Source |
| OASIS+WO — 47QRCA24DW049 | active | Not available | Source |
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About CLIENT/SERVER SOFTWARE SOLUTIONS INC
What products and services appear in its federal awards?
Recorded award industries: 541330 — Engineering Services; 541512 — Computer Systems Design Services; 541519 — Other Computer Related Services.
Recorded products and services: R425 — Engineering and Technical Services; DA01 — Support services for activities involved with application development and support to include analysis, design, development, coding, testing, and release packaging, as well as support of off-the-shelf Business Applications.; R408 — Program Management/Support Services.
Examples from recent award records:
- AUTOMATED COLLECTIONS SYSTEM (ACS)
- J81 CAMPAIGN MODELING AND EMERGING TECHNOLOGY SUPPORT. THE CONTRACTOR SHALL PROVIDE A&AS SUPPORT FOR J81 TO FULFILL ITS MISSION TO DEVELOP &EXECUTE AN INTEGRATED STRATEGIC DESIGN…
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
8230 OLD COURTHOUSE RD STE 220, VIENNA, Virginia 22182, United States
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
541330 — Engineering Services.
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
Department of Defense; Department of the Treasury.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.
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