WESTON - ER FEDERAL SERVICES, LLC (PA)
Registration and award facts
SAM.gov registration as of
Net obligations recorded since FY2020 under this UEI: $86,474,500 across 4 awards and orders with positive net obligations.
- Net obligations since FY2020
- $86.47M
- $86,474,500under this UEI
- FY2026 obligations
- $0†
- Provisional
- Awards and orders
- 4
- with positive net obligations1 IDV vehicle held
- Latest action
- Oct 31, 2025
- SAM.gov registration
- Active
- Registration expiration date May 27, 2027
Registration
- UEI
- GXFSUP4AZMN4
- CAGE code
- 8BW48
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Feb 4, 2019 (7 years)
- Location
- West Chester, PA
- State of incorporation
- Delaware
- Purpose of registration
- All Awards
SBA certifications
No certification in the SBA profile data.
NAICS codes
Federal contract obligations
Net obligations recorded under this UEI since FY2020. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.
Net obligations by fiscal year of action
- FY2024: $4,864,678
- FY2022: $24,758,210
- FY2021: $56,813,893
- FY2020: $37,719
Total across 4 fiscal years: $86,474,500
Top awarding agencies
- Department of Defense$86,474,500, 100%
Top awarding sub-agencies
- Department of the Army$86,474,500, 100%
Top NAICS by obligations
- 562910Remediation services$86,474,500, 100%
Top product and service codes by obligations
- F999Other environmental services$86,474,500, 100%
† FY2026 obligations (provisional; DoD awards signed after Jul 22, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 22, 2026 are not yet public.
Latest awards and orders
- W9128F21F0164Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
- W9128F20D0050Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the ArmyLatest action
- W9128F21F0134Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
- W9128F22F0030Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
- W9128F20F0300Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
Other contractors in Pennsylvania with primary NAICS 541620
- Tetra Tech, Inc.Pittsburgh, PA
- WSP USA Environment & Infrastructure Inc.Blue Bell, PA
- Baker-Aecom Environmental Compliance JVMoon Township, PA
- Bluestone - Burns & McDonnell JVMalvern, PA
- Tetra Tech, Inc.King of Prussia, PA
- Bluestone Interspec JV, LLCMalvern, PA
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI GXFSUP4AZMN4. GovChime does not check exclusions.
Key Performance Statistics
View obligations by year, agencies and performance history
Capabilities
NAICS Codes
See all industry codes with contract counts
Product/Service Codes
As of . Source: SAM.gov Goods & Services.
No PSC codes reported
Certifications
Business Types
Contracts
Explore federal contract awards with detailed transaction history
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for WESTON - ER FEDERAL SERVICES, LLC lists a physical address and a separate mailing address, along with 4 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
1400 WESTON WAY
WEST CHESTER, PA, 19380
USA
Mailing Address
1400 WESTON WAY
WEST CHESTER, PA, 19380
USA
Government Business Contact
Andrew Leister
1400 Weston Way
West Chester, PA, 19380
USA
Electronic Business Contact
Andrew Leister
1400 Weston Way
West Chester, PA, 19380
USA
Government Business Alternate Contact
Cathy Valocchi
1400 Weston Way
West Chester, PA, 19380
USA
Electronic Business Alternate Contact
Cathy Valocchi
1400 Weston Way
West Chester, PA, 19380
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
WESTON - ER FEDERAL SERVICES, LLC has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires May 27, 2027.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
SAM.gov registration reports no active exclusion
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Registered for disaster relief contracting
Bonding Information
No bonding information provided
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govDate Founded
Initial Registration
Last Update
Registration Activation
Registration Expiration
Fiscal Year End
State of Incorporation
Country of Incorporation
Congressional District