GovChime
UEI: YGBCMSLKYG68 • CAGE: 790M3

GEO-EX SUBSURFACE EXPLORATION (CA)

DBA: GEO EX SUBSURFACE EXPLORATION

Registration and award facts

SAM.gov registration as of

Net obligations since FY2016
$3.52M
$3,522,960under this UEI
FY2026 obligations
-$217.74K
-$217,742Provisional
Awards and orders
13
with positive net obligations2 IDV vehicles held
Latest action
Apr 22, 2026
SAM.gov registration
Active
Registration expiration date Jan 15, 2027

Registration

Doing business as
GEO EX SUBSURFACE EXPLORATION
Entity structure
Corporate Entity (Not Tax Exempt)
Business start date
May 20, 2012 (14 years)
Location
Dixon, CA
State of incorporation
California

† FY2026 obligations (provisional; DoD awards signed after Jul 25, 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 25, 2026 are not yet public.

All federal contractors in CaliforniaHow these figures are built

Source: SAM.gov entity registration and FPDS contract actions recorded under UEI YGBCMSLKYG68. GovChime does not check exclusions.

Performance

Net obligations recorded under this UEI since FY2016. 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

  • FY2026: -$217,742 (de-obligation) (provisional)
  • FY2025: $26,430
  • FY2024: $2,854,508
  • FY2021: $269,615
  • FY2020: $396,516
  • FY2019: $71,578
  • FY2017: $43,440
  • FY2016: $78,615

Total across 8 fiscal years: $3,522,960

Net de-obligation in that fiscal year (obligations withdrawn).

Top awarding agencies

Top awarding sub-agencies

Top NAICS by obligations

Top product and service codes by obligations

  • R404Support- professional: land surveys-cadastral (non-construction)$2,000,845, 56.8%
  • C213Architect and engineering- general: inspection (non-construction)$635,921, 18.1%
  • F015Natural resources/conservation- well drilling/exploratory$471,079, 13.4%
  • 3820Mining, rock drilling, earth boring, and related equipment$269,615, 7.7%
  • R425Support- professional: engineering/technical$119,070, 3.4%

Capabilities

NAICS codes

Small: small business for that NAICS, self-certified in SAM.gov registration.

SBA certifications

No certification in the SBA profile data.

Product and service codes (PSC)

  • F015Natural Resources & Conservation
  • Y1LBConstruction of Structures and Facilities
  • Z2LBMaintenance, Repair & Alteration of Real Property

Federal Capability Statement

Geo-Ex Subsurface Exploration is a registered California Small Business Enterprise (Micro Business), providing drilling services to the geotechnical, environmental and construction industries.For more information visit our website at http://www.geoexsubsurface.com/

Capabilities & Services

Highway
Street
and Bridge Construction

Contracts

Latest awards and orders

  1. W912PL24F0063Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  2. W912P725CA024Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
  3. W9123824F0081Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  4. W9123824F0036Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  5. W9123824F0010Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  6. W9123823D0005Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the ArmyLatest action
  7. W9123821F0102Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  8. W9123820F0095Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  9. W9123820F0091Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the ArmyLatest action
  10. W9123816D0026Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the ArmyLatest action

Contact Info

As of . Source: SAM.gov Points of Contact.

SAM.gov registration for GEO-EX SUBSURFACE EXPLORATION lists a physical address and a separate mailing address, along with 2 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

1510 MADERA DR

DIXON, CA, 95620

USA

Mailing Address

1510 MADERA DRIVE

DIXON, CA, 95620

USA

Government Business Contact

THOMAS SCOTT

PRESIDENT

1510 MADERA DRIVE

DIXON, CA, 95620

USA

Government Business Alternate Contact

THOMAS SCOTT

PRESIDENT

1510 MADERA DRIVE

DIXON, CA, 95620

USA

Additional Details

As of . Source: SAM.gov Entity Registration.

GEO-EX SUBSURFACE EXPLORATION has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires January 15, 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 responses

Suspension/Debarment Status

SAM.gov registration reports no active exclusion

Public Display

Entity information is publicly displayed

Disaster Relief Registry

Not registered for disaster relief

Bonding Information

No bonding information provided

EDI

Not declared in SAM.gov

Business Structure

Source: SAM.gov
Profit Structure:For Profit Organization

Registration Details

Source: SAM.gov

Initial Registration

Oct 14, 2014

Last Update

Jan 19, 2026

Registration Activation

Active — Jan 19, 2026

Fiscal Year End

1231

Country of Incorporation

USA

Congressional District

04

Other contractors in California with primary NAICS 237310