Underground Systems Inc.

Bethel, CT Doing business as USI

UEI: S4HMKSLDW321
CAGE: 4CEK8
Primary NAICS: 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
SAM.gov registration: Active through Aug 5, 2027

Company facts

Self-certified in SAM.gov: For Profit Organization

Subchapter S Corporation
Entity structure: Corporate Entity (Not Tax Exempt)
Other NAICS codes in SAM.gov: 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
SAM.gov registration date: Mar 22, 2006
Physical address: 3 Trowbridge Dr, Bethel, CT 06801, USA
Website: usi-power.com

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Aug 6, 2026.

Award	Agency	Obligated	Awarded
Inspect static cable oil system W9127S07P0030	ENDIST Little Rock (USACE)	$13,838	Nov 21, 2006
Definitive Contract DNA00187C0202-0ZD30198710D0061DNA00187C0202	Defense Threat Reduction Agency	$65,000	Oct 15, 1987

Award	Agency	Obligated	Awarded
See schedule DESC0012070	Office of Science	$2,055,821	Jun 9, 2014
Phase III xlerator program - low cost real time monitoring system for overhead transmission - multi utility multi… DEOE0000532	Department of Energy	$502,021	Sep 27, 2010
New phase i sbir; title: underground cable advanced diagnostics; PI: frank hoppe DESC0004280	Office of Science	$2,281,012	Aug 11, 2010
New sbir phase i 2009: title: adaptive predictive algorithms for renewables integration; PI: larry fish DESC0001228	Department of Energy	$2,191,902	Sep 9, 2009
Low cost sensors for real time monitoring of overhead transmission lines FG0205ER84176	Department of Energy	$844,516	Jul 15, 2005

Yes. Underground Systems Inc.'s SAM.gov registration is active through August 5, 2027.

Underground Systems Inc.'s most recent federal grant award is See schedule (DESC0012070), from Office of Science, on June 9, 2014.

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