Veteran-Owned · Minority-Owned · DBE (IL/MO) UEI: NKFAQ2J467L3 · CAGE: 3CX55 Call 618-452-8151
UEI
NKFAQ2J467L3
CAGE code
3CX55
Business type
Veteran-owned, minority-owned small business
Founded
2002

Registered NAICS codes

Selected NAICS codes

CodeDescription
236220Commercial and institutional building construction
236210Industrial building construction
237110Water and sewer line and related structures construction
237120Oil and gas pipeline and related structures construction
237130Power and communication line and related structures construction
237310Highway, street and bridge construction
237990Other heavy and civil engineering construction
423720Plumbing and heating equipment and supplies merchant wholesalers
424990Other miscellaneous nondurable goods merchant wholesalers
332912Fluid power valve and hose fitting manufacturing
212319Other crushed and broken stone mining and quarrying

Size standards and the full registered list are in SAM.gov under UEI NKFAQ2J467L3.

NAICS

What NAICS codes tell a buyer

NAICS codes classify the work a business does, and every federal solicitation is assigned one, which sets the small-business size standard for that procurement. Contracting officers and primes often search SAM.gov and the SBA's Small Business Search by NAICS code when looking for qualified small businesses.

SIS's codes cover building construction (236220, 236210), heavy and civil work (237110, 237120, 237130, 237310, 237990) and supply (423720, 424990, 332912, 212319).

Frequently asked questions

What is SIS's primary construction NAICS code?

236220, Commercial and Institutional Building Construction, with heavy civil work under 237990 and related codes.