SII INC

Overview

SII INC is a U.S. government contractor based in CLEAR BROOK, VA. The company is registered with the federal government under Unique Entity ID MMRKLNN6PLB3 and CAGE code 59990. Its primary industry classification is NAICS 325211. SII INC has 3 federal awards on record, totaling approximately $95,413. Its current SAM.gov registration status is Active.

Capabilities

SII, Inc. is a mission-critical defense contractor with over two decades of unmatched performance in the engineering and production of specialized polymer materials. We serve as a vital link in the U.S. Navy’s submarine supply chain, providing the acoustic damping and structural reliability essential for sub-surface superiority. As we enter our next phase of growth, SII is realigning its operations to scale alongside the Navy’s increased procurement tempo, ensuring that our proprietary technology continues to define the standard for silent operations. In an era of increasing undersea competition, acoustic superiority is the primary determinant of survivability. SII, Inc. provides the United States Navy and its Tier 1 partners with the specialized material science required to maintain a stealth advantage in contested waters.

NAICS Codes primary: 325211

Registration & Entity Details

Location

CLEAR BROOK, VA 22624

Unique Entity ID (UEI)

MMRKLNN6PLB3

CAGE Code

59990

SAM Registration

Active

Registered

Dec 4, 2006

Registration Expires

Mar 10, 2027

Legal Structure

2L

Congressional District

06

Website

NO WEBSITE

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