Software Development Company

Contractor Support Services Inc.

Woman-owned US small business providing management, technical and professional support services to government and industry

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TrustList summary

Contractor Support Services Inc., known as CSSI, is an American contractor that supplies management, technical and professional support staff to government agencies and commercial customers. Since 1993 it has placed and managed trained personnel who carry out assignments to each customer's own requirements, both in the United States and abroad.

What Contractor Support Services Inc. offers

Compliance inspections and audits: inspection and audit work against customer and regulatory requirements.
Quality assurance and quality control: staff to run quality programmes on customer contracts.
Professional and technical support: experienced professionals provided and managed for defined assignments.
Supply chain and logistics: support for logistics and supply chain operations.

Customers and markets

CSSI serves government agencies and commercial customers across a wide range of sectors and industries, in the United States and worldwide. It also recruits full-time and part-time staff for these contracts.

Key facts

Founded: 1993
Status: SBA certified Woman-Owned Small Business (WOSB)
Clients: government and commercial

Summary written by TrustList from the business's own published information, Sep 2026.

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Categories & features

Contractor Support Services Inc. rankings

Contractor Support Services Inc. is ranked on 2 TrustList rankings: #11 on 1 and #12 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Contractor Support Services Inc. has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Software development company · 2 rankings

#11of 62
Government
Its profile: “Contractor Support Services Inc., known as CSSI, is an American contractor that supplies management, technical and professional support staff to government agencies and commercial customers.”
Of the 62 here, 18 also cover financial services and 18 also cover information technology; 2 also work in United States and 2 also work in Tallinn.
Behind ARES Corporation, ahead of Alert IT Solutions.
#12of 31
Commercial
It is one of 12 here listing government.
Its profile: “Contractor Support Services Inc., known as CSSI, is an American contractor that supplies management, technical and professional support staff to government agencies and commercial customers.”
Of the 31 here, 14 also cover cloud and 12 also cover government; 2 also work in Wales and 2 also work in Birmingham.
Behind Branch Technical Services, LLC, ahead of Cstech LLC.