STC Capabilities — Live Vendor Card.

Every line item federal buyers verify before a sole-source award — vendor record, NAICS-grouped capabilities, project proof, warranty terms — all on one page. Download the PDF mirror or read it here.

Capabilities 

Turnkey Design-Build Delivery

A fully integrated approach that takes your project from concept to completion under one roof. We handle architecture, engineering, fabrication, site work, installation, and final commissioning, giving you a single point of accountability and a faster, more predictable build.

Modular Building Fabrication

Precision‑built modules manufactured in a controlled environment for superior quality, reduced waste, and accelerated timelines. Every unit is engineered to meet or exceed code requirements and delivered ready for installation.

Pre-Construction Planning & Design

Early‑stage planning that sets your project up for success. We provide feasibility studies, budgeting, scheduling, 3D modeling, and value engineering to ensure your design is efficient, cost‑effective, and build‑ready. 

Architectural Services

Complete structural, mechanical, electrical, and architectural design tailored to modular construction. Our team ensures every detail is optimized for off‑site fabrication and seamless on‑site assembly.

Site Development & Foundations

From grading and utilities to foundations and infrastructure, we prepare your site to receive modular units with precision. Our team coordinates all on‑site work to align perfectly with the off‑site production schedule.

Modular Transportation & Installation

Safe, efficient delivery and crane‑set installation of modular units. We manage logistics, rigging, and on‑site coordination to ensure a smooth, rapid assembly process with minimal disruption.

Interior & Exterior Finishing

Complete finishing services that bring your project to life, from interior build‑outs and MEP connections to exterior cladding and final detailing. We deliver a fully finished, move‑in‑ready building.

Project Management & Coordination

Dedicated project managers oversee every phase, ensuring clear communication, tight scheduling, and consistent quality. You get real‑time updates and a streamlined experience from start to finish.

Renovation, Expansion & Add‑On Modules

Flexible modular solutions for expanding existing facilities or upgrading outdated spaces. We design and deliver add‑on modules that integrate seamlessly with your current structure.

Post‑Construction Support

Even after handoff, we remain a partner. We provide maintenance, lease options, warranty support, and long‑term service options to keep your building performing at its best.

Vendor Record

Legal name Specialized Testing and Construction, Inc.
DBA STC
UEI E5KCB1AL71J7
CAGE 97SC3
Primary NAICS 236220
Secondary NAICS 332311
Business classification Minority-owned small business
Federal contractor status Active · SAM.gov in good standing
SBA 8(a) certification Active through 05/27/2031
Bonding capacity $5 million single · $10 million aggregate
State of incorporation Texas
HQ address 4150 International Pky, Suite 820 / 850, Fort Worth, TX 76109

What STC Builds and Delivers

NAICS 236220 — Commercial and Institutional Building Construction

  • Design-build delivery of permanent and relocatable modular buildings for federal installations
  • Site preparation, foundations, utility tie-ins, and turnkey commissioning
  • Construction Quality Management (CQM) on every project — USACE credentialed staff
  • Submittal packages, RFIs, and close-out documentation in federal format
  • Lease-to-own and direct-purchase contracting structures

NAICS 332311 — Prefabricated Metal Buildings and Components

  • Steel-framed modular building manufacture and assembly
  • Component fabrication for hardened, blast-resistant, and SCIF-grade enclosures
  • Factory and field assembly options based on agency security and timeline requirements
  • UL-listed electrical assemblies and mechanical packages factory-installed
  • Compliance with UFC 4-010-01 (Minimum Antiterrorism Standards) when scoped

Additional NAICS STC carries

  • 237310 Highway, Street and Bridge Construction
  • 238190 Other Foundation, Structure and Building Exterior Contractors
  • 238290 Other Building Equipment Contractors
  • 238990 All Other Specialty Trade Contractors
  • 321992 Prefabricated Wood Building Manufacturing
  • 531120 Lessors of Nonresidential Buildings

What Makes STC Different

8(a) Sole-Source Eligible

Active SBA 8(a) certification opens the sole-source contracting path. Federal agencies can award directly to STC without a competitive solicitation up to the FAR 8(a) threshold — $4.5 million for services and supplies, $7 million for manufacturing under NAICS 332311.

Quality-Assurance Credentials

STC staff carry USACE Construction Quality Management (CQM) credentials. Every project runs on the federal QC documentation regime — three-phase inspections, daily QC reports, definable feature checklists. The paperwork is audit-ready before the building is commissioned.

Warranty + Lease Service

Standard two-year warranty on buildings purchased; lease-program buildings carry full-term service. Guaranteed 2-hour maintenance response time · 24/7 maintenance coverage, nationwide. STC's field service team owns warranty and lease service work — no subcontractor warranty disputes.

Top Five 8(a) Project Highlights

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Take the Capabilities Document With You

Name, Agency, Email. STC delivers the PDF directly and confirms receipt.

Warranty and Lease Service

One service team. One response standard. Federal lifecycle support on every STC contract.

Service standard

Guaranteed 2-hour maintenance response time · 24/7 maintenance coverage, nationwide. STC dispatches a service technician — not a subcontractor — to assess, scope, and resolve. Warranty work and lease-program service run through the same intake.







    Common Questions Buyers Ask About Capabilities

    Scope, NAICS coverage, bonding, warranty, lease structures — all in the central FAQ.

    Ready to verify STC against your buyer checklist?

    Submit a briefing request. STC responds within one business day. Call now — 682.900.3040