Insights

Niche Testing With NFRC and CMA approvals, IGCC/IGMA, SGCC, Miami-Dade and Florida Product Approvals, and ISO/ IEC 17025 accreditation, the company is positioned to win contracts from manufacturers and installers seeking compliant fenestration testing and certification across multiple regulatory regimes.

Geographic Reach Operations across York (HQ), Everett, WA and Orlando, FL enable regional access to major building markets and state-specific approvals, offering sales leverage for customers seeking localized testing, field testing, and quick turnaround in different U.S. regions.

Midmarket Focus A mid-sized laboratory with revenue in the 1–10 million range and a lean employee base presents an attractive, potentially more agile alternative for mid-market window and door manufacturers looking for cost-effective testing partners with established accreditation.

Comprehensive Services In-house testing of windows, doors, skylights and curtain walls plus field testing of curtain wall installations creates opportunities to upsell bundled testing packages, retrofit verification, and on-site compliance support for new builds and renovations.

Strategic Partnerships Strong accreditation portfolio and alignment with major standards bodies position the firm to pursue partnerships or subcontracting arrangements with larger labs or installers, enabling referrals and joint offerings to capture larger project opportunities in the fenestration segment.

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National Certified Testing Laboratories, Inc. Tech Stack

National Certified Testing Laboratories, Inc. uses 5 technology products and services including Google Fonts API, Twemoji, jQuery, and more. Explore National Certified Testing Laboratories, Inc.'s tech stack below.

  • Google Fonts API
    Font Scripts
  • Twemoji
    Font Scripts
  • jQuery
    Javascript Libraries
  • Underscore.js
    Javascript Libraries
  • GoDaddy
    Web Hosting

National Certified Testing Laboratories, Inc.'s Email Address Formats

National Certified Testing Laboratories, Inc. uses at least 3 email formats:
National Certified Testing Laboratories, Inc. Email FormatsExamplePercentage
FLast@nctlinc.comJDoe@nctlinc.com
91%
FirstL@nctlinc.comJohnD@nctlinc.com
4%
F.Last@nctlinc.comJ.Doe@nctlinc.com
5%

Frequently Asked Questions

What is National Certified Testing Laboratories, Inc.'s phone number?

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You can contact National Certified Testing Laboratories, Inc.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is National Certified Testing Laboratories, Inc.'s official website and social media links?

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National Certified Testing Laboratories, Inc.'s official website is nctlinc.com and has social profiles on LinkedIn.

How much revenue does National Certified Testing Laboratories, Inc. generate?

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As of September 2026, National Certified Testing Laboratories, Inc.'s annual revenue is estimated to be $1M - $10M.

What is National Certified Testing Laboratories, Inc.'s SIC code and NAICS code?

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National Certified Testing Laboratories, Inc.'s SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 4233 - Lumber and Other Construction Materials Merchant Wholesalers.

How many employees does National Certified Testing Laboratories, Inc. have currently?

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As of September 2026, National Certified Testing Laboratories, Inc. has approximately 25 employees across 2 continents, including North America and South America. Key team members include Executive Vice President: R. Z., Geotechnical Engineering Consultant - Remote: A. R. and Engineering Services To The Building Products Industry: E. R. Explore National Certified Testing Laboratories, Inc.'s employee directory with LeadIQ.

What industry does National Certified Testing Laboratories, Inc. belong to?

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National Certified Testing Laboratories, Inc. operates in the Wholesale Building Materials industry.

What technology does National Certified Testing Laboratories, Inc. use?

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National Certified Testing Laboratories, Inc.'s tech stack includes Google Fonts API, Twemoji, jQuery, Underscore.js and GoDaddy.

What is National Certified Testing Laboratories, Inc.'s email format?

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National Certified Testing Laboratories, Inc.'s email format typically follows the pattern of FLast@nctlinc.com. Find more National Certified Testing Laboratories, Inc. email formats with LeadIQ.

When was National Certified Testing Laboratories, Inc. founded?

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National Certified Testing Laboratories, Inc. was founded in 1977.
National Certified Testing Laboratories, Inc. logo

National Certified Testing Laboratories, Inc.

Wholesale Building MaterialsPennsylvania, United States11-50 Employees

National Certified Testing Laboratories, Inc. is a wholesale building materials testing firm with facilities in York, PA; Everett, WA; and Orlando, FL. The company provides in-house testing of fenestration products such as windows, doors, skylights, and curtain walls, and also conducts field testing for curtain wall installations. It operates as an approved laboratory for NFRC thermal simulations and CMA, is AAMA accredited, and holds additional approvals from IGCC/IGMA, SGCC, and Miami-Dade and Florida Product Approvals, with ISO/IEC 17025 accreditation. Serving customers in the building products sector, the organization supports product performance verification and code-compliance processes for manufacturers, specifiers, and regulatory bodies. Based in York, Pennsylvania, the business functions across multiple locations to support testing and certification services within the construction materials industry.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
4233 - Lumber and Other Construction Materials Merchant Wholesalers
Founded
1977
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    National Certified Testing Laboratories, Inc.'s revenue is estimated to be in the range of $1M - $10M

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