# Specialty Labs Index > Specialty Labs Index is a procurement-grade reference for sourcing specialty and technical testing laboratories: materials & mechanical testing, environmental testing, calibration & metrology, non-destructive testing (NDT) & failure analysis, and product safety & compliance testing. Understand every testing discipline, learn exactly what to verify before you retain a lab, request sourcing help, and explore a reference to notable real labs in the space. Procurement support, not safety or legal advice. Procurement support and buyer education only. Not safety, engineering, or legal advice. No fabricated credentials, accreditations, statistics, reviews, or ratings. Data as of 2026-07-14. ## What this site is A procurement-grade reference for sourcing and vetting specialty and technical testing laboratories: materials & mechanical testing, environmental testing, calibration & metrology, non-destructive testing (NDT) & failure analysis, and product safety & compliance testing. Plus a sourced reference to 34 notable real labs in the space. 8 testing categories, 22 glossary terms, 1 procurement decision framework(s). ## Testing discipline guides - [How to Choose a Materials Testing Laboratory](https://specialtylabsindex.com/guides/how-to-choose-a-materials-testing-laboratory) - [How to Choose an Environmental Testing Lab](https://specialtylabsindex.com/guides/how-to-choose-an-environmental-testing-lab) - [How to Choose a Chemical Testing Lab](https://specialtylabsindex.com/guides/how-to-choose-a-chemical-testing-lab) - [How to Choose a Product Testing Laboratory](https://specialtylabsindex.com/guides/how-to-choose-a-product-testing-laboratory) - [Failure Analysis Laboratory: A Buyer's Guide](https://specialtylabsindex.com/guides/failure-analysis-laboratory-buyers-guide) - [NDT Testing Services: A Buyer's Guide](https://specialtylabsindex.com/guides/ndt-testing-services-buyers-guide) ## Lab sourcing & accreditation guides - [How to Find an ASTM-Accredited Testing Lab](https://specialtylabsindex.com/guides/astm-accredited-testing-lab-buyers-guide) - [What Is a Third-Party Testing Lab (and When You Need One)](https://specialtylabsindex.com/guides/what-is-a-third-party-testing-lab) ## Compare (procurement decision frameworks) - [In-House Testing Lab vs. Third-Party Testing Lab](https://specialtylabsindex.com/compare/in-house-vs-third-party-testing-lab) ## Key pages - [Source a lab (sourcing request)](https://specialtylabsindex.com/source-a-vendor) - [Notable specialty testing & calibration labs](https://specialtylabsindex.com/vendors) - [Glossary](https://specialtylabsindex.com/glossary) - [Methodology](https://specialtylabsindex.com/methodology) - [Labs JSON API](https://specialtylabsindex.com/api/vendors.json) - [Guides JSON API](https://specialtylabsindex.com/api/guides.json) - [Standards bodies JSON API](https://specialtylabsindex.com/api/standards-bodies.json) ## Contact hello@specialtylabsindex.com