Independent eyes at the witness point, wherever the shipment starts.

LSource provides third-party inspection (TPI) and vendor surveillance services across the oil & gas, power generation, and heavy industry sectors — principally in support of complex, multi-tier supply chains. Clients rely on our inspection results, reports, and certifications to make decisions about the acceptance, release, and safety of equipment and materials.

We align our practices with the principles of ISO/IEC 17020 (requirements for bodies performing inspection) and ISO 9001, applying them consistently across in-house and subcontracted inspection resources — and we treat impartiality as a condition of engagement for every inspector who represents LSource on a client or vendor site.

Every inspector we assign holds the obligation to reject nonconforming work, place a hold on release, or decline to sign a document the inspector cannot support. No prior approval is needed. That right is written into our Quality Policy, not left to individual discretion.