Sourcing a supplier you have never used before is mostly an exercise in reading signals — and the useful signals are the ones a company cannot easily manufacture for itself. In Singapore that is unusually tractable, because a great deal of what matters is registered, graded or accredited by somebody other than the supplier.
Here is what to check, roughly in the order it is worth checking.
1. That the company exists, and for how long. Every company in Singapore is registered with the Accounting and Corporate Regulatory Authority (ACRA), which holds the legal name, unique entity number (UEN), incorporation date, registered address, principal activity and shareholding. A company’s own website tells you what it wants to be; the registry tells you what it is. A UEN that does not resolve, a name that differs materially from the trading name with no explanation, or an incorporation date measured in months when the marketing implies decades — each is worth a question.
2. Whether the trade is licensed or graded, and where the company sits. Several Singapore industries are graded by a public body, and the grade is a compressed summary of audited track record and financial standing:
- Construction and building services — the Building and Construction Authority registers contractors by workhead (electrical, ACMV, fire protection, and so on) and grades them L1 to L6. The grade governs the size of public tender a firm may hold, which makes it one of the few independently maintained signals of scale.
- Marine fuel — the Maritime and Port Authority licenses bunker suppliers and bunker craft operators, and publishes the list.
- Pharmaceuticals, medical devices and food — the Health Sciences Authority and the Singapore Food Agency license manufacture and supply in their respective domains.
Ask which registrations a supplier holds, then confirm them at the source rather than in a PDF the supplier sends you.
3. Quality certification — and what it actually covers. ISO 9001 tells you a company has a documented quality system, not that it can make your part. The certifications that carry real information are the sector-specific ones: ISO 13485 for medical devices, AS9100 for aerospace, IPC-A-610 Class 3 for high-reliability electronics assembly, ISO/IEC 17025 for calibration and testing laboratories, and Nadcap accreditation for aerospace special processes such as heat treatment, plating and non-destructive testing. Two things matter more than the certificate: its scope — certifications cover named processes at a named site, not the whole company — and its currency. Ask for the certificate, check the scope statement against the work you want done, and check the expiry.
4. Evidence that the company has done this specific thing. Capability claims are cheap; specificity is not. A supplier that can name the project, the year, the tolerance, the standard and the customer is telling you something a competitor cannot copy. A supplier whose evidence is a list of industries served is telling you very little. This is the check most buyers underweight, and the one that most reliably separates firms.
5. Whether anyone independent has written about them. Third-party coverage — an industry publication, a trade association membership, an award with a named jury, a customer’s own announcement — is harder to fabricate than a website. Its absence is not damning for a small specialist; its presence is a genuine signal.
Common questions
How do I verify a Singapore company is real? Check its registration with ACRA, the national companies registrar: the unique entity number, legal name, incorporation date and principal activity are all matters of record. Confirm that the entity you are contracting with is the entity that holds the certifications and registrations being claimed — in groups with several Singapore entities, these are not always the same company.
What does a BCA L6 grade mean? L6 is the top grade in a Building and Construction Authority workhead. It carries no upper tendering limit for public projects in that workhead, and it requires the deepest combination of track record, professional staffing and financial standing to earn and hold. Grades are per workhead, so read the whole set rather than the headline.
Is ISO 9001 enough? For most industrial work, no. ISO 9001 certifies that a quality management system exists and is followed. Whether a supplier can make your part to your standard is answered by sector-specific certification with a scope that matches the work — and by evidence they have done it before.
How do I check a supplier from outside Singapore? The registries and accreditation schemes above are all consultable remotely, which makes Singapore easier to verify at a distance than most manufacturing locations. Where a physical audit is impractical, a third-party inspection body based in Singapore can carry one out on your behalf.
What are the warning signs? Certifications supplied as images rather than certificates with readable scope and expiry; a registered entity that does not match the entity named in the quotation; capability claims with no project, date or standard attached; and an inability to say plainly which processes are done in-house and which are subcontracted.
The Singapore Industry Index maintains a verified record of Singapore industrial companies — capability by capability, company by company — built for exactly this moment.