If your construction, renovation or building services company wants to bid for public-sector projects in Singapore, BCA contractor registration is usually the first hurdle. The Building and Construction Authority (BCA) maintains the Contractors Registry System (CRS), a register of firms that government agencies use to decide who may tender for their construction and related work, and up to what contract value.
This guide walks through how the registry works, how to choose workheads and grades, what financial and personnel requirements typically apply, and how to apply. It is general information, not legal or professional advice. BCA updates its requirements from time to time, so always confirm the current criteria, fees and forms on BCA’s official website before you apply.

What the Contractors Registry Is For
Public-sector agencies, such as government ministries and statutory boards, generally require contractors to be registered under the CRS before they can bid for many types of public construction and construction-related contracts. Registration tells the agency that your firm has been assessed for:
- The type of work it can do, through the workhead you are registered under.
- The size of contract it can handle, through the grade you hold in that workhead.
Some private-sector developers and main contractors also ask for CRS registration when selecting subcontractors, because it signals that a firm has been vetted.
It is important to separate CRS registration from other requirements:
- Business registration with ACRA (the Accounting and Corporate Regulatory Authority) through Bizfile comes first. You need a registered entity before applying.
- Builders licensing is a separate BCA regime under the Building Control Act. Firms carrying out certain building works that need BCA’s permit may need a General Builder or Specialist Builder licence, regardless of whether they are on the CRS.
- Other trade licences may apply depending on your work, such as licensed electrical workers under the Energy Market Authority or plumbing work under PUB’s rules.
Understanding Workheads
A workhead is a category of work. You register under the workheads that match what your company actually does, and you can hold more than one.
Workheads are grouped into broad classes, which commonly include:
- Construction (CW): for example, general building (CW01) and civil engineering (CW02).
- Construction-related (CR): specialist work such as interior decoration and finishing, piling, steelwork, landscaping and other trades.
- Mechanical and electrical (ME): for example, air-conditioning, electrical installation, lifts, fire protection and building automation.
- Maintenance (MW): upkeep and repair work for buildings and facilities.
- Supply (SY): supply of construction materials and products.
Choose carefully. Each workhead has its own requirements, and you must show relevant track record and qualified staff for each one. Check BCA’s current list of workheads and their scope descriptions, because the list and codes can be revised.
How Grades and Tendering Limits Work
Within each workhead, firms are assigned a grade. Higher grades let you tender for larger contracts. The main construction workheads typically use a scale of A1, A2, B1, B2, C1, C2 and C3, while many other workheads use a level scale such as L1 to L6. Each grade carries a tendering limit, the maximum contract value a firm in that grade may bid for in the public sector. BCA publishes the current limits, which are reviewed periodically.
Most new firms start in a lower grade and move up as they build a track record, financial strength and team.
| Requirement area | What BCA typically assesses | What to prepare |
|---|---|---|
| Financial | Minimum net worth and paid-up capital for the grade | Audited accounts or financial statements, ACRA business profile |
| Personnel | Number and qualifications of professional and technical staff | Staff CVs, qualifications, employment records, CPF contribution proof |
| Track record | Value of completed projects in the workhead over a recent period | Contract documents, completion certificates, client references |
| Management certification | Quality, environmental and safety systems for higher grades | ISO certificates, bizSAFE or other required certifications |
Exact thresholds differ by workhead and grade, so do not rely on old figures from forums or competitors. Look up the current requirements table on BCA’s site.
Step-by-Step: How to Apply
- Confirm eligibility. Make sure your company is registered with ACRA and that the workheads you want match your actual business activities. Read BCA’s current requirements for each workhead and grade.
- Pick the right starting grade. Compare your net worth, paid-up capital, staff and completed projects against the requirements. Apply for a grade you can fully support with documents; overreaching can delay or sink an application.
- Gather documents. Typically this includes financial statements, details of directors and shareholders, staff qualifications and employment evidence, project track record and any required certifications.
- Submit online. Applications are made through BCA’s online system. Use your company’s Corppass (the corporate digital identity for government transactions) to log in. Check BCA’s website for the current portal and application fee.
- Respond to queries. BCA may ask for clarification or further documents. Reply promptly to avoid delays.
- Receive your registration. Once approved, your firm appears on the registry with its workheads and grades, and you can start tendering within your limits, for example through the government’s procurement portal GeBIZ.
Keeping Your Registration in Good Standing
Registration is not a one-time exercise.
- Renew on time. Registration is valid for a fixed period. Diarise the expiry date and check BCA’s renewal requirements well before it.
- Keep records current. Report changes in directors, key staff, paid-up capital or company particulars as BCA requires. Losing a key qualified staff member can affect whether you still meet your grade.
- Maintain performance. Poor project performance, safety lapses or regulatory breaches can affect registration. Safety performance in particular is closely watched in Singapore’s construction industry.
- Plan upgrades. As you complete larger projects, strengthen your balance sheet and hire qualified staff, you can apply to upgrade to a higher grade or add new workheads.
Common Mistakes to Avoid
- Registering for too many workheads without the staff or track record to support them.
- Using unaudited or inconsistent financial figures that do not match ACRA filings.
- Counting staff who do not qualify, for example people not on your payroll or without the required qualifications.
- Forgetting builders licensing and other trade licences, which are separate obligations from CRS.
- Missing renewal deadlines, which can leave you unable to tender when a good project comes up.
If your work involves engineering design, you may also work alongside registered professionals; see How to Register as a Professional Engineer (PE) in Singapore. Renovation firms targeting HDB homeowners should also understand the separate HDB scheme covered in How to Check If Your Renovation Contractor Is on HDB’s DRC List. And if you plan to register a work vehicle in the company’s name, read How to Register a Car Under a Company in Singapore.
A well-prepared BCA application takes time, but it opens the door to a steady stream of public-sector work and helps your firm grow grade by grade.
Frequently Asked Questions
Do I need BCA registration for private renovation jobs? Not necessarily. CRS registration matters most when bidding for public-sector contracts, though some private developers and main contractors also ask for it when choosing subcontractors. Other schemes, such as HDB’s own for renovation firms, are separate, so check what your target clients require.
How long does it take to get BCA contractor registration? The time depends on how complete your application is and how quickly you answer BCA’s queries. Missing documents are a common cause of delay. Check BCA’s website for the current processing guidance and application fee before you plan a tender around the date.
What if my BCA registration application is rejected or delayed? Read the reason BCA gives, then fix the gap, whether it is financial figures, staff qualifications or track record. Consider applying for a lower grade or fewer workheads that you can fully support. Reply promptly to any query so the application keeps moving.
How can a new company without a track record get started? New firms usually begin at a lower grade and build up. Focus on the workheads that match your real business, document every completed project with contracts and completion certificates, and hire qualified staff. Subcontracting for registered firms can help build experience.
Can I check whether a contractor is registered on the CRS? Yes. BCA maintains the registry, and public agencies rely on it, so use BCA’s official website to look a firm up and see its workheads and grades. Do not rely only on a company’s brochure or website claims.
Further reading: How to Start a Renovation or Contractor Business