Best Corporate Service Providers in Singapore (2026 Guide)

Quick answer: A corporate service provider (CSP) handles the company-administration work that Singapore law requires but most business owners do not want to run themselves — incorporation, the named company secretary, annual returns, accounting, tax filing and (often) payroll and work passes. The best provider for you depends less on a ranking and more on fit: match the firm’s service range, pricing model and responsiveness to your company’s stage and complexity. Look for ACRA-familiar staff, transparent fixed fees with no surprise charges, and one accountable point of contact rather than the cheapest headline price.

What a corporate service provider actually does

Every Singapore company carries ongoing statutory obligations from the day it is incorporated. You must appoint a resident company secretary within six months, file an annual return with ACRA, hold an AGM (or formally dispense with it), keep statutory registers current, and file corporate tax with IRAS each year. A corporate service provider takes on these obligations on your behalf so that your team can focus on the business itself.

Most providers cluster their work into four areas: incorporation (name application, constitution, ACRA registration), corporate secretarial (the named secretary, board and shareholder resolutions, annual return and register upkeep), accounting and tax (bookkeeping, financial statements, GST and corporate tax filing), and HR and immigration (payroll, CPF, and work-pass applications such as the Employment Pass). The broader a provider’s range, the fewer vendors you have to coordinate as you grow.

The main types of provider — and who each suits

Digital-first platforms

Firms such as Sleek and Osome built their offering around software — dashboards, chat interfaces and automated reminders — with corporate-secretary plans often starting around S$300 a year. They handle the same ACRA filings and statutory obligations as traditional firms and tend to be fast and cost-effective for routine, low-complexity work. They suit lean teams and early-stage companies that want a tidy, self-serve experience and predictable subscription pricing.

Established specialist firms

Firms such as Rikvin, Boardroom, Hawksford and HeySara have longer track records and deeper bench strength in areas like immigration, fund administration and cross-border structuring. They are a better fit when your situation is non-standard — foreign shareholders, multiple entities, EP applications, or governance that needs genuine advisory rather than form-filling.

Full-service boutiques

A middle ground combines the responsiveness of a smaller team with the full range of incorporation, corporate secretarial, accounting, tax, audit support, payroll and work-pass services under one roof. Assembly Works sits here — one accountable contact across the whole lifecycle, which removes the hand-off gaps that appear when bookkeeping, secretarial and immigration sit with three different vendors. This model suits owner-managed SMEs and foreign founders who want a single relationship as the company scales.

How to choose: six things that matter more than the ranking

• Service range. Will the provider still fit when you need GST registration, an Employment Pass, or audited accounts? Switching providers later is disruptive.
• Transparent, fixed fees. The headline incorporation price often excludes the named secretary, registered address, or AGM work. Ask for the all-in annual cost. Singapore corporate-secretarial fees typically run from around S$199 to S$3,000+ a year depending on complexity.
• A named, accountable contact. A real person who knows your file beats a ticket queue when ACRA or IRAS deadlines are involved.
• Compliance track record. Late annual returns and tax filings carry penalties — the provider’s reliability is the product.
• Responsiveness. Test how quickly they reply before you sign. It rarely improves after onboarding.
• Scalability. If you plan to hire foreign staff or raise funds, choose a provider who already handles immigration and more complex governance.

Typical cost in 2026

For context, ACRA’s own fees are fixed: S$15 for the name application and S$300 for registration, totalling S$315. On top of that, expect provider fees for incorporation packages, an annual corporate-secretary retainer, and separate accounting and tax fees. The cheapest plan is rarely the cheapest outcome — missed filings and add-on charges close the gap quickly. See our guide to the cost of incorporating in Singapore for a full breakdown.

Looking for one provider across the whole company lifecycle?
Assembly Works handles incorporation, corporate secretarial, accounting, tax, payroll and work passes for businesses in Singapore — with one accountable contact. Explore our corporate secretarial service or get in touch for a fixed-fee quote.