Co-Founder Agreement (Singapore)

A Co-Founder Agreement in Singapore is a legally binding contract between two or more individuals who jointly establish a company, typically a private limited company incorporated under the Companies Act 1967 (Cap. 50). The agreement defines each founder's equity stake, vesting schedule, roles, decision-making authority, intellectual property (IP) assignment obligations, and exit mechanisms before the company begins operations. Unlike a shareholders' agreement — which governs the relationship between shareholders of an already-incorporated company — a Co-Founder Agreement addresses the pre-incorporation and early-stage dynamics unique to startup formation.

The Accounting and Corporate Regulatory Authority (ACRA) administers company incorporation in Singapore, and founders must register the company through ACRA's BizFile+ portal. While ACRA registration creates the corporate entity, the Co-Founder Agreement governs the founders' internal relationship — covering matters that the Companies Act 1967 and the company's constitutional documents (formerly known as the Memorandum and Articles of Association) may not address in sufficient detail. Singapore's reputation as a startup hub — ranked second globally in the World Bank's Ease of Doing Business index — attracts founders from diverse backgrounds, making a written Co-Founder Agreement essential to prevent disputes that could derail the venture.

Equity allocation and vesting provisions form the core of a Singapore Co-Founder Agreement. Standard market practice for Singapore startups, endorsed by accelerators such as Enterprise Singapore's Startup SG and NUS Enterprise, involves a four-year vesting schedule with a one-year cliff — meaning no equity vests until the founder completes 12 months of full-time commitment, after which equity vests monthly or quarterly over the remaining 36 months. The agreement should specify the total number of issued shares, the par value per share (commonly SGD 1.00 for private limited companies), and the vesting mechanics including acceleration triggers upon a change of control.

Intellectual property assignment is a critical element of any Co-Founder Agreement in Singapore. Under the Copyright Act 2021 (Cap. 63), the Patents Act (Cap. 221), and the Trade Marks Act (Cap. 332), IP rights initially vest in the individual creator unless assigned by written agreement. The Co-Founder Agreement should contain an IP assignment clause transferring all founder-created IP to the company, including source code, designs, business methodologies, and trade secrets developed during or in connection with the venture. Without such a clause, disputes over IP ownership may arise — particularly problematic during fundraising, as institutional investors and venture capital firms require clean IP title as a condition of investment.

Dispute resolution between co-founders in Singapore typically proceeds through mediation at the Singapore Mediation Centre (SMC) or arbitration at the Singapore International Arbitration Centre (SIAC) before escalating to litigation in the Singapore High Court. Section 216 of the Companies Act 1967 provides a statutory remedy for minority shareholder oppression, allowing a co-founder to petition the court where the company's affairs are conducted in a manner oppressive to minority shareholders. The Co-Founder Agreement should include a tiered dispute resolution clause — negotiation, then mediation, then arbitration — to contain costs and preserve the working relationship. On forms-legal.com, the Co-Founder Agreement template includes structured fields for equity allocation, vesting schedules, IP assignment, decision-making thresholds, and non-compete restrictions specific to Singapore's startup ecosystem.

A Co-Founder Agreement in Singapore is needed whenever two or more individuals decide to build a business together and plan to incorporate a private limited company with the Accounting and Corporate Regulatory Authority (ACRA). Below are the principal scenarios requiring a written agreement.

When friends, former colleagues, or acquaintances decide to launch a technology startup together, a Co-Founder Agreement should be executed before or simultaneously with ACRA incorporation. Without a written agreement, the founders rely on default provisions of the Companies Act 1967 (Cap. 50) and the company's constitution, which may not reflect the founders' actual intentions regarding equity splits, vesting conditions, or role assignments.

When one founder contributes primarily capital while another contributes sweat equity (time, skills, and labour), the Co-Founder Agreement must document the agreed equity split and the vesting terms that protect the capital-contributing founder from dilution risk if the sweat-equity founder departs early. Singapore courts have held that verbal agreements on equity allocation are enforceable but difficult to prove — the Singapore High Court in Lim Ah Leh v Heng Fock Lin [2018] emphasised the evidentiary burden on parties relying on oral arrangements.

Founders applying to Enterprise Singapore's Startup SG Founder programme, joining accelerator cohorts at NUS Enterprise, or seeking seed funding from venture capital firms such as those registered with the Singapore Venture and Private Capital Association (SVCA) will typically be required to produce a Co-Founder Agreement as part of the due diligence process. Investors need assurance that IP has been assigned, equity has vested appropriately, and departure mechanics are defined.

When co-founders have unequal roles — for example, one serves as CEO while another serves as CTO — the agreement must define each founder's title, responsibilities, reporting structure, and the minimum time commitment expected. The Employment Act 1968 (Cap. 91) does not apply to company directors, but founders who are also employees must have their employment terms addressed either in the Co-Founder Agreement or in a separate employment contract.

When a founding team operates across borders — with one founder based in Singapore and another working remotely from overseas — the Co-Founder Agreement must address jurisdiction, governing law, and the practical implications of cross-border IP assignment. The agreement should specify Singapore law as the governing law and the Singapore International Arbitration Centre (SIAC) as the arbitration forum to provide certainty in cross-border disputes.

When co-founders wish to protect their venture from the departure of a key founder, the agreement should include vesting acceleration provisions, buyback rights at fair market value, and transfer restrictions preventing a departing founder from selling unvested shares to third parties without the remaining founders' consent.

A properly structured Co-Founder Agreement for a Singapore startup should contain the following essential elements to protect all founders and satisfy investor due diligence requirements.

Company formation details must state the proposed company name, the intended registered address in Singapore, the nature of the business, and the planned date of incorporation with the Accounting and Corporate Regulatory Authority (ACRA). The agreement should reference the Companies Act 1967 (Cap. 50) as the governing incorporation statute and specify whether the company will be incorporated as a private limited company (Pte. Ltd.) — the standard structure for Singapore startups.

Founder identification and commitment clauses must list each founder's full legal name, NRIC or passport number, nationality, residential address, and the nature of their contribution — whether cash capital, intellectual property, industry expertise, or full-time labour (sweat equity). The agreement should define each founder's minimum weekly time commitment and specify whether founders may engage in outside activities, subject to the non-compete and exclusivity provisions.

Equity allocation provisions must specify the total number of shares to be issued upon incorporation, the par value per share, and each founder's percentage ownership. For a typical Singapore startup, the initial share capital may be as low as SGD 1 (one share at SGD 1 par value per founder), though institutional investors may request a higher issued share capital during subsequent funding rounds. The agreement should address the creation of an employee stock option pool (ESOP) and the dilutive effect on founder equity.

Vesting schedule and cliff provisions define the timeline over which each founder earns their equity stake. The standard market practice in Singapore's startup ecosystem — endorsed by Enterprise Singapore and major accelerator programmes — is a four-year vesting period with a one-year cliff. During the cliff period, no equity vests; upon completion of the cliff, 25% of the founder's allocated shares vest immediately, with the remaining 75% vesting monthly or quarterly over 36 months. The agreement should define acceleration triggers — single-trigger acceleration upon a change of control, or double-trigger acceleration requiring both a change of control and the founder's involuntary termination.

Intellectual property assignment clauses must require each founder to assign to the company all IP created in connection with the venture, including source code, algorithms, designs, trade marks, domain names, and business methodologies. Under the Copyright Act 2021 (Cap. 63), copyright vests in the individual author unless assigned by written agreement, and the Patents Act (Cap. 221) similarly requires written assignment. The clause should cover pre-existing IP that a founder licenses to the company and should specify the scope and duration of such licence.

Decision-making and governance provisions should define which decisions require unanimous founder consent — such as issuing new shares, incurring debt above a specified threshold, entering into related-party transactions, or changing the company's business direction — and which may be made by majority vote or by the designated managing founder. The agreement should establish a founders' meeting schedule and quorum requirements.

Non-compete and confidentiality restrictions should prevent founders from engaging in competing activities during the venture and for a defined period after departure. Singapore courts assess the enforceability of non-compete clauses based on the reasonableness test established by the Court of Appeal in Man Financial (S) Pte Ltd v Wong Bark Chuan David [2008]. A 12-month post-departure restriction covering the specific business vertical in Singapore has generally been considered reasonable for startup founders.

Departure and buyback provisions must define the process when a founder leaves — whether voluntarily or through termination by the remaining founders. Unvested shares should be forfeited or repurchased by the company at the original par value, while vested shares may be subject to a right of first refusal by the remaining founders at fair market value as determined by an independent valuer or by a formula defined in the agreement. The Stamp Duties Act (Cap. 312) may apply to share transfers, with duty calculated at 0.2% of the higher of the transfer price or the net asset value of the shares. A complete Co-Founder Agreement template on forms-legal.com includes all these elements with structured fields for equity allocation, vesting terms, IP assignment, and governance thresholds specific to Singapore's regulatory framework. The agreement is governed by Singapore contract law (based on English common law, received under the Application of English Law Act 1993) and the Companies Act 1967 (Cap. 50), with any personal data handled in accordance with the Personal Data Protection Act 2012 (PDPA).