Treadstone Associates
Article · 9 min read

Board composition after an investment

An investor putting money into a private company usually assumes a board seat comes with the cheque. Under the Canada Business Corporations Act, it doesn’t come automatically at all — and once someone is seated, the law is specific about whose interest they actually have to serve.

Treadstone Associates · Updated 2026

Key takeaways

  • • The CBCA’s default rule is that directors, not shareholders, manage or supervise the business — a board seat for an investor is a negotiated right, not an automatic consequence of putting in capital.
  • • At least 25% of a CBCA corporation’s directors must be resident Canadians — and for a common five-person post-investment board, that works out to at least two, not one.
  • • A director seated by an investor still owes the corporation itself the CBCA s. 122 duty of honesty, good faith and reasonable care — not a duty to act in the appointing shareholder’s interest specifically.
  • • A unanimous shareholder agreement can reroute directors’ powers to the shareholders directly — at which point anyone holding those powers takes on a director’s liabilities along with them.

The default rule an investment usually overrides

Before any negotiation happens, the statute already has an answer for who runs a CBCA corporation. Section 102(1) states plainly that, “subject to any unanimous shareholder agreement, the directors shall manage, or supervise the management of, the business and affairs of a corporation.” Shareholders — including an investor who has just written a cheque — have no inherent right to sit on the board or direct management simply by virtue of holding shares. A board seat, an observer seat, or any other governance right an investor wants has to be negotiated into the deal documents explicitly; none of it exists by default.

The residency rule that catches a board built quickly

Section 105(3) requires that “at least twenty-five per cent of the directors… must be resident Canadians,” with a narrower rule for very small boards: “if a corporation has less than four directors, at least one director must be a resident Canadian.” The 25% threshold is easy to satisfy on paper and easy to miss in practice, because “at least 25%” does not round down — a board has to clear the percentage, not approximate it.

How the 25% rule actually lands, by board size

  • 3 directors: the “fewer than 4” exception applies — at least 1 resident Canadian.
  • 4 directors: 25% of 4 is exactly 1 — at least 1 resident Canadian.
  • 5 directors — a common shape after an investment, e.g. two sponsor seats, two management seats and one independent: 25% of 5 is 1.25, and one resident Canadian is only 20% of the board, below the threshold — so at least 2 are required.
  • 7 directors: 1 is 14.3%, still short — at least 2 are required (28.6%).

The board sizes above the “fewer than 4” exception are this article’s own arithmetic applying the statute’s “at least 25%” language — the Act does not spell out a rounding rule, but a percentage below 25% plainly does not satisfy a threshold stated as “at least.”

A five-person board built quickly around a term sheet — two seats for the investor, two for existing management, one independent — can therefore fail the residency requirement with a single non-resident director in the wrong seat, even though the same allocation would have been fine at four directors. Confirming residency status is a due-diligence item on the investor’s own nominees, not just on the company being invested in.

Whose interest a seated director actually has to serve

Once seated, an investor-appointed director does not represent the investor in any legal sense — the statute is specific about who they serve. Section 122(1) requires every director to “act honestly and in good faith with a view to the best interests of the corporation” and to “exercise the care, diligence and skill that a reasonably prudent person would exercise in comparable circumstances.” Subsection (3) closes off the obvious workaround: “no contract, article, by-law or resolution” can relieve a director of that duty. An investor-nominated director who votes to benefit the fund at the company’s expense is not fulfilling their appointment — they are breaching a statutory duty that runs to the corporation itself, regardless of who put them on the board.

Removing or replacing a director once someone is unhappy

Section 109(1) lets the shareholders “by ordinary resolution at a special meeting remove any director or directors from office” — a majority vote, not the two-thirds a special resolution would require. But s. 109(2) carves out an important exception for exactly the situation a negotiated investment often creates: “where the holders of any class or series of shares… have an exclusive right to elect one or more directors, a director so elected may only be removed by an ordinary resolution” of that same class or series. In practice, this is why an investor’s board seat is often structured as a class-specific election right rather than a general board slot — it insulates that seat from being voted out by the common shareholders alone.

Where a unanimous shareholder agreement changes all of this

A unanimous shareholder agreement (USA) can restructure the default picture entirely. Section 146(1) confirms that an agreement among all the shareholders restricting the directors’ powers “is valid,” and s. 146(5) is explicit about the trade-off: whoever is given the directors’ powers under the agreement “have all the rights, powers, duties and liabilities of a director” to the same extent the directors are relieved of them. An investor who negotiates direct approval rights through a USA rather than through a board seat is not avoiding director-level exposure — they are taking it on directly, without the seat. Treadstonelaw.ca’s own primer on raising money for a startup flags the underlying trade-off from the founder’s side: “board seats / observer rights — a say in governance. Giving up a board seat gives up some control; weigh it carefully.” Note s. 146(4) as well: a purchaser of shares subject to a USA who was not given notice of it may rescind the purchase within 30 days of learning it exists — a real trap for a later investor buying in without confirming what governance rights already exist.

See where returns actually come from in a small buyout for how the equity stake a board seat attaches to actually gets its value, and structuring investor returns on a single deal for how a single-deal investor’s governance rights typically get drafted into the corporate documents themselves.

Common questions

Does a majority shareholder automatically control the board?

Not automatically in the sense of running the company directly — s. 102(1) still puts management in the directors’ hands. A majority shareholder can elect a board majority through ordinary voting and can remove directors under s. 109, which gives effective control, but it is control exercised through electing and removing directors, not a legal right to manage the company personally.

Can an investor demand veto rights without a board seat?

Yes — this is typically done through negotiated protective provisions or a unanimous shareholder agreement rather than through the board itself, and it is a genuinely different mechanism from a board seat. See rollover equity terms the vendor should negotiate for a related example of governance rights negotiated outside the ordinary board structure.

What happens if a board falls below the 25% resident-Canadian threshold after a director resigns?

The corporation is out of compliance the moment the threshold is breached, which is a real operational risk if a resignation happens unexpectedly. Confirming a replacement’s residency status before a board changes composition — not after — is the practical safeguard, since the Act does not appear to offer a grace period for accidental non-compliance.

Get your post-investment governance documents reviewed before the round closes.

A short call can confirm your board seats, USA provisions and residency mix all actually work together.

The Canadian benchmark

What do businesses like this one actually sell for?

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