Building the Series A Board Before the Round
Your Series A board shapes the next three to five years of decisions. Build it thoughtfully before the round closes, not in the two weeks after it — because the leverage goes to zero the moment the term sheet is signed.
The board you end up with at Series A is the board you will spend the next three to five years operating with. It materially affects how you raise Series B, how you navigate strategic decisions, how you recruit and retain executives, and how the company handles setbacks. Yet most founders arrive at Series A without a considered view on board composition, and the structure that emerges is whatever the lead investor proposes. That is a missed opportunity. Thoughtful board construction before the term sheet is signed changes the shape of what follows.
Key Takeaway: Board composition is the single highest-leverage governance decision a founder makes at Series A. The leverage exists only before signing — after the term sheet, board structure is negotiated back toward the institutional default.
The default Series A board — and why it is defaults
The institutional default is a five-seat board: two founder seats (CEO plus one co-founder or common representative), two investor seats (lead investor plus one additional investor director), and one independent seat. This structure reflects a compromise: investors want control-adjacent influence, founders want operational autonomy, and the independent seat is the tie-breaker.
The default is not wrong. It is common because it works tolerably in most scenarios. But two things are worth considering actively: who fills the independent seat, and what reserved matters the board controls.
The independent seat — the most under-used lever
The independent director is the seat founders have the most influence over and think about the least. Most founders accept whoever the lead investor suggests or leave the seat vacant for 12 months. Both are mistakes.
A well-chosen independent brings three things: sector expertise the founding team lacks, operational credibility that earns respect from the investors, and genuine independence — loyalty to neither founder nor investor camp. The third is the hardest to find because most credible independents have relationships with institutional investors that compromise independence on the specific decisions where it matters most.
The timing matters too. Naming the independent before the term sheet is signed preserves negotiating leverage. Naming them after signing puts the founder in a weaker position — the investor already has what they wanted.
Warning: "We'll find an independent later" is the most common board-construction phrase at Series A and the one that tends to cost founders the most over the subsequent three years. The independent seat, unfilled, effectively becomes a second investor seat on contested votes.
Reserved matters — the list that shapes the next three years
Reserved matters are the list of decisions that require investor consent, typically by a supermajority or unanimous vote. The institutional default is a 20-40 item list covering everything from Series B capital raises to senior hire packages to material contracts.
Three classes of reserved matters deserve specific attention:
Senior hires
The default often requires board approval for any "senior" hire — with "senior" sometimes defined broadly. A senior hire that takes four weeks of board process is a senior hire that does not happen. Push to narrow this to C-level hires only, or hires above a specific compensation threshold.
Capital deployment
Any spend above £X requires approval. The X matters enormously. £100k is a different operating constraint from £500k, which is different from £1M. Negotiate the threshold actively — it directly determines operational autonomy.
Follow-on capital
The right to approve the next funding round, including pricing and lead investor. This one is appropriate for investor control and should be accepted — but the specific mechanics (who constitutes the approval, what timeline applies, what happens on a deadlock) are where the negotiation is.
Information rights and observer seats
The board itself is not the only governance mechanism. Information rights — monthly or quarterly reporting obligations to investors — are separate and sit in the investor rights agreement. Observer seats are non-voting attendance at board meetings, often granted to smaller investors.
Both are where the real governance friction often lives. A five-seat board with six observers generates meetings that look more like investor conferences than governance sessions. Minority investors with observer rights often become the most active voices in contested decisions because they have less accountability for outcomes than directors do.
The healthy Series A default: limit observers to one, keep information rights proportionate to investment size, and reserve board attendance for directors.
What Series B partners read from your board
The board structure you set up at Series A is visible to every subsequent investor. Series B partners form a view of the company partly by observing how the board operates. Three signals they read:
Independent credibility. A strong independent who speaks up in board meetings tells Series B partners the company has functional governance. A vacant or weak independent tells them the lead investor runs the company.
Cadence and minutes. Regular board meetings with substantive minutes signal operational maturity. Ad-hoc meetings with thin minutes signal the opposite.
Reserved-matter usage. Reserved matters that are actually invoked — votes taken, decisions made — demonstrate governance works. Reserved matters that exist on paper but never get used signal the board is ceremonial.
The Series B diligence team reads the board minutes. What they read is what you built at Series A.
Where to negotiate before signing
The term sheet is the negotiation. Once it is signed, the structure is locked for the life of the round. The specific points to push on:
Board size
Five is standard. Seven can work. Three is too few; more than seven is unwieldy.
Independent identification timeline
Commit to naming the independent within 90 days of closing. Identify a candidate before the term sheet if possible.
Reserved-matter thresholds
Negotiate capital-deployment threshold, senior-hire definition, strategic-decision scope actively.
Observer seats
One is healthy. Multiple observers change the dynamic materially — push back.
Board size. Five is standard. Seven can sometimes work. Three is not enough control for investors; more than seven is unwieldy.
Independent identification timeline. Commit to naming the independent within 90 days of closing, not "in due course". Identify a candidate before the term sheet if possible.
Reserved-matter thresholds. Negotiate the capital-deployment threshold, the senior-hire definition, and the strategic-decision scope actively. Default lists are a starting point, not the destination.
Observer seats. One is healthy. Multiple observers change the dynamic materially and are worth pushing back on.
For the broader view on how Series A governance connects to the intangible asset base — specifically culture & practices and organisational knowledge — see Series A readiness.
The Bottom Line
Board construction is a Series A leverage point that disappears the moment the term sheet is signed. Negotiate board size, independent seat, reserved matters, and observer rights deliberately — not reactively. The next three to five years of operating and raising are shaped here.
Build the register that makes governance a strength
Culture & practices and organisational knowledge are two of The Opagio 12. Partners price them when the evidence is visible — and governance structure is the most visible evidence of all.