private-equity
A co-investor invests in a company alongside a lead sponsor — typically an LP writing a cheque next to a PE or VC fund — sharing the equity risk without paying the full fund fee load on that slice.
Co-investment is a place in the capital structure, not a strategy. The lead fund runs due diligence, negotiates the SPA or investment agreement, and usually controls the board. The co-investor takes a slice of equity, often at the same price, with fewer governance rights and, for LPs, often reduced or zero carry/fees on that slice — which is why ILPA has written extensively about allocation fairness.
In venture, “co-investor” can simply mean another fund in the round. The PE meaning is more specific: an LP or another GP sitting beside the sponsor on a single deal.
More closing parties, more KYC, sometimes a separate shareholders’ agreement. Occasionally a co-investor who wants observer rights that slow decisions. Occasionally a co-investor who becomes a useful follow-on source.
A PE fund buys 80% for €40m of equity. An LP co-invests €10m for 20% of the equity strip, no additional preferred rights. The company still has one sponsor to call. The LP’s legal team still marks up the confidentiality and reporting clauses for two weeks.
A cap table with five “co-leads” and no lead. Co-invest terms that silently include MFN against the management equity. Assuming co-investors are silent when a conflict with the GP appears.
Co-invest does not diversify the company’s risk. It diversifies the LP’s. Timing is brutal: co-invest papers often land late in the process.
From the company’s side, co-investors are extra counterparties on the same structured pack. If the pack is clean, adding a co-invest is a closing logistics problem, not a new data room.