What check sizes do family offices typically write?

There is no single typical check

Family offices vary widely in their investment approach. One may invest directly in a company, while another prefers a fund, co-investment, or a smaller role alongside other investors. Their available capital and decision process also differ. So a check size that is reasonable for one office may be outside another’s mandate.

Treat any general range you hear as a starting point, not a promise. The relevant question is what this office considers for this type of investment, at this stage, and under these terms. Its appetite may also change with portfolio concentration, liquidity needs, and the amount of diligence required.

Qualify fit before you pitch

Before sending a long deck or asking for a meeting, find out the office’s investment focus, preferred structures, minimum and target commitment, and whether it can participate in follow-on rounds. Ask whether it invests directly or through a fund, and who makes the decision. A clear answer can save both sides time.

You can also ask what would make the opportunity too small or too large for them. Keep the conversation practical and specific. If the fit is uncertain, propose a next step that helps both parties assess it, such as reviewing a concise summary or discussing the investment structure.

Build a realistic raise

Set your target around the capital the project needs and the terms you can support. Do not shape the plan around an assumed family office commitment. If the total raise is larger than one investor is to consider, think through whether a group of aligned investors or a fund structure makes sense. Be ready to explain how each amount would be used and what participation entails.

Keep the process professional. Family offices may conduct background checks and detailed diligence, and they will expect clear documentation and consistent communication. A well-qualified conversation is more useful than a large list of names. Focus on whether the investment fits their mandate and whether both sides can work together effectively.