Cap Table Liquidity & Private Secondary Markets3 min readUpdated September 2026

Carta vs Forge for a Manufacturer Priced on Two Customer Relationships

The founding machinist who built this shop is planning retirement, and two OEM accounts make up most of your revenue. That concentration is what any real buyer, or the company itself, will price the equity against, well before Carta or Forge enters the picture.

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Why two customers set the price, not the cap table platform

Buyer diligence in a contract manufacturing business centers almost entirely on customer concentration: how long each key OEM relationship has run, whether contracts are up for renewal soon, and what happens to volume if one account leaves. That diligence happens the same way whether Carta or Forge or neither is involved, and it's the real driver of what the founder's shares are worth, not a generic revenue multiple.

Where Carta genuinely helps

If the company has grown to include key employees with equity or phantom equity, and especially if a next-generation ownership transition is being planned in stages rather than all at once, Carta gives you one accurate record of who owns what and how it vests. That record matters more, not less, when a transition happens gradually over several years rather than in one transaction.

Why Forge doesn't reach a shop like this

Forge's marketplace connects sellers with outside institutional and accredited buyers who already track specific companies, and that network is built around recognizable venture-backed technology names, not precision contract manufacturers regardless of how well-run or profitable they are. Customer concentration risk is also exactly the kind of thing outside marketplace buyers are least equipped to diligence properly without deep industry knowledge, so even if a buyer showed interest, it's not obviously the right kind of buyer.

Financing a founder buyout without starving the shop of working capital

A bank-financed buyback secured by equipment, or an ESOP-adjacent structure that lets key employees gradually earn into ownership, both keep working capital available for tooling and payroll in a way a large lump-sum cash-out often doesn't. If debt financing is part of the plan, current bank prime around 6.75% and the fed funds rate around 3.63%1 are worth checking against whatever your bank quotes, since equipment-secured loans are often priced close to prime plus a spread.

What outside diligence, if it ever happens, actually focuses on

Even in an internal buyout with no outside buyer, run the exercise as if a real acquirer were doing diligence: how long has each key OEM relationship run, when does each contract renew, and is there anything in writing committing that customer to continue past the next renewal. This isn't paperwork for its own sake; it's the actual analysis that should set the discount applied to a straight revenue multiple, and it's useful information for the business regardless of the buyout.

Run the exercise as if a real acquirer were asking these questions:

  • How long each key OEM relationship has run, since longer relationships are easier to defend in diligence.
  • When each key customer contract comes up for renewal, and how soon that falls after the ownership change.
  • Whether anything in writing commits a key customer to future volume, beyond an informal relationship.
  • What happens to overall volume if one of the two main accounts leaves after the transition.

A realistic timeline for a founder's manufacturing buyout

Budget six to ten weeks if a straightforward buyback, longer, often three to six months, if an ESOP-adjacent structure is being considered, since that involves outside valuation and legal specialists. Start the customer-concentration review immediately, in parallel with deciding on structure, since that analysis feeds directly into price regardless of which financing path the company ultimately chooses.

Why concentration risk has to discount the price, not just get mentioned

The most common mistake is applying a standard industry revenue multiple without discounting for customer concentration, then being surprised when a key account leaves shortly after the ownership transition and the company can't service the debt taken on to fund the buyout. Say two OEM accounts represent most of revenue and neither contract has a long remaining term; pricing as if that revenue is as durable as a diversified customer base sets the buyout price, and any associated debt, too high relative to the real risk.

Discount explicitly for concentration, and size any debt financing conservatively against the diversified portion of revenue alone. A reasonable discipline is to run the buyout math twice, once assuming both key accounts renew on schedule and once assuming the larger of the two doesn't, and make sure the company can still service its buyout financing under the more conservative of the two scenarios before committing to it.

Terms worth negotiating given customer concentration

Negotiate a customer-retention holdback: a portion of the buyout price held back for six to twelve months and paid only if the key OEM accounts identified in diligence remain active customers through that window. This directly addresses the concentration risk this kind of shop carries without requiring anyone to guess at a discount percentage up front.

Also negotiate a consulting or advisory arrangement if the founding machinist has relationships with the OEM accounts that the remaining team hasn't yet fully absorbed, paid separately and for a defined period, so there's a real incentive for a smooth handoff rather than an abrupt one. And if an ESOP-adjacent structure is being considered instead of a straight buyback, get a specialist's involvement early, since the tax and valuation mechanics differ meaningfully from a simple share purchase.

Executive Capability Standard

What Good Looks Like

A contract manufacturer prices any ownership transition against real customer concentration risk, not a generic revenue multiple, and structures financing to preserve working capital for tooling and payroll.

Building The Capability (5-Stage Skill Ladder)

1. Learn:Document exactly how much revenue each key OEM account represents and when each contract renews.
2. Do Manually:Build a discounted price range with counsel that explicitly accounts for customer concentration risk.
3. Delegate:Assign a controller or fractional CFO to model buyout financing against working capital needs.
4. Automate:Track cap table and any key-employee equity in Carta as an ownership transition unfolds in stages.
5. Buy:Run the transaction through Carta once price and financing are settled, or bring in an ESOP specialist if that structure fits better.

How to Get Started

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Bizee

Keep the entity's statutory filings current through a multi-year ownership transition, since these deals often close in stages.

Visit Bizee→
Mercury

Hold buyout or ESOP-related funds in a Mercury account kept separate from the working capital your bank monitors.

Visit Mercury→

Frequently Asked Questions

How much should customer concentration affect the buyout price?

Significantly. If one or two OEM accounts make up most of revenue, price the equity with a discount that reflects the real risk of losing one, and be explicit with the departing owner about how that discount was calculated so it doesn't feel arbitrary.

Would an ESOP make more sense than a straight buyout here?

It can, particularly if the goal is transitioning ownership to key employees gradually rather than to an outside buyer, since it spreads the ownership transition over time and can be more tax-efficient for the founder. It's a more involved structure than a simple Carta-administered buyback, so bring in a specialist early if you're considering it.

Is there any realistic outside buyer path through Forge?

Not through Forge specifically. Its buyer network is built around companies its institutional buyers already track, and precision contract manufacturers aren't in that category. A strategic buyer already active in your OEM customers' supply chain is a more realistic outside path than a marketplace listing.

Sources

Where we quote a benchmark, we show its source. Other figures in this guide are estimates or general guidance, so check them against your own numbers.

  1. Effective federal funds rate (monthly average). FRED series FEDFUNDS; cross-checked vs Federal Reserve H.15 release (3.63% on 2026-06-30), 2026.

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