409A Valuation & Cap Table Audit Platforms3 min readUpdated September 2026

409A Valuation for a Precision Contract Manufacturer

Take a precision contract manufacturer with two customers accounting for most of its revenue, a shop floor full of equipment it financed over the last five years, and a private equity group circling for a recapitalization. That combination drives its 409A valuation more than anything a cap table platform's dashboard will show you, and it's worth working through before you pick a tool or order a valuation.

Vendors Covered in this Article

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Customer Concentration Is the First Thing an Appraiser Will Flag

Say a manufacturer gets 60% of revenue from two customers. That concentration adds real risk, since losing one contract could materially change the business, and an appraiser will typically apply a higher discount rate to account for it. If you're working to diversify your customer base, document the pipeline of new accounts you're pursuing so the appraiser has a fuller picture than last year's revenue mix alone.

Equipment-Heavy Balance Sheets Pull In the Asset Approach

A shop full of CNC machines, financed over multi-year terms, gives an appraiser a real floor value that pure income-approach businesses don't have. That's usually good news for a manufacturer, since it puts a bound under a valuation that might otherwise swing hard on a single bad quarter, but it also means your equipment schedule and remaining loan balances need to be current and accurate before the 409A process starts.

Customer-Owned Tooling Is a Real Split in the Asset Base

Not every machine on your shop floor belongs to you. Many precision manufacturers build parts against tooling and dies that the customer paid for and owns outright, even though the equipment sits on your floor and your team maintains it. An appraiser using the asset approach needs that distinction spelled out, because customer-owned tooling doesn't belong in your asset base even though it's essential to running the job, and counting it would overstate what the business itself is worth.

Pull together a simple list before your next valuation: which tooling and fixtures you own outright, which you financed and are still paying down, and which belongs to a customer under a bailment or consignment arrangement. A shop that mixes all three without a clear record makes the appraiser's job harder and risks a number that either overstates or understates the equipment-based floor value discussed above. It's also worth flagging to your CPA, since customer-owned tooling sitting on your premises can raise its own separate accounting and insurance questions outside the 409A process itself.

A Recapitalization or PE Interest Changes the Timeline, Not Just the Number

If a private equity group is in serious conversations about a recapitalization or minority investment, that can be a material event that calls for a fresh 409A regardless of when your last one was ordered, so ask your appraiser or attorney before granting options. Waiting until the deal closes to update your valuation risks granting options at a strike price that no longer reflects the company's actual value, which is exactly the kind of gap the IRS safe harbor rules are meant to prevent.

Matching the Cap Table Platform to Your Ownership Structure

A manufacturer that's still closely held by its founders, with options limited to plant management and a few key engineers, fits Carta's simpler single-entity model reasonably well. Once a PE group takes a stake and brings preferred stock, a management incentive plan, and waterfall modeling into the picture, or if the business operates through multiple facilities under separate legal entities, Shareworks' institutional-grade administration becomes the more defensible choice, particularly if the sponsor's other portfolio companies already standardize on it.

A Worked Example: Valuing the Business Around an Equipment Refresh

Imagine a precision manufacturer that just financed a new wave of CNC equipment, tripling its capacity but leaving utilization low for the first year while it ramps up new business to fill that capacity. A naive valuation that just looks at trailing revenue against the new, much larger asset base could understate the company's forward value, since the equipment is there but the revenue to match it hasn't caught up yet. Walk your appraiser through the ramp plan and expected utilization curve explicitly, rather than assuming they'll infer it from the balance sheet alone.

The common mistake is ordering the valuation too soon after a major capacity expansion, before there's enough post-expansion performance data to support the growth story. If timing allows, waiting one or two quarters into the ramp, or at minimum documenting the ramp plan in detail, tends to produce a more defensible number.

Where Management Incentive Plans Complicate the Cap Table

Once a PE sponsor is involved, plant and engineering leadership equity often shifts from a simple option pool to a management incentive plan with its own vesting hurdles, sometimes tied to EBITDA targets or a future exit rather than time alone. That structure needs a 409A that accounts for the liquidation preference stack ahead of common equity, since ignoring the preferred stack would overstate what common shares, including the MIP, are actually worth today. This is one of the clearer cases where Shareworks' experience with layered capital structures across sponsor-backed portfolio companies shows up in practice.

Prepare these items before you order a valuation:

  • Document the pipeline of new accounts you are pursuing so the appraiser sees more than last year's customer mix.
  • Keep your equipment schedule and remaining loan balances current, since the asset approach sets a floor under the valuation.
  • Separate customer-owned tooling from your own assets so the asset base isn't overstated.
  • Ask your appraiser or attorney about a fresh 409A once serious recapitalization or private equity talks begin, before granting any options.
  • If a management incentive plan follows a deal, make sure the valuation accounts for the liquidation preference stack ahead of common equity.
Executive Capability Standard

What Good Looks Like

Good practice for a contract manufacturer's equity program means the equipment and financing schedule feeding the asset approach is always current, customer concentration is documented honestly rather than glossed over, and the 409A refresh happens ahead of any recapitalization conversation, not after it.

Building The Capability (5-Stage Skill Ladder)

1. Learn:Pull your current equipment schedule and remaining loan balances together in one place so it's ready whenever a valuation is ordered.
2. Do Manually:Track customer concentration by percentage of revenue each quarter, even informally, so you can show the trend line to an appraiser.
3. Delegate:Assign a controller or plant finance lead to flag any new customer contract or equipment financing that might count as a material valuation event.
4. Automate:Move option administration onto Carta or Shareworks once grant volume among plant management and engineering leads grows past what a spreadsheet handles well.
5. Buy:Engage a valuation firm and, if relevant, outside deal counsel early in any PE recapitalization conversation rather than after terms are set.

How to Get Started

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Frequently Asked Questions

Does customer concentration always lower our valuation?

It typically raises the discount rate applied in an income-approach valuation, which pulls the value down relative to an otherwise identical business with a diversified customer base. The exact impact depends on contract length, switching costs, and how sticky those customer relationships actually are.

Do we need a new 409A every time we finance new equipment?

Not usually. Routine equipment financing on its own generally isn't a material event, but a significant expansion that changes your capacity or growth trajectory could be worth flagging to your CPA as a possible trigger for an earlier refresh.

How soon after starting PE recapitalization talks should we update our 409A?

Get ahead of it rather than waiting for a signed term sheet. Once serious, substantive negotiations are underway, that's typically treated as a material event, and your attorney or valuation firm can help you time the refresh so option grants stay defensible.

About the numbers

This guide doesn't quote a sourced benchmark. Figures in it are estimates or general guidance, so check them against your own numbers.

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