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

409A Valuations for Agency Roll-Ups and Earnout Deals

Say your digital marketing agency just sold a minority stake to a holding company that's rolling up performance agencies, and the deal includes an earnout tied to next year's revenue plus a retention option pool for your creative director and two senior media buyers. That combination, contingent consideration plus a fresh option grant, is exactly the scenario where Carta vs Shareworks for digital marketing and performance agencies actually gets decided.

Vendors Covered in this Article

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Why the earnout complicates the valuation first

An earnout means part of the deal's value depends on performance that hasn't happened yet, which an appraiser has to model as a contingent asset rather than counting it at face value. Whichever platform prices your 409A needs an analyst comfortable modeling earnout probability, not just plugging trailing revenue into a standard multiple, because a misread earnout skews the whole valuation.

Why the retention pool needs its own timeline

Creative and media talent at agencies are frequently recruited by competitors right after a roll-up deal is announced, since a change of ownership is exactly when clients and talent both start questioning stability. Price the retention pool as close to deal announcement as possible rather than waiting for the standard twelve-month refresh, since a delayed offer to your creative director carries less weight than one that lands the same week the deal is public.

What client concentration does to your comparable set

Say a single client makes up 20 to 30 percent of your agency's billings, for example, which is common enough at performance agencies serving a handful of large brands. An appraiser needs that concentration flagged explicitly, since losing one large account changes the growth story materially more for an agency than for a business with a broader client base, and a valuation that ignores this will look optimistic the moment a client leaves.

Where Carta and Shareworks actually differ for a rolled-up agency

For your standalone agency still holding its own option pool before full integration, Carta's straightforward workflow gets a retention grant priced and issued quickly, which matters when speed is the point. If the holding company plans to fold several acquired agencies onto one combined equity plan over the next few years, ask what platform the parent runs; Shareworks' multi-entity handling is built for exactly that kind of portfolio consolidation, and your agency's data will likely migrate there eventually regardless of what you pick today.

The follow-up worth having with the holding company

Ask directly how the parent intends to handle your creative team's options if the earnout isn't fully met. Some structures reduce the option pool proportionally, others keep grants intact and adjust only the cash portion of the deal. Get this in writing before your team signs anything, since the answer materially affects what those options are actually worth to the people holding them.

What to check before the holding company standardizes your systems

Roll-up deals typically come with a promise, sometimes explicit, sometimes implied, that the acquired agency will eventually migrate onto the parent's systems: accounting, payroll, and often the cap table platform too. Ask early rather than late whether that migration is planned for year one or year three, since the answer changes how much it's worth investing in your own agency's platform setup right now.

If migration is coming within the next twelve months, it's reasonable to keep your current setup lightweight rather than over-building a workflow you'll abandon shortly. If the holding company doesn't plan to consolidate platforms for several years, or ever, treat your agency's own choice as a longer-term decision and weigh it on its own merits rather than assuming it's temporary.

Either way, get the retention pool's vesting schedule and strike price documented cleanly before any systems migration happens. Moving cap table data between platforms occasionally introduces errors, a missed vesting date or a mismatched strike price, that are far easier to catch and fix before a transition than to unwind after your creative director notices their vesting summary looks wrong. Ask the holding company's finance team directly who owns data validation during the migration, since "the platform handles it automatically" is rarely the whole answer.

One more thing worth locking down before any migration: get the strike price and 409A valuation date for the retention pool in writing from your current provider, and keep that record independent of whichever system eventually houses the live cap table. If a data migration ever loses a field or mislabels a grant date, having the original documentation on hand turns a stressful reconciliation into a quick fix.

It's also worth asking who signs off on the migrated data before it goes live, your finance lead, the holding company's controller, or nobody in particular. Naming an owner for that sign-off, even informally, catches mismatches before a creative director's next vesting statement goes out with the wrong numbers on it.

Before the holding company folds you into its systems, confirm these points:

  • Ask whether migration onto the parent's accounting, payroll and cap table platform is planned for year one or year three.
  • Get in writing how the parent treats your creative team's options if the earnout isn't fully met, including whether the pool shrinks or only the cash portion adjusts.
  • Confirm the appraiser can model earnout probability instead of plugging trailing revenue into a standard multiple.
  • Flag client concentration explicitly so the valuation reflects the risk of losing one large account.
  • Price the retention pool close to deal announcement instead of waiting for the standard twelve-month refresh.
Executive Capability Standard

What Good Looks Like

An agency heading into a roll-up deal has its earnout terms modeled honestly in its 409A rather than assumed at face value, and a retention plan for key creative and media talent priced before competitors start recruiting.

Building The Capability (5-Stage Skill Ladder)

1. Learn:Understand exactly how your earnout terms will be treated in a 409A before you sign the deal, not after.
2. Do Manually:List your top clients by percentage of billings and keep that list current, since it's the first thing an appraiser will ask for.
3. Delegate:Assign one person to own retention conversations with key creative staff the same week a deal is announced.
4. Automate:Set the retention pool's valuation request to trigger automatically on deal announcement rather than waiting for a manual request.
5. Buy:Bring in deal counsel experienced with agency roll-ups specifically to review how your earnout interacts with equity compensation.

How to Get Started

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Frequently Asked Questions

How does an earnout affect the 409A valuation of retention options?

An appraiser typically models the earnout as a probability-weighted future payment rather than counting it at full face value, which usually results in a more conservative valuation than if the earnout were guaranteed. Ask your appraiser directly how they weighted the probability of hitting the target.

Should retention options be priced before or after the deal closes?

As close to deal announcement as the timeline allows. Waiting until after close, when competitors have already had weeks to recruit your key people, often means the retention offer lands too late to matter.

Does high client concentration always lower an agency's valuation?

Not automatically, but an appraiser should flag it and adjust the risk premium applied to future cash flows. Say one client accounts for 30 percent of revenue, for example: that level of concentration is inherently riskier than a broader base, and a defensible valuation reflects that.

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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