Platform acquisitionvsAdd-on acquisition
Two fundamentally different roles in a PE roll-up strategy. Platform businesses anchor the strategy; add-ons compound it.
The one-sentence difference
A platform is the first, largest, and most-strategically-important acquisition in a PE thesis — with management, systems, and geography that support future growth. Add-ons are subsequent acquisitions bolted onto the platform to expand geography, capability, or scale.
Side-by-side
| Dimension | Platform | Add-on |
|---|---|---|
| Order in strategy | First | Second and beyond |
| Typical size | $3–15M EBITDA in home services | Sub-$3M EBITDA typically |
| Multiple paid | Premium to size band (8–13× in home services) | Below platform multiple (4–8×) |
| Management retained | Yes — often as CEO of the platform | Owner often exits; management folded into platform |
| Systems | Platform's ERP, dispatch, CRM become the standard | Migrated onto platform systems within 90 days |
| Brand | Often retained (regional brand equity) | Often rebranded to platform brand |
| Financing | Anchors the LBO capital structure | Financed off platform's expanded credit facility |
| Multiple arbitrage | Sets the acquirer's cost basis | Creates immediate value by buying at lower multiple |
When to use which
The very first move in a PE thesis. The sponsor wants management depth, systems that scale, and geography that supports future add-on expansion.
Full article on Platform acquisition →After a platform is in place, the sponsor uses add-ons to fill in geography, add capability (e.g., HVAC platform adding plumbing), or increase route density.
Full article on Add-on acquisition →What they have in common
Both use standard M&A process (LOI, diligence, definitive agreement, close). Both trigger HSR at scale. Both are governed by the platform's buy-and-build thesis.
Frequently asked
Why do platforms trade at higher multiples than add-ons?
Platform businesses are unique — a PE sponsor needs one to execute the thesis, and there are only a handful of qualifying operators in any given market. Add-ons are more substitutable and typically smaller, so competitive tension is lower.
Can my business be a platform?
Generally yes if you're $3M+ EBITDA in a fragmented industry with strong management depth (a real number-two who can operate day-to-day) and modern systems (dispatch software, CRM, financial reporting cadence).