A platform company is the first and largest business acquired in a buy-and-build strategy, serving as the operational and financial base onto which smaller add-on acquisitions are integrated. It carries the management, systems, and infrastructure the whole group runs on.
Worked example
| Role | SDE | Multiple paid |
|---|---|---|
| Platform (base business) | $1,200,000 | 4.0× |
| Add-on #1 | $220,000 | 2.7× |
| Add-on #2 | $180,000 | 2.7× |
| Combined group | $1,600,000 | re-rated ~4.0×+ |
Because the platform already has leadership and back-office in place, each add-on plugs in without duplicating overhead.
Why it matters when buying a business
Choosing the right platform sets the ceiling on the whole strategy. It needs strong management, clean systems, and headroom to absorb bolt-ons. Many buyers hold the platform in a holding company and pursue add-on acquisitions from there.
