A platform is a company an investor intends to use as a base for further acquisitions. An add-on is a firm bought to expand that base, perhaps by adding a service, office, client group, or geographic reach. Those labels describe a plan. They do not tell you how the firms will be combined or whether the plan will work.
If you are considering selling to a platform, ask what role your firm is expected to play after closing. Will your office remain locally led? Who will control project acceptance, technical reviews, hiring, compensation, and client communication? Ask whether the brand, accounting system, software, benefits, and project procedures will change. Identify who will manage integration and whether that person has authority, time, and a funded plan. Ask how the buyer will handle differences in project delivery and professional practice across acquired firms.
Request the acquisition plan in practical terms. Which types of firms does the buyer expect to acquire? What capital will fund purchases and integration? How will the platform handle overlapping services or offices? Ask how leaders will resolve conflicts over clients, staff assignments, and investment priorities. If the buyer expects you to help integrate future firms, define the time commitment, decision rights, compensation, and what happens if the role changes.
Test claims about combined growth. Identify any expected benefits that depend on particular employees, contracts, client relationships, or licenses. Ask what evidence supports the forecast and what costs or disruption are expected. Do not assume a larger firm automatically creates more work or improves the value of your retained interest.
Review rollover equity separately from the cash portion of the offer. Confirm its class, voting rights, dilution terms, transfer restrictions, and exit provisions. Have transaction counsel, a CPA, and qualified valuation professionals review the structure and assumptions.
This is general education, not legal, tax, investment, or engineering advice; licensed PE judgment and local codes govern.
