--- title: "Buy and Build Strategy: How Platforms and Add-Ons Work" description: "A buy and build strategy uses a platform company to acquire smaller add-ons. Learn how it works, what add-on sellers get, and how integration goes." url: https://capstreet.multisites.ai/buy-and-build-strategy publisher: Capstreet phone: +1-713-332-2700 contact: https://capstreet.multisites.ai/contact --- # Buy and Build Strategy: How a Platform Company Grows Through Add-On Acquisitions A buy and build strategy starts with one well-run platform company and adds smaller businesses to it over time. The goal is a larger, more capable company than any single piece could be. It fits fragmented industries best. Owners of smaller firms can sell to a platform and often stay on. For ownersUpdated November 10, 202610 min read ![Downtown Houston skyline, home of Capstreet](https://capstreet.multisites.ai/_astro/houston-skyline.CI1wBZKY_syddD.webp) ## Platform first, add-ons next A platform is the base company. Add-ons are smaller acquisitions merged into it. ## Built for fragmented industries Many small firms and no clear leader. A platform can bring scale that none of them has alone. ## Add-on owners have choices You may sell and stay on, keep a stake, or hand off to a larger team. Terms vary by deal. ## Integration decides the result A deal on paper is not the finish. People, systems and customers must come together after closing. ## What is a buy and build strategy? It builds a larger company by buying one strong base company and adding smaller ones. The idea is simple. One company alone may be too small to win big contracts, hire senior leaders or invest in systems. Five or ten companies together can. Each piece brings customers, people or skills. The base company ties them together. Moonfare, citing a Bain & Company report, notes that “add-ons made up 72% of all North American buyouts in 2022 by deal count.” Capstreet uses this approach. Its [Capvalue Framework®](https://capstreet.multisites.ai/building-greatness) lists “Execute buy and build strategy” as one step in “Drive Business Transformation.” The firm also publishes two counts on its [our firm](https://capstreet.multisites.ai/our-firm) page: “50+ Platform Acquisitions” and “200+ Add-on Acquisitions.” This guide explains the strategy in plain terms for owners. It covers how it works, why it suits some industries, and what it means if you are asked to sell your company as an add-on. ## What is a platform company, and what is an add-on? A [platform company](https://capstreet.multisites.ai/glossary/platform-company) is the first acquisition in a sector, built to be the base for the others. An [add-on acquisition](https://capstreet.multisites.ai/glossary/add-on-acquisition) is any later purchase merged into that platform. The platform sets the standard. The add-on plugs into it. BD Emerson puts it this way: “A platform is the first acquisition in a sector, sized and staffed to be the base for the others. An add-on is any later acquisition merged into the platform.” Think of the platform as a trunk and the add-ons as branches. The trunk needs to be strong enough to carry the weight. A platform usually has these traits: - A capable leadership team that can run a larger company - Clean, reliable financial reporting - Systems that can scale, such as ERP and CRM tools - A clear place in its market - Room to grow, either by itself or through acquisitions An add-on usually has a narrower profile. It may bring a new region, a new customer group, a new product line or a skilled team. It may not have the leadership depth or systems to stand alone at a larger size. That is part of why it joins the platform. Platform company Add-on acquisition Role The base for the strategy A piece added to the base Timing First acquisition in a sector A later acquisition Leadership Full team able to lead a larger company Often a founder plus a small team Systems Built to scale May be simple or manual After the deal Sets standards for the group Merges into the platform’s systems Size Usually larger Usually smaller A company can be an add-on to one platform and a platform for another buyer. It depends on the buyer’s plan. ## Why are fragmented industries a good fit for buy and build? A [fragmented industry](https://capstreet.multisites.ai/glossary/fragmented-industry) has many small firms and no clear leader. That makes it a natural fit. A platform can combine several firms, gain purchasing power, cover more territory and spread costs across a larger base. Capstreet’s Distribution International case study shows the idea. It carries this headline: “Consolidated the Highly Fragmented Insulation Distribution Industry via a Buy and Build Strategy.” Fragmented markets share common signs: - Hundreds of local or regional firms, each with a small share - Owners who are near retirement and have no successor - Customers who want one supplier across many sites - Suppliers who give better terms to larger buyers - Little investment in modern systems, because each firm is too small to afford it In such a market, a combined company can offer something no single firm can. A national distributor can serve a customer in ten states. A regional services group can bid on contracts that a single shop cannot. A larger firm can also hire a finance leader, a sales leader and a technology leader. Not every industry fits. Buy and build works best where customers value reach, service quality or breadth, and where combining firms creates real gains. It works less well where each firm depends on one personal relationship, or where the cultures clash. Capstreet’s [Capvalue Framework®](https://capstreet.multisites.ai/building-greatness) starts with the line “Perform deep research to identify markets.” That step comes before any buying. ## What does a buy and build look like in practice? A Capstreet example Distribution International shows the full arc: leadership hires, a merger with a major competitor, then more acquisitions. This section describes what the company did, using Capstreet’s own case study. The case study states: “Capstreet originally invested in Thorpe Holdings (“Thorpe”), which consisted of an insulation distribution business and a refractory services business. We successfully spun out the refractory business from the insulation distribution business to maximize operating efficiency, and then merged Thorpe’s insulation distribution business with major competitor, Distribution International. The result was the company became a distributor of insulation, related specialty fabricated products, and accessory supplies in North America.” Capstreet lists the steps under “Path to Value Creation”: 1. Recruited CEO, VP Operations, HR Director and Controller 2. Recruited outside directors 3. Completed merger with major U.S. competitor 4. Completed two major Canadian acquisitions 5. Completed seven additional acquisitions under Capstreet ownership 6. Scale created significant buying power 7. Improved sourcing and implemented strategic pricing, driving significant margin expansion Read the list as a pattern, not a recipe. Leadership came first. A hiring list sits at the top. The merger and the acquisitions came next. Only then did the company use its scale to buy better and price smarter. Step in the case What the company did What it shows Leadership Recruited a CEO, VP Operations, HR Director and Controller Build the team before you buy Governance Recruited outside directors Add outside advice early Base Spun out the refractory business; merged with a major competitor Focus the platform Growth Two major Canadian acquisitions; seven more Add reach and scale Operations Improved sourcing; strategic pricing Use scale to run better The company was sold in 2014 to a financial sponsor. Read the full account on the [Distribution International case study](https://capstreet.multisites.ai/cases/distribution-international). Capstreet’s other case studies, such as [EADS](https://capstreet.multisites.ai/cases/eads) and [GHX](https://capstreet.multisites.ai/cases/ghx), also describe add-on work. See all of them on the [case studies](https://capstreet.multisites.ai/case-studies) page. This case study is for information only. It is not a recommendation of any investment, and it does not predict what any other company will do. ## How does an add-on seller benefit? If you own a smaller company, a platform can offer a way to sell, keep a role and join a bigger team. You may get liquidity now and a chance to share in later growth. The benefits depend on the deal. These are the common ones: 1. **Liquidity.** You turn part or all of your ownership into cash. 2. **A larger stage.** Your customers and team gain access to a bigger company, more products and more locations. 3. **Shared resources.** Finance, HR, technology and purchasing support may come from the platform. 4. **A role, if you want one.** Some founders lead a division or region. Others hand off after a transition. 5. **A chance to share in later growth.** Some add-on deals include equity in the combined company. First Citizens Wealth writes that “Many owners choose to retain a minority equity stake in the company, giving them a chance to participate in the equity upside when the PE firm eventually exits the business.” That is the [second bite of the apple](https://capstreet.multisites.ai/glossary/second-bite-of-the-apple). There are trade-offs. You give up some control. Your company’s name, systems and reporting may change. You may report to a platform leader instead of a board of your own. Ask about each point before you sign. If you are considering this path, read about [rollover equity](https://capstreet.multisites.ai/guides/rollover-equity), [earnouts](https://capstreet.multisites.ai/guides/earnouts) and the [letter of intent](https://capstreet.multisites.ai/guides/letter-of-intent). They explain the deal terms you are likely to see. ## How does integration work after an add-on? Integration combines the add-on’s people, customers, systems and reporting with the platform. It works best when planning starts before closing, each task has an owner, and leaders talk to employees and customers early and often. Here is a typical order of work. Details change from deal to deal. Phase Focus Examples Before closing Plan Name an integration lead; list systems, contracts and key people Day 1 Communicate Tell employees and top customers what changes and what does not First 90 days Stabilize Keep service steady; set reporting; fix urgent gaps Months 3 to 12 Combine Move to shared systems; align pricing, purchasing and processes Ongoing Improve Share best practices across the group Capstreet’s team page shows how seriously the firm treats this work. Anja Timmerman, SVP, Integration & Program Management, Operating Executive Group, “works with the investment team and portfolio companies on add-on acquisition planning and integration.” Capstreet’s [Capvalue Framework®](https://capstreet.multisites.ai/building-greatness) also includes a step to “Define M&A roadmap” during the first six months of ownership. What goes wrong? Three things, most often. - **Culture clash.** People feel the new owner does not respect how they work. - **Customer loss.** Customers hear nothing or hear mixed messages. - **Rushed systems.** Teams force a new system on top of old habits without training. Good integration avoids all three. It treats the add-on’s team as people to keep, not costs to cut. ## What does Capstreet look for in a platform? Capstreet looks for “Entrepreneur-owned businesses services companies” with “$3 to $15 million of EBITDA.” It describes “Primarily majority investments” and says “Entrepreneurs reinvest alongside Capstreet.” It also lists “Ability to apply the Capvalue Framework®” as a criterion. Here is the full list from the firm’s [what we do](https://capstreet.multisites.ai/what-we-do) page: - Entrepreneur-owned businesses services companies - $3 to $15 million of EBITDA - Primarily majority investments - Entrepreneurs reinvest alongside Capstreet - Ability to apply the Capvalue Framework® The firm also describes the owners it wants to meet: “a tenured team of owners or managers seeking a majority capital partner, with solid financials, a defensive business model, untapped growth potential, and competitive advantages within their market niche.” Capstreet lists “M&A opportunities” among growth traits it looks for in its investment parameters. For a platform, that means room to add more companies in its market. [EBITDA](https://capstreet.multisites.ai/glossary/ebitda) is a measure of operating earnings. Read our [deal criteria](https://capstreet.multisites.ai/deal-criteria) page for the full detail, and the guide to [lower middle market private equity](https://capstreet.multisites.ai/lower-middle-market-private-equity) for context. ## Should I sell to a platform or hold out for a bigger buyer? It depends on what you want. A platform may offer a role, rollover equity and a team that knows your market. A larger buyer may offer more cash up front but fewer ties. Questions to ask yourself: - **What do I want after closing?** If you want to keep working, a platform may suit you. - **Who will run my company?** If your team matters to you, ask how the platform treats add-on staff. - **How do I want to be paid?** Cash at closing, a note, an earnout and rollover equity each carry different risks. See [how private equity values a business](https://capstreet.multisites.ai/guides/how-private-equity-values-a-business). - **How much time do I have?** Waiting for a bigger buyer may pay off, or it may not. A company that depends on you loses value as you age. - **Do I know the buyer?** Talk to other founders the buyer has worked with. Also compare buyer types. A [strategic buyer](https://capstreet.multisites.ai/glossary/strategic-buyer) may pay for synergies and absorb your firm. A [financial buyer](https://capstreet.multisites.ai/glossary/financial-buyer) with a platform may do the same with a different plan. Read [private equity vs strategic buyer](https://capstreet.multisites.ai/compare/private-equity-vs-strategic-buyer) to see the difference. If you plan to sell in the next few years, read the broader guide on [business succession and exit options](https://capstreet.multisites.ai/business-succession-and-exit-options). It compares family, management, employee and outside sales side by side. ## What should I do if a platform company wants to buy my business? Slow down and prepare. Get your financials in order, hire a lawyer and a tax adviser, and ask for references from owners the buyer has bought from. Do not sign anything that blocks other talks until you understand the terms. Use this short checklist: 1. **Know your goals.** Cash, role, team, legacy. Write them down. 2. **Clean your numbers.** A [quality of earnings](https://capstreet.multisites.ai/guides/quality-of-earnings) review can show buyers what your earnings really are. 3. **Ask for references.** Talk to owners who sold to this buyer before. 4. **Read the letter of intent with care.** See the [letter of intent](https://capstreet.multisites.ai/guides/letter-of-intent) guide and the [exclusivity period](https://capstreet.multisites.ai/glossary/exclusivity-period) glossary entry. 5. **Plan for [due diligence](https://capstreet.multisites.ai/guides/due-diligence-checklist-for-owners).** Expect detailed questions about customers, contracts, people and finances. 6. **Plan your team’s story.** Decide what you will tell employees, and when. 7. **Use advisers.** Read how to work with an [investment banker or adviser](https://capstreet.multisites.ai/guides/working-with-an-investment-banker-or-advisor). If you want to understand private equity buyers more fully, start with [how to sell your business to private equity](https://capstreet.multisites.ai/sell-your-business-to-private-equity). ## Next step Read the [deal criteria](https://capstreet.multisites.ai/deal-criteria) to see if your company fits, or learn how the firm builds companies on the [Capvalue Framework®](https://capstreet.multisites.ai/building-greatness) page. To talk it through in confidence, call 713-332-2700, email [connect@capstreet.com](mailto:connect@capstreet.com) or use the [contact page](https://capstreet.multisites.ai/contact). ## Frequently asked questions ### What is a buy and build strategy? A buy and build strategy is a plan to create value by buying one platform company and then adding smaller companies to it. The platform supplies leadership, systems and capital. The add-ons supply customers, skills and reach. ### What is the difference between a platform and an add-on? A platform is the first acquisition in a sector, sized and staffed to be the base for the others. An add-on is any later acquisition merged into the platform. The platform sets the standards for people, systems and reporting. The add-on plugs into them. ### Why does buy and build work best in fragmented industries? In a fragmented industry, many small firms compete and none has scale. A platform can buy several of them, combine purchasing, cover more territory and spread costs over a bigger base. Capstreet's Distribution International case describes this: a buy and build strategy consolidated the highly fragmented insulation distribution industry. ### Can I stay on if I sell my company as an add-on? Often yes, but it depends on the deal. Some add-on owners stay to lead a region or a division. Others leave after a transition. Ask the platform's team early about your role, your team, your brand and any equity you may roll into the combined company. ### How does integration work after an add-on closes? Good integration starts before closing. The platform sets a plan for people, systems, customers and reporting, then assigns an owner for each part. Early weeks focus on communication and keeping customers calm. Later steps combine systems and processes. Plan for it to take months, not days. ### Should I sell to a platform or hold out for a bigger buyer? It depends on your goals. A platform may offer a fair price, a role and a chance to share in later growth. A larger buyer may offer more cash up front but fewer ties. Compare total outcomes, including taxes, your role and what happens to your team. ## Terms on this page - [Second Bite of the Apple](https://capstreet.multisites.ai/glossary/second-bite-of-the-apple) - [Fragmented Industry](https://capstreet.multisites.ai/glossary/fragmented-industry) - [Lower Middle Market](https://capstreet.multisites.ai/glossary/lower-middle-market) - [Quality of Earnings](https://capstreet.multisites.ai/glossary/quality-of-earnings) - [Add-On Acquisition](https://capstreet.multisites.ai/glossary/add-on-acquisition) - [Exclusivity Period](https://capstreet.multisites.ai/glossary/exclusivity-period) - [Letter of Intent](https://capstreet.multisites.ai/glossary/letter-of-intent) - [Platform Company](https://capstreet.multisites.ai/glossary/platform-company) - [Financial Buyer](https://capstreet.multisites.ai/glossary/financial-buyer) - [Rollover Equity](https://capstreet.multisites.ai/glossary/rollover-equity) ## Sources 1. [BD Emerson: Buy and Build Strategy](https://www.bdemerson.com/article/buy-and-build-strategy) 2. [Moonfare: Buy and Build Strategy](https://www.moonfare.com/us/glossary/buy-and-build-strategy) 3. [Capstreet: Distribution International case study](https://capstreet.com/cases/distribution-international/) 4. [Capstreet: Distribution International case study](https://capstreet.com/cases/distribution-international/) 5. [Capstreet: Our Firm](https://capstreet.com/our-firm/) 6. [Capstreet: What We Do](https://capstreet.com/what-we-do/) 7. [First Citizens Wealth: Selling your business to a private equity firm](https://www.firstcitizens.com/wealth/insights/business-planning/selling-your-business-to-pe-firms) Written by Capstreet and checked against the sources above on November 10, 2026. Market figures and deal practice change, and nothing here is legal, tax or investment advice. Ask your own advisers before you act. ## Keep reading - [Lower middle market private equity: what owners should knowLower middle market private equity means investing in smaller private companies, often founder-owned, with a few million dollars in earnings. Firms buy a stake, add management and capital, and grow the business. Definitions of the market vary by firm. Capstreet looks for companies with $3 to $15 million of EBITDA.](https://capstreet.multisites.ai/lower-middle-market-private-equity) - [How to sell your business to private equitySelling to private equity means a firm buys most of your company, usually with a mix of cash at close and equity you keep. You work through an intro call, a data request, a letter of intent, diligence and a close. Most owners stay on and invest alongside the buyer.](https://capstreet.multisites.ai/sell-your-business-to-private-equity) - [Business Succession and Exit Options: How to Choose the Right Next Step for Your CompanyOwners have five main exit paths: transfer to family, sell to management, sell to employees through an ESOP, sell to a strategic buyer, or partner with private equity. Each trades price, speed, control and legacy differently. Start planning at least three to five years before you want to step back.](https://capstreet.multisites.ai/business-succession-and-exit-options) - [Capstreet deal criteria: the companies we look forCapstreet looks for entrepreneur-owned business services companies with $3 to $15 million of EBITDA. We make primarily majority investments, and entrepreneurs reinvest alongside Capstreet. We want a tenured team, solid financials, a defensive business model, untapped growth potential and a niche advantage. We invest across 12 industries.](https://capstreet.multisites.ai/deal-criteria) - [What Is a Platform Company? A Plain Guide for OwnersA platform company is the first business a private equity firm buys in a sector. It is sized and staffed to be the base for later purchases. Smaller businesses bought afterward are add-ons that merge into the platform. Owners can sell as either one, and the role changes the deal.](https://capstreet.multisites.ai/insights/what-is-a-platform-company) - [EBITDA multiples in the lower middle market: what buyers paid and why prices differIn the first nine months of 2025, GF Data reported private equity buyers paying an average of 6.4x EBITDA for deals with enterprise value of $10 million to $25 million, and 6.8x for $25 million to $50 million. Averages hide wide gaps. Earnings quality, customers and management move your multiple.](https://capstreet.multisites.ai/guides/ebitda-multiples-lower-middle-market) ## Ready to get started? Let’s talk. Tell us about your company and what you want next. Conversations are private, and there is no obligation. [Start a conversation](https://capstreet.multisites.ai/contact) [(713) 332-2700](tel:+1-713-332-2700)[connect@capstreet.com](mailto:connect@capstreet.com) ![Capstreet team members at a Houston elementary school for Houston Reads Day](https://capstreet.multisites.ai/_astro/houston-reads-day.DxNd9bIr_tggWP.webp)