What does private equity mean?
Private equity is ownership of companies that do not trade on public exchanges, acquired and managed professionally through pooled investment funds.
The structure has three parties. Limited partners, pension funds, endowments, insurers, sovereign funds, and family offices, commit the capital. The general partner, the PE firm itself, raises the fund, finds and buys the companies, and manages them. The portfolio companies are the businesses the fund owns. A typical buyout fund has a life of about ten years: the first half deploying capital into acquisitions, the second half improving and exiting them.
The classic economics are two and twenty: a management fee near 2 percent of committed capital, and carried interest near 20 percent of profits above a hurdle rate. The fee keeps the lights on; the carry is why the model exists, and it pays only when companies are sold for more than they cost.
How does the buyout model actually work?
The standard acquisition is a leveraged buyout: the fund contributes equity, borrows the rest against the target’s own cash flow, and buys a controlling stake through a stack of holding companies. Debt amplifies returns in both directions, which is why sponsors underwrite cash flow durability before anything else.
Value creation over the hold comes from three sources, in roughly increasing order of respectability: paying down debt with the company’s cash flow, expanding the multiple by selling a bigger and better-positioned business than was bought, and genuinely growing EBITDA through pricing, product, professionalized operations, and add-on acquisitions. The lower-middle-market version leans hard on the last one: buy a platform, bolt on smaller competitors at lower multiples, and exit the combined business at a platform multiple. That arbitrage is the engine behind the consolidators that dominate deal flow in payments, SaaS, and services.
Exits close the loop: a sale to a strategic acquirer, a sale to another sponsor, or occasionally an IPO. The fund clock is real. A sponsor five years into a fund needs realizations, which affects both how it bids for new platforms and when it sells existing ones.
What does private equity look for?
Underneath every screening memo are the same questions. Is the revenue durable, recurring subscriptions, re-occurring transactions, contracted services, or does it have to be re-won every year? Is the customer base diversified, with no single account above roughly 20 percent? Does the business win for a reason that survives the founder stepping back? Is there a growth path, organic or acquisitive, that fits inside a hold period? And will the cash flow support acquisition debt without starving operations?
Companies that clear those tests attract sponsor interest almost regardless of sector fashion. Companies that fail one, concentration, founder dependence, volatile earnings, get priced down or structured around, with earnouts and escrows carrying the risk the diligence found. Sector matters at the margin: the sponsors most relevant to the firm’s clients are mapped in its buyer intelligence, including the private equity firms that buy SaaS companies.
What a founder should know before taking a sponsor bid
Three structural realities separate the sponsor bid from its headline number. Rollover: most sponsors want the founder to keep 10 to 30 percent of the equity, issued in the buyer’s holding structure behind the debt, so the second bite depends on the sponsor’s plan working. Structure: preferred returns, earnouts, escrows, and working capital mechanics move real money between the headline and the wire transfer. And competition: sponsors price against alternatives, so a founder negotiating alone with one fund gets the opening structure, while a founder with three bids gets the market. The firm’s guides to negotiating with private equity firms and private equity versus venture capital go deeper on both.
Questions founders ask
What is private equity in simple terms?
Investment capital put into companies outside public markets. Funds buy controlling stakes, improve the businesses over three to seven years, and sell them to strategics, other funds, or the public markets.
How do private equity firms make money?
Management fees near 2 percent keep the firm running; carried interest near 20 percent of profits is the prize, and it pays only on successful exits.
What does private equity look for in a company?
Durable, diversified cash flow, a moat that survives the founder, and a growth path that fits a hold period. Platforms that can compound through add-ons carry a premium in the lower middle market.
Is private equity a good buyer for a founder-led company?
They are the most active buyers in the $5 million to $300 million range and belong in nearly every process. The work is in structure: rollover, preferred returns, earnouts, and escrows determine what the headline number actually delivers.
Published August 25, 2026 by Jeff Barrington, Founder and Managing Director, Windsor Drake. Content on this page may be cited with attribution and a link to https://windsordrake.com/what-is-private-equity/