A private equity firm is an investment company that raises pooled capital from institutional investors and wealthy individuals, uses that money to buy companies outright or take controlling stakes in them, works to make those companies more valuable over several years, and then sells them for a profit. The firm earns money in two ways: an annual management fee charged to its investors, and a share of the profits when investments pay off. Private equity manages trillions of dollars globally, but federal securities rules keep the funds themselves closed to most retail investors.
How a Private Equity Firm Is Organized
Almost every private equity fund is structured as a limited partnership with two roles. The private equity firm itself serves as the General Partner, or GP. The GP makes all investment decisions, runs due diligence on potential acquisitions, and actively manages the portfolio companies once they are bought. The outside investors who supply the capital are the Limited Partners, or LPs. LPs are typically pension funds, university endowments, insurance companies, sovereign wealth funds, and high-net-worth individuals.
The Limited Partnership Agreement, or LPA, is the contract that governs the entire relationship. It spells out the fund’s investment strategy, fee structure, profit-sharing formula, and the rules for when and how the GP can call capital from its investors. The GP also commits its own money to the fund, usually between 1% and 5% of the total. That personal stake is meant to keep the GP’s incentives aligned with the investors who wrote much larger checks.
LPs don’t hand over all their money on day one. They make a commitment, and the GP draws down that committed capital through “capital calls” as deals come together. LPs are legally required to fund those calls when they arrive. If an LP fails to do so, the LPA typically allows the GP to impose penalties ranging from interest charges on the unpaid amount to outright forfeiture of the LP’s entire fund interest.
A typical PE fund has a fixed lifespan of roughly 8 to 12 years. The first few years are the investment period, when the GP is actively buying companies. The remaining years focus on improving those businesses and eventually selling them to return profits to the LPs. Extensions of a year or two beyond the original term are common when portfolio companies need more time to reach peak value.
How a Private Equity Firm Makes Companies More Valuable
Finding and Buying a Target
The GP screens hundreds of potential targets, looking for companies where operational improvements, better management, or a smarter capital structure could unlock significant value. Due diligence is exhaustive. The firm reviews financial statements, customer contracts, supply chains, management quality, regulatory risks, and competitive positioning. The point is to figure out what the company is truly worth and whether the GP can realistically make it worth more.
Once the target is chosen, the acquisition is formalized through a purchase agreement. Most buyouts are financed with a combination of equity from the fund and a substantial amount of borrowed money. The debt is typically secured by the acquired company’s own assets and cash flows, not by the PE fund itself. This leverage amplifies returns when things go well and magnifies losses if the company underperforms. When a mature company is bought this way, the deal is called a leveraged buyout, or LBO, and it is the strategy most people associate with private equity.
Not every deal is an LBO. Some firms specialize in growth equity, taking minority stakes in companies that already have a proven product and established revenue but need capital to scale. Others focus on distressed investing, buying troubled companies at steep discounts and attempting to turn them around.
Improving the Business
The holding period is where a private equity firm earns its keep. It usually lasts three to seven years. During this time, the GP works closely with the company’s management team on improvements: cutting unnecessary costs, renegotiating supplier contracts, professionalizing management, expanding into new markets, and making smaller “add-on” acquisitions to build scale. The GP may also restructure the balance sheet, refinancing expensive debt or optimizing working capital.
PE firms typically install their own board members and sometimes replace senior executives. The level of involvement is far more hands-on than what a public-market shareholder could ever exercise. This operational control is the defining feature that separates private equity from passive investing.
Exiting the Investment
The GP eventually sells the company to realize a return and distribute profits to the LPs. Three exit routes are most common:
- A trade sale to a strategic buyer, often a larger corporation in the same industry that values the target’s customers, technology, or market position. This is the most common exit.
- A secondary buyout, meaning a sale to another PE firm that then runs its own value-creation playbook. These deals have become increasingly common and sometimes draw criticism when companies are passed between financial buyers without obvious operational improvement.
- An initial public offering, listing the company’s shares on a stock exchange. IPOs can produce large returns but are less frequent because they depend on favorable market conditions and involve significant regulatory and underwriting costs.
The exit is what determines whether the fund made or lost money on a given deal. GPs time exits carefully, and a weak exit market can force a fund to hold companies longer than planned.
How a Private Equity Firm Makes Money
A PE firm earns income through two channels, and both are paid by the LPs.
The first is the management fee. This annual charge covers the firm’s operating costs: salaries, office space, travel, and deal-sourcing expenses. During the investment period, the fee is typically 1.5% to 2% of the LPs’ total committed capital. After the investment period ends, most funds reduce both the rate and the base it’s calculated on, switching from committed capital to invested capital. The median post-investment-period fee is closer to 1.5%. The management fee gets paid every year regardless of performance, which is one reason running a PE firm is a lucrative business even before profits are counted.
The second and far more consequential component is carried interest, commonly called “carry.” This is the GP’s share of the fund’s net investment profits, almost always set at 20%. But the GP doesn’t collect carry on the first dollar of profit. The LPA typically requires the fund to first return all invested capital to the LPs and then earn a preferred return, known as the hurdle rate, before carry kicks in. Most PE funds set the hurdle at 8% annually. Only after investors have cleared that threshold does the GP start taking its 20% cut of additional profits.
Private Equity Versus Venture Capital
People often conflate private equity with venture capital, but they target fundamentally different companies. PE firms buy mature businesses with established cash flows and proven models. Venture capital firms invest in early-stage startups that may have little or no revenue but show high growth potential.
The ownership structure differs too. PE firms almost always take a majority or full controlling stake, giving them the authority to reshape the business from the top down. VC firms typically buy a minority stake and leave the founders in charge. PE deals rely heavily on debt to finance acquisitions, while VC investments are funded almost entirely with equity. And the risk profiles diverge sharply: a VC portfolio expects most investments to fail while a few home runs carry the fund, whereas a PE portfolio aims for solid returns across the majority of its deals.
Who Can Actually Invest
PE funds are not open to the general public. Because they are exempt from registering as investment companies under federal law, they restrict participation to investors who meet certain financial thresholds. The most common requirement is that an investor qualifies as an “accredited investor” under SEC rules. For an individual, that means a net worth above $1 million (excluding your primary residence), or annual income exceeding $200,000 individually or $300,000 jointly with a spouse in each of the prior two years with a reasonable expectation of the same in the current year.1eCFR. 17 CFR 230.501 – Definitions and Terms Used in Regulation D
Holders of certain professional licenses, including the Series 7, Series 65, and Series 82, also qualify regardless of income or net worth. Larger funds often set an even higher bar, requiring investors to be “qualified purchasers,” which generally means individuals with at least $5 million in investments or institutions with at least $25 million. The practical result is that direct PE investment remains out of reach for most retail investors, though some exposure is available indirectly through publicly traded PE firms, feeder funds, or defined-benefit pension plans that allocate to the asset class.
The Risks That Define the Asset Class
The most important thing to understand about private equity is that your money is locked up. Unlike stocks or bonds, you cannot sell a PE fund interest on an exchange. If you commit capital to a ten-year fund, you should expect that capital to be unavailable for roughly that entire period. A secondary market does exist where LPs can sell their fund interests to specialized buyers, but these transactions typically close at a discount to the fund’s reported net asset value, and the market is not always liquid enough to accommodate every seller.
Beyond illiquidity, private equity carries several other risks worth understanding:
- Leverage risk. The heavy use of debt in buyouts magnifies both gains and losses. A portfolio company that misses its cash flow projections may struggle to service its debt, potentially leading to restructuring or bankruptcy.
- Capital call risk. LPs are legally obligated to fund capital calls. Failing to do so can trigger penalties including forfeiture of the entire fund interest. An LP who commits more than it can comfortably fund faces real consequences.
- Valuation uncertainty. PE fund holdings are not marked to market daily. The GP reports estimated valuations quarterly, but these figures involve judgment and may not reflect what the companies would actually sell for.
- Manager risk. Returns vary enormously between top-performing and bottom-performing PE funds. Picking the right GP matters far more in private equity than in public-market investing, where index funds offer broad diversification cheaply.