Last Updated: 10/24/2025
Background: Private equity (PE) has an increasing presence in the insurance industry. The relationship between PE and the insurance industry has emerged in two directions. First, U.S. insurance companies—particularly life insurers—invest in PE to increase the return on their balance sheet portfolios. This activity accelerated during the extended period of low interest rates following the 2008 financial crisis and up until late 2021 (interest rates have since come down but remain well above the level in 2020 and early 2021).[1] Second, PE firms are increasingly investing in insurance companies and, in many cases, taking full ownership of the companies.
What Is Private Equity?
PE is capital put at risk to invest in businesses, business ventures, funds (such as loan funds), or other assets that are not listed on open, public exchanges (hence, “private”).1 PE firms are investment management companies, and the investments of these firms usually (but not always) take the form of a PE fund. Most PE funds are limited partnerships. A general partner (GP) manages the fund’s investments, and limited partners (LPs) are investors in the fund. LPs typically are sophisticated institutional investors or high-wealthy individuals.[2]
While PE funds, as they are known today, have existed since the 1980s, their growth has been exceedingly rapid, especially since the 2000s. In 1980, there were 24 PE funds; in 2015, there were roughly 8,300 PE funds; and by end-2023, the number of PE funds had soared to more than 23,000.[3] Perhaps more astounding is the growth in total assets under management (AUM).[4] (Refer to Figure 1) In 2000, PE firms in the aggregate held $610 billion in AUM. By 2024, that figure had surged to about $9.8 trillion. Preqin suggests that aggregate AUM will soar to about $12 trillion globally by 2029.[5]
Figure 1. Assets Under Management by Private Equity Firms

Source: Preqin
Note: The 2029 figure is a Preqin forecast at approximately $12T. See Preqin, Future of Alternatives 2029 (requires a subscription to Preqin Insights+).
PE funds carry several risks and are often characterized as “alternative investments."[6] PE funds face significant liquidity risk. Because they are not traded on open, public exchanges, they are not readily exchangeable for cash. Also, investors are subject to irrevocable commitments to the fund for a specified period. Traditionally, these commitments have not been tradable, but that is changing as the PE industry evolves.
PE fund investors also are subject to “blind risk.” This type of risk happens when investors’ commitments fund unknown, future investments. As with any equity investment, whether public or private, PE funds are also susceptible to market risk (or price volatility) and, therefore, the possibility of a realized loss of original capital (upon the fund’s termination). And as with any fund, whether public (e.g., a mutual fund) or private, there is selection risk or the risk that the GP does not make good investment choices. Finally, more unique to PE funds, and private funds in general, is that risk can be magnified, possibly several times over, by leverage. A leveraged investment uses borrowed capital to finance investment in an asset.
PE firms, if not exempt, are subject to regulation by the U.S. Securities and Exchange Commission (SEC) and possibly other authorities, such as the Financial Industry Regulatory Authority (FINRA) and the Commodity Futures Trading Commission (CFTC), but they are regulated differently from public investments.[7] In particular, PE investors do not benefit from some of the protections offered to public market investors.
PE-Owned Insurers
Since the financial crisis of 2008, PE firms have become some of the most active participants in insurance sector merger and acquisition (M&A) activity.[8] PE firms’ involvement in insurance dates back to the purchase of discounted blocks of business from legacy U.S. carriers in 2008–2009.[9] PE’s entrance into the insurance sector is largely due to the long-lasting low interest rate environment that proceeded the financial crisis, lasting until late 2021.[10] This low interest rate environment incentivized insurers to sell or reinsure blocks of business to improve profitability and to optimize capital management. PE firms offer insurers opportunities to achieve higher investment returns (albeit at higher risk) and gain access to capital and asset sources through PE capital markets networks. At year-end 2024, the number of private equity PE-owned U.S. insurers identified by the NAIC Capital Markets Bureau was 137, which was the same as year-end 2023. The number had increased to 139 by June 2025.[11]
PE firms’ activity in the insurance sector is not limited to buying blocks of business. PE firms also purchase insurance firms outright. PE firms are most interested in life and annuities insurance firms because of the predictable and steady returns from these companies.[12] In addition to adding diversifying assets to their portfolios, PE firms generate fee income from investment management fees. Life insurance companies accounted for about 95% of PE-owned insurers’ cash and invested assets at year-end 2021.[13] However, property/casualty (P/C) insurers also are attractive to PE firms because of renewals and minimal capital expenditures. PE interest in health insurance also is increasing.
[1] The reference interest rate here is the market yield on U.S. Treasury Securities at 10-Year Constant Maturity.
[2] Ibid. There are increasingly ways for lower-wealth individuals to invest in PE funds through private equity exchange-traded funds (ETFs) and funds of funds, which are much like mutual funds. The largest of these funds by a large margin is Hamilton Lane (HLNE), which is a “fund of funds.” The largest private equity ETFs are Invesco’s Global Listed Private Equity ETF (PSP) and ProShares’ Global Listed Private Equity ETF (PEX). These ETF’s have significantly lower net assets (comparable to equity) than do most ETFs.
[4] Preqin, PreqinPro, Charts and League Tables, Dry Powder and AUM, Assets Under Management Breakdown (requires a Preqin account). The largest PE firms, as measured by assets under management, are Carlyle Group ($169B in September 2024), Thoma Bravo ($166B), and KKR & Co. ($154B). See Neha Gupta and Franklin Silva, “Largest Private Equity Firms by AUM: PE Firms in 2025,” Investing In the Web.
[6] Op cit., Gilligan and Wright, 2020; Jennifer Johnson, “Private Equity,” Capital Markets Bureau Primer, Center for Insurance Policy & Research, NAIC.
[8] Op cit., Johnson, “Private Equity.”
[12] Op cit., Johnson, “Private Equity.”
[13] Jean-Baptiste Carelus, 2022, “Private Equity-Owned U.S. Insurers’ Investments Decrease as of Year-End 2021; Number of PE-Owned U.S. Insurers Increases,” Capital Markets Special Report, Capital Markets Bureau, NAIC.