Who owns ThriftBooks? Ownership structure explained (2026)

ThriftBooks is the largest independent online seller of used books, yet almost nothing about its ownership is visible from the outside. There is no ticker, no published valuation, and no list of venture rounds. Control sits with two private-capital firms that bought the business more than a decade ago and have kept its finances private ever since.

That structure is unusual for a company of its scale. ThriftBooks moves tens of millions of books a year through automated warehouses, competes directly with Amazon, and runs a loyalty program with millions of members. Most businesses that reach this size either go public or get absorbed by a larger platform. ThriftBooks did neither.

Understanding who owns ThriftBooks means separating the founders who built the software and supply chain from the private-equity owners who have financed and governed it since 2011. The people who run it today are professional managers, not the original founders, and the economics belong to a small group of private investors rather than a public shareholder base.

ThriftBooks was founded in the summer of 2003 by Daryl Butcher, Jason Meyer, and Hector Rivas, who joined the other two within the first few months. Butcher, a software architect, wrote the proprietary systems that let the company list, price, and reprice large volumes of used books across multiple online marketplaces at once. Rivas built the early inventory by buying books in bulk from charities such as Goodwill, the Salvation Army, and Value Village.

The company is headquartered in Tukwila, Washington, just south of Seattle. Its core business is buying used books at low cost, grading and listing them at scale, and reselling them through its own site and third-party marketplaces, including Amazon and eBay, though unlike eBay's widely held public ownership its own cap table stays private. It also sells DVDs, CDs, video games, and other used media, and runs a Reading Rewards loyalty program. The business model rests on economies of scale and heavy warehouse automation rather than on any single storefront.

ThriftBooks is private and does not release audited results. Industry trackers estimate that its main site generated roughly $314 million in 2025, and the company is reported to have sold more than 295 million used books since it started. An earlier CEO interview put annual sales around $150 million, which shows how much the business has grown over the past decade. These figures come from third parties or dated interviews, so they should be read as estimates rather than confirmed numbers.

ThriftBooks Global, LLC is privately held and has never been listed on a stock exchange. It has no ticker symbol, no publicly reported market cap, and no obligation to file financial statements. Since 2011 it has been owned by private-capital firms, which means its ownership and finances are disclosed only to the extent those owners choose. That opacity is normal for a private, sponsor-backed company and is the main reason outsiders rely on estimates for its revenue and profitability.

The founders built the company but do not appear to control it today. After private investors acquired ThriftBooks in 2011, control passed to those firms, and the current chief executive is a former board member rather than a founder. Whether Butcher, Meyer, or Rivas retained any minority stake after the 2011 transaction is not publicly disclosed. ThriftBooks is a private LLC that does not report its cap table, so any claim about founder equity today would be inferred rather than confirmed. What is documented is that the founders created the software and supply chain that still define the business, and that Rivas ran it as CEO in its first decade.

ThriftBooks does not have a venture-capital funding history in the usual sense. It grew through its own operations in its early years, then changed hands in a single private-equity transaction in 2011 rather than through a series of priced rounds. The table below sets out the ownership milestones that actually shaped the company, in place of the funding rounds a venture-backed startup would list.

Two firms have owned ThriftBooks since 2011. KCB Private Equity is the private-equity arm of KCB Management, an asset manager focused on small and medium-sized businesses, largely in the western United States. It leads the equity ownership of the company. Midwest Mezzanine Funds, which invests through MMF Capital, provided subordinated debt and a co-investment in equity as part of the same 2011 deal. Midwest Mezzanine describes itself as a provider of junior capital to lower-middle-market companies in the United States and Canada.

Neither firm has disclosed how the equity splits between them, and neither publishes ThriftBooks financials. Because both are private investors rather than strategic buyers, their interest is financial: they aim to grow the business and eventually realize a return, whether through a sale to another owner or a later transaction. No such exit has been publicly reported, so the 2011 owners appear to remain in place.

There is no public company structure to describe. ThriftBooks has no shares trading on any exchange, no SEC reporting, and no public float. It has also given no public signal of an intent to go public. Any valuation figure attached to it is a third-party estimate, because the company has never been priced by a public market or a disclosed financing round. Pinning a number on a business like this means running a private-company valuation from estimated revenue and margins rather than reading it off a screen.

Ken Goldstein is chairman and chief executive officer of ThriftBooks, a role he has held since March 2022. He joined the company's board in 2013, so he moved from director to operating leader rather than arriving as an outsider. He is not one of the original founders.

Mike Ward led ThriftBooks as CEO and president from around 2013 until 2022, the stretch in which the company scaled its automated warehouses and national footprint. He now serves as chief innovation officer and retains a board seat, which keeps continuity between the operating team and ownership. Hector Rivas, a co-founder, was the company's first CEO and ran it for roughly its first decade.

The rest of the leadership team is professional management: a chief technology officer, a chief financial officer, and vice presidents across operations, sales and marketing, human resources, and data science. Because ThriftBooks is private and owned by two investment firms, the full board composition and the exact voting arrangements between the owners are not comprehensively disclosed. Any detailed list of directors beyond the named executives should be treated as partly inferred rather than confirmed.

In June 2020, four education publishers, Pearson Education, Elsevier, McGraw Hill, and Cengage Learning, sued Thrift Books Global in the U.S. District Court for the District of Maryland. The complaint alleged that ThriftBooks had distributed counterfeit textbooks carrying the publishers' copyrighted content and trademarks, and that the company had not done enough to verify that the books it acquired and resold were genuine. The parties reached a settlement, and the court dismissed the case in December 2020. The specific terms were not made public. The kind of legal and reputational exposure a high-volume resale model creates is exactly what a risk register template is built to track.

Because ThriftBooks processes very high volumes of used inventory, condition grading is a recurring source of customer complaints. Buyers report books arriving in worse shape than their listed grade, or receiving copies with old library stickers and markings that were not clearly disclosed. These are common criticisms of any large used-book operation and reflect the trade-off between scale and precise, item-by-item grading rather than any regulatory finding.

Because ThriftBooks does not report financials or its full ownership, outsiders rely on estimates for revenue, profitability, and the split of equity between its two owners. This is legal and common for private, private-equity-backed firms, but it makes independent verification difficult. Revenue and books-sold figures cited for ThriftBooks vary by source and year, and none carry the reliability of an audited public filing.

ThriftBooks' ownership explains its independence. As a private company backed by two investment firms rather than a public shareholder base, it can compete with Amazon on price without answering to quarterly earnings expectations. Its status as one of the few large online booksellers that sits outside Amazon's public ownership is a genuine selling point for customers who prefer an alternative, and that position is only possible because the company stayed independent after 2011.

For the owners, ThriftBooks is a financial asset. KCB Private Equity and Midwest Mezzanine Funds aim to grow the business and eventually realize a return, which shapes decisions toward efficiency, automation, and scale. The 190,000-square-foot Phoenix processing center and the company's heavy investment in warehouse software both reflect an owner mandate to lower the cost of handling each book. That is a different set of priorities from a founder-run business or a public company chasing growth for the market.

For customers and employees, private ownership means less transparency than a public competitor would provide. There is no audited revenue, no disclosed margin, and no public account of how the business is performing. It also means the company's future depends on what its private owners decide to do next, whether that is holding the asset, selling to another buyer, or combining it with a larger platform. In a resale market where rivals range from Amazon's used-book listings to secondhand platforms built on how Vinted makes money, that flexibility is both a strength and a source of uncertainty for the people who rely on ThriftBooks.

Ken Goldstein has been chairman and CEO of ThriftBooks since March 2022. He joined the company's board in 2013 before taking the top job. He is not one of the original founders. Mike Ward, who led the company from around 2013 to 2022, now serves as chief innovation officer and keeps a board seat.

No. ThriftBooks Global, LLC is private and has never been listed on a stock exchange. It has no ticker symbol, no public market cap, and no obligation to disclose its financials. It has been owned by private-capital firms since 2011.

Daryl Butcher, Jason Meyer, and Hector Rivas founded ThriftBooks in 2003 in the Seattle area. Butcher wrote the software that let the company list and price used books at scale, and Rivas served as its first CEO for roughly a decade before ownership changed hands.

Two private-capital firms have owned ThriftBooks since February 28, 2011: KCB Private Equity, the private-equity arm of KCB Management, and Midwest Mezzanine Funds, which invests through MMF Capital. The exact ownership percentages have never been disclosed, and no later change of ownership has been publicly reported.

ThriftBooks describes itself as the largest independent online seller of used books. Third-party trackers estimate its main site generated around $314 million in 2025, and it is reported to have sold more than 295 million used books since 2003. It operates several U.S. warehouses, including a 190,000-square-foot center in Phoenix opened in 2021. These figures are external estimates, because the company does not publish audited results.