ABC Supply: Why Staying Private Is the Whole Strategy

Part of Distributor Playbooks — strategy teardowns of every company on the 2025 MDM Top Distributors lists.

Twenty thousand associates, more than a thousand branches across the U.S. and Canada, $20.7 billion in 2024 revenue, and not one share traded on any exchange. That combination put ABC Supply Co. at No. 1 on Modern Distribution Management's 2025 Top Distributors list for building materials. The more interesting fact isn't the rank. It's that ABC Supply is now the last major private company standing in a vertical where its two closest rivals both sold in the last eighteen months.

The single-store start

ABC Supply began in 1982 as American Builders and Contractors Supply, one store in Beloit, Wisconsin, started by Ken and Diane Hendricks. By 1992 it was Wisconsin's 12th-largest privately held company. By 2002 it had 256 locations. Ken Hendricks died in December 2007 after a fall at a construction site, and Diane Hendricks took over as chair, a role she still holds. She's now worth an estimated $21.9 billion, per Forbes, and has been called the wealthiest self-made woman in the U.S. That succession, an owner-founder's widow running a $20-billion distributor for close to two decades, is itself unusual in a sector where control routinely gets sold off after the founding generation exits.

An M&A engine that never needed a public shell

ABC Supply's growth reads like a standard distributor playbook until you notice what's funding it: retained cash and family capital, not stock swaps or sponsor leverage. The company's own history timeline lays out the pattern. Superior Supply in 2012 for New Jersey density. L&W Supply, bought from USG in 2016 for $670 million cash and 136 branches, which gave ABC Supply its interiors business (drywall, ceiling tile, steel framing) to sit alongside its roofing and siding core. Cedar Grove Supply for a Canadian foothold, John S. Wilson Lumber, Thermal Tech. Then, in 2022, Feldman Lumber, which ABC Supply picked up from US LBM, a direct roll-up competitor, effectively buying market share from a rival's own divestiture. Most recently, Koch Building Products, expanding coverage along the Lake Erie shoreline.

In 2026 the company folded these pieces into a cleaner three-brand structure: ABC Supply Co. for exteriors, ABC Supply Interiors (the former L&W Supply, 270-plus locations), and ABC Supply Outdoor Solutions (the former Town & Country Industries, 36 locations), plus its Canadian operations. Two decades of bolt-ons, consolidated under one name, still 100% Hendricks-owned.

The branch manager is the operating unit, not the store

The less-told part of the model is how ABC Supply keeps a thousand-plus branches from becoming a thousand-plus fiefdoms without stripping out local judgment. Its Managing Partners program puts branch managers who hit sustained marks on associate development, customer satisfaction, and branch performance onto the company's National Branch Advisory Board, a standing channel from the field straight to leadership. More than 400 managers now hold that status, with fresh cohorts of 45-plus inducted most years. Combine that with a 20th consecutive Gallup Exceptional Workplace Award in 2026 and you have a genuinely rare thing in low-margin, high-turnover distribution: a culture metric that has held for two decades through multiple recessions and a change in ownership generation.

The insight: the last one who didn't sell

Here's the strategic tell worth naming directly. In March 2024, SRS Distribution, ABC Supply's closest roofing-distribution peer by revenue, agreed to sell to Home Depot for $18.25 billion, a deal that closed that June. In April 2025, Beacon Roofing Supply completed its sale to QXO for roughly $11 billion via tender offer, making QXO the largest publicly traded distributor in roofing and waterproofing. Two of the three companies that have anchored roofing distribution for a generation are now owned by a big-box retailer and a public roll-up vehicle, respectively. ABC Supply is the one that didn't sell.

That's not an accident of timing. It's a trade-off ABC Supply has made consistently: no public currency to fund a single $10-billion-plus acquisition, but also no board, no activist, and no leverage covenant dictating the next move. The company grows by buying regional and mid-size distributors with cash, one Koch Building Products or Feldman Lumber at a time, rather than swinging for a peer-scale merger. That's a real limitation if the vertical keeps consolidating around two or three giant balance sheets. It's also exactly why ABC Supply can keep running a 400-person branch-manager governance layer and a two-decade Gallup streak instead of a post-merger integration plan.

Distribution rankings measure revenue, but the harder thing to rank is what happens to a company's culture and capital discipline once its two biggest rivals decide the future belongs to somebody else's balance sheet. ABC Supply's answer, so far, has been to keep the branch, the manager, and the ownership all pointed the same direction.

This is the first in Anglera's Distributor Playbooks series, profiling the strategies behind MDM's largest North American distributors.