Distribution Solutions Group: The Roll-Up Going Full Circle

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

Distribution Solutions Group lands on MDM's 2025 Top Distributors lists at No. 20 in Industrial Supplies, No. 17 in MRO, No. 11 in Fasteners, and unranked-but-present in Specialty Adhesives, on $1.8 billion in 2024 revenue. Most companies with four placements on that list got there by digging one hole deeper for seventy years. DSG got there by welding three unrelated holes together, and it is about to change hands again before the paint dries.

A fastener seller and two strangers

The oldest part of the business goes back to 1952, when Chicagoan Sidney Port started selling fasteners out of his car trunk and eventually built Lawson Products, named after a newspaper publisher he admired rather than himself. Lawson spent decades as a plain-vanilla MRO distributor selling fasteners, cutting tools, and specialty chemicals to small and midsize shops through a van-based sales force. It was not a growth story. Expenses outran sales through the 1990s, the stock stalled around $22, and by the mid-2000s the company was cutting $20 million in costs and laying off 11 percent of its workforce just to get back to breakeven. Profits didn't return until 2017 and 2018, after five loss-making years out of six.

That slow, unglamorous turnaround is what made Lawson useful for something its old sales reps never saw coming: a listed shell.

The merger that wasn't an IPO

In April 2022, Lawson's shareholders approved a plan to combine the company with two businesses it had never competed against a day in its life: TestEquity, a distributor of test-and-measurement gear and electronic production supplies, and Gexpro Services, an OEM supply-chain and kitting provider. Both were portfolio companies of LKCM Headwater Investments, the private-equity arm tied to Fort Worth's Luther King Capital Management. DSG issued roughly 10.3 million new shares for the two companies in an all-stock deal, and the following month Lawson renamed itself Distribution Solutions Group and swapped its ticker from LAWS to DSGR.

Functionally, that is a reverse merger: a sponsor using an existing public listing to bring private portfolio companies to market without underwriting an IPO. It is a well-worn move in biotech and mining. It is unusual in industrial distribution, where the standard path to public markets runs through a traditional offering or a SPAC, not through the balance sheet of a 70-year-old fastener seller that had just finished paying down its own turnaround debt.

Bolting on, fast

Once assembled, DSG did what roll-ups do: it bought. In 2023 it paid up to $319 million for Hisco, an industrial technology and specialty products distributor, folding it into TestEquity. In 2024 it added Bolt Supply on Canada's west coast and then Source Atlantic, a 157-year-old, Irving-family-stewarded MRO wholesaler in Saint John, New Brunswick, generating roughly CAD 250 million and running 24 locations across Eastern Canada. The two Canadian deals were combined into a new Canada Branch Division segment, DSG's fourth. By 2024, Lawson, TestEquity, and Gexpro Services alone were reporting a combined $1.68 billion in segment revenue, with Canada layered on top to reach MDM's $1.8 billion figure. None of that came from one distributor organically out-growing its category. It came from a sponsor with a checkbook and a public vehicle to run it through.

The insight: a holding company wearing a distributor's clothes

Here is the pattern worth naming: DSG never merged its acquisitions into one brand. Lawson reps still sell as Lawson. TestEquity still sells as TestEquity. Source Atlantic's counter staff in New Brunswick still work under a name their customers have trusted since the Irving family owned it. DSG describes this explicitly as a decentralized operating model, and it is closer to how a diversified industrial holding company like Watsco or Constellation Software operates than how a typical MRO distributor consolidates. Most roll-ups buy a niche player and repaint the trucks. DSG buys the niche and leaves the paint alone, betting that the customer relationship a specialty brand carries is worth more than the cross-sell synergy a single unified brand might generate.

That trade-off cuts both ways, and it is the honest tension in the model. A decentralized platform can integrate niche acquisitions without blowing up the sales relationships they were bought for. It can also mean the "One DSG" story that looks tidy on an investor slide never quite reaches the loading dock, where four ERP systems and four go-to-market motions still run in parallel under one ticker.

The loop closes

Which brings the story to July 2026. LKCM Headwater, which already owned about 79 percent of DSG's stock from the original combination, agreed to take the company private at $35 a share, up from an initial $29.50 offer and an 81 percent premium to where the stock closed the day before that opening bid. J. Bryan King, DSG's chairman and CEO, is also the managing partner of LKCM Headwater. The same sponsor that used Lawson's public shell to bring TestEquity and Gexpro to market in 2022 is now buying that shell back four years and roughly a billion dollars of bolt-on M&A later.

Few distributors make that round trip. DSG went from a struggling public fastener seller, to a reverse-merger platform for a private equity roll-up, to a $1.8 billion four-segment distributor, to private again, inside one CEO's tenure. The MRO business he started with never stopped selling fasteners the whole time.

Every distributor on this list runs on the same unglamorous machinery: catalogs that have to match what's on the truck, branches that have to match what's in the catalog, and data that has to match all of it before a customer ever notices. This series looks at how each one built theirs.