SunSource: How an Oil Company's Side Bet Built a Giant

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

SunSource landed at No. 1 for Hose & Accessories and No. 2 for Fluid Power on the 2025 MDM Top Distributors list, with a No. 15 finish in Industrial Supplies and 2024 revenue north of $2 billion. Most distributors that big were built by a founder who never let go. SunSource wasn't. It was born as a hedge inside an oil company, and it has been owned by financial sponsors, one after another, for most of its life.

A Refinery's Insurance Policy

Sun Distributors L.P., the entity that became SunSource, was created in 1975 as a subsidiary of Sun Company, the oil corporation behind Sunoco stations. Sun's petroleum business was brutally cyclical, and its executives wanted a counterweight, so they built a distribution arm that could throw off steady cash regardless of what crude was doing. According to FundingUniverse's corporate history, the unit expanded fast through acquisition almost immediately: hydraulic and pneumatic controls maker Walter Norris in 1976, Kar Products for $31.5 million and Unibraze for $10 million in 1977, then Atlas Screw & Specialty and J.N. Fauver Company by 1979. By the end of 1977 the young distribution arm had already reached $20 million in sales. The strategic logic, as one contemporary analyst put it, was that Sun Distributors would "take over activities or functions performed by either the manufacturer or the customer and charge for them" -- value-added distribution as a business model, decades before that phrase became an industry cliché.

That origin story is the unique insight worth naming plainly: SunSource is not a family business that grew into a conglomerate. It is a diversification hedge that outlived the reason it was created and then kept compounding under a rotating cast of financial owners.

Four Owners, One Playbook

Sun Company divested its non-energy assets in 1986. Shearson Lehman Brothers bought the distribution unit's stock for $199 million that October and restructured it in January 1987 as a master limited partnership, a tax-favored vehicle built for investors rather than operators. By 1994, squeezed by debt and a soft economy, the company narrowed to three core lines -- fluid power, glass, and maintenance products -- and sold off its struggling electrical division for $73 million, per the same FundingUniverse history. The fluid power piece kept going, eventually rebranded SunSource, and kept changing hands: private equity firm CHS Capital owned it through the 2000s, Littlejohn & Co. bought it in October 2011, and Clayton, Dubilier & Rice acquired it from Littlejohn in December 2017, where it remains today.

What's notable is not the churn itself -- plenty of industrial distributors have passed through PE hands. It's that SunSource's operating leadership barely moved while the ownership did. David Sacher joined in 2002, rose to COO in 2009, and became CEO in 2017 -- the same year CD&R took control -- while his predecessor Justin Jacobi shifted to executive chairman, according to Modern Distribution Management's coverage of the transition. Four capital-structure changes, one continuous management bench. That's the trick: let the balance sheet rotate through sponsors chasing a return, and keep the people who actually run branches and answer engineering calls in place long enough to compound expertise.

The Roll-Up Never Stopped

Under CD&R, the acquisition engine that started with Walter Norris in 1976 kept running. SunSource bought Ryan Herco Flow Solutions in April 2018, adding high-purity fluid conveyance products for semiconductor and life-sciences customers, then folded in United Distribution Group the same year for MRO-focused fluid conveyance. Most recently, SunSource acquired Vytl Controls Group from MiddleGround Capital in early 2026, a Texas-based valve, actuator, and instrumentation platform with 32 branches across 11 states operating under brands like Setpoint Integrated Solutions and W&O Supply, according to PE Professional's report on the deal. Each deal adds adjacent technical capability -- flow control, high-purity fluid handling, valves -- rather than just more branches selling the same hydraulic hose.

The Trade-Off

The tension in this model is straightforward: a distributor that has never been anything other than a leveraged financial asset carries the debt load that implies. SunSource's capital structure includes a $465 million Term B facility, amended as recently as January 2026 to support continued acquisitions. That financing access is exactly what lets a No. 2 fluid power player keep buying its way into No. 1 territory in hose. It also means every downturn in industrial capital spending lands on a company that has to service that debt regardless of who owns the equity above it. A founder-run distributor can choose to slow down in a soft year. A sponsor-backed platform, four owners deep, is built to keep compounding.

SunSource's bet is that technical depth -- engineers who can spec a hydraulic system, not just quote a part number -- is worth more to a customer than a lower price, and that bet has outlasted eight owners and one oil company's original hedge.

This piece is part of Anglera's Distributor Playbooks series, an ongoing look at how the companies on MDM's Top Distributors list actually built their advantage, one branch, acquisition, and catalog at a time.