Sterling Group Adds Three Execs in Mid-Market PE Talent Push

The Sterling Group, a Houston-based private equity firm managing over $5 billion focused on middle-market industrial and services companies, announced Monday it's added three professionals across its investment and operations teams — a hiring sprint that signals continued appetite for deal flow even as broader mid-market activity remains choppy.

The firm brought on Kendall Wissinger as vice president of portfolio operations in Austin, Michael Harding as principal in Boston, and Jackson Burke as analyst in Houston. All three started in January, according to the announcement. The moves come as Sterling's portfolio companies navigate a tricky operating environment — persistent labor shortages in skilled trades, supply chain normalization that's revealing underlying cost structure issues, and a Fed that's still trying to figure out what it wants to do with rates.

Wissinger's hire is the more telling signal here. Portfolio operations teams don't typically expand unless there's either a wave of recent deals that need hands-on management or an expectation of near-term closings that'll require post-acquisition integration firepower. Sterling's been active — its most recent disclosed exit was Capstone Logistics in 2023, and the firm closed its fifth fund at $3 billion in 2022 — but the operations hire suggests they're gearing up for execution, not sitting on dry powder.

"These additions strengthen our capabilities and enhance our ability to support both existing portfolio companies and future investments," said Peter Bartholow, managing director at Sterling, in the release. That's the kind of line you say when you're hiring because you have to, not because you want to signal strategic expansion. Translation: deal pipeline is real, and they need more hands on deck.

Wissinger joins Sterling's portfolio operations group after spending five years at Austin Industrial, a $600 million revenue engineering and construction services firm where she ran business development and operations improvement initiatives. Before that, she spent a decade-plus at Accenture doing operations consulting across oil & gas, chemicals, and utilities — sectors where Sterling has played heavily.

The Austin Industrial background is relevant. That company works in refining, petrochemicals, power generation, and renewables — exactly the kind of critical industrial infrastructure Sterling targets. Wissinger's experience spans EPC (engineering, procurement, construction) project delivery, supply chain optimization, and operational due diligence — the blocking and tackling that determines whether a mid-market industrial buyout creates value or bleeds cash in year two.

Her Accenture tenure focused on large-scale process improvement and cost reduction programs, which matters more now than it did 18 months ago. When capital was cheap and growth covered inefficiency, portfolio operations teams could focus on revenue synergies and add-on acquisitions. Now, with borrowing costs higher and organic growth harder to come by, the ability to pull $5-10 million in EBITDA out of overhead and supply chain waste is the difference between hitting plan and missing it.

Sterling didn't disclose her specific portfolio assignment, but given her Austin base and energy-heavy background, she'll likely be working with portfolio companies in the industrial services or energy infrastructure verticals — areas where Sterling's current holdings include businesses serving downstream refining, midstream infrastructure, and power generation customers.

Michael Harding joins as principal in Sterling's Boston office, where the firm has maintained a presence since expanding outside Texas over a decade ago. Harding comes from Berkshire Partners, a Boston-based PE firm with $16 billion under management that plays across consumer, healthcare, and industrials. At Berkshire, Harding worked on investments in the industrial and business services verticals — a direct overlap with Sterling's core focus.

Before Berkshire, Harding spent time at Blackstone's private equity group and started his career in investment banking at Goldman Sachs, according to Sterling's announcement. That's the classic PE pedigree: learn modeling and deal mechanics at a bulge bracket bank, get exposure to mega-cap execution at a platform like Blackstone, then move to a sector-focused shop to specialize.

Harding's industrial services experience at Berkshire likely included exposure to roll-up strategies, labor-intensive businesses, and the operational complexity that comes with companies that generate revenue through people and equipment rather than software or intellectual property. That's Sterling's bread and butter — businesses where value creation comes from improving field operations, consolidating fragmented markets, and professionalizing family-owned companies that have growth potential but need institutional management infrastructure.

The Boston hire also signals Sterling's commitment to maintaining investment presence outside its Houston headquarters. While the firm is Texas-born and energy-adjacent by DNA, it's deliberately built a national platform to access deal flow in the broader industrials and services universe — packaging and logistics, specialty manufacturing, environmental services — that doesn't necessarily concentrate in the Gulf Coast.

Jackson Burke rounds out the hires as an analyst in Sterling's Houston headquarters. Burke joins from Jefferies' investment banking division, where he covered industrials and business services M&A. That's entry-level PE recruiting 101: find someone who spent two years modeling deals in the same sectors you invest in, bring them in-house before they get poached by a competitor or burn out and go to business school.

Sterling's hiring pattern — operations firepower, deal execution talent, junior analyst capacity — maps to a firm that's expecting to stay active through 2025 despite macro uncertainty. That's notable, because mid-market industrial PE deal volume has been uneven. According to PitchBook data, U.S. middle-market buyout activity in industrials dropped roughly 30% year-over-year in deal count through Q3 2024, though median deal size ticked up slightly as firms focused on higher-quality assets.

The disconnect between volume and quality is where firms like Sterling think they can win. When competition thins out and sellers get realistic about valuations, industrial businesses with recurring revenue, mission-critical services, and defensible market positions become relatively more attractive. Sterling's model — buy at 6-9x EBITDA, improve operations, consolidate markets, exit at 10-12x — works better when entry multiples compress and there's genuine operational upside to capture.

The portfolio operations hire is particularly telling in that context. When valuations were stretched and leverage was cheap, PE firms could create returns through financial engineering and multiple expansion. When those tailwinds fade, you need people who can actually make the businesses run better — trim costs, win new contracts, integrate acquisitions, improve safety metrics and labor productivity. Wissinger's background suggests Sterling is staffing for that reality.

There's also a talent war dimension here. Mid-market PE firms are competing with mega-funds for operating partners and experienced principals who know how to navigate industrial complexity. Sterling's ability to attract someone with Berkshire Partners experience (Harding) and deep operational chops from a major industrial services player (Wissinger) suggests the firm's value proposition — sector focus, hands-on operating model, Texas base with national reach — still resonates even as larger firms throw around bigger titles and carry percentages.

The firm didn't disclose compensation details, equity participation, or specific portfolio assignments for the new hires. That's standard — PE firms treat team structure and portfolio mapping as proprietary information, since it signals where they're focused and what they might be shopping for.

Sterling's investment thesis hasn't changed materially in years: buy founder-owned or family-owned industrial and services businesses in the $75-500 million enterprise value range, typically in fragmented markets with consolidation opportunity, where professionalizing management and adding operational rigor can drive meaningful EBITDA improvement. Target sectors include manufacturing, distribution, industrial services, and specialty chemicals — businesses that serve end markets like energy, infrastructure, transportation, and packaging.

That thesis works in different macro environments, but the execution playbook shifts. In a low-rate growth environment, Sterling focused on revenue synergies and add-on acquisitions — buy a regional player, roll up competitors, build a national platform, sell to a strategic or larger PE firm. In the current environment, the focus tilts toward operational improvement and margin expansion — buy decent businesses at reasonable prices, make them run better, exit when value creation is demonstrable and buyers are willing to pay for quality.

For Sterling's existing portfolio companies, Wissinger's arrival likely means more intensive operational engagement. Portfolio operations VPs don't sit in Austin and write memos — they spend time on-site at manufacturing plants, distribution centers, and field service operations, diagnosing inefficiencies and driving improvement initiatives. If you're a portfolio company CEO, you're about to get more engaged scrutiny of how you run the business — and more support, assuming you're willing to take it.

For prospective sellers in Sterling's target markets, the hiring signals the firm is open for business. Mid-market industrial companies that have been waiting for the M&A market to stabilize before testing buyer appetite should read this as a green light. Sterling's adding deal and operating capacity because they expect to deploy capital, not because they're sitting on the sidelines waiting for the perfect entry point.

The timing also matters. Private equity fundraising has been challenging — 2023 and 2024 saw meaningful declines in new fund closes and LP commitments — but established mid-market firms with strong track records have generally been able to raise. Sterling closed its fifth fund at $3 billion in 2022, which means they're still in active deployment mode with dry powder to put to work before starting the fundraising cycle again.

There's a competitive element, too. Sterling competes for deals with firms like Audax, OceanSound, CIVC Partners, and Littlejohn & Co. — all of which play in the industrial and services middle market with similar AUM and investment strategies. Talent is a differentiator in that peer set. The firm that can show a seller they have deep operational expertise in their specific vertical and a track record of helping similar businesses scale has an edge over a generalist fund writing a bigger check but offering less hands-on support.

Sterling didn't frame this as a geographic expansion story, but adding a VP in Austin (where the firm doesn't have an official office but clearly has operating presence) and a principal in Boston reinforces a multi-hub model. Houston remains the mothership, but the firm is quietly building capacity in markets where industrial deal flow concentrates — Austin for energy services and manufacturing, Boston for broader industrials and logistics.

That's smart. Opening a new office with full infrastructure is expensive and sends a signal that can backfire if deal flow doesn't materialize. Adding senior people in target geographies without the formal office announcement gives you the sourcing and operating presence without the overhead or the pressure to justify the expansion to LPs on the next fundraising call.

Sterling's not alone in adding headcount despite macro uncertainty. Other mid-market industrial-focused PE firms have made similar moves in recent months — Altamont Capital added two principals in Q4 2024, Court Square brought on a senior operating partner in manufacturing, and H.I.G. Capital expanded its industrial services team. The pattern suggests firms with deployed capital and strong portfolio performance are choosing to invest in talent even as banks and corporates pull back on hiring.

Part of that is opportunistic — talent that wouldn't have been available in a frothy market is suddenly open to conversations. Senior operating executives at portfolio companies that got sold or shut down, principals at larger firms looking for more autonomy or carry, analysts burned out from banking and ready to move to the buy-side — all of that talent is in play in ways it wasn't 18 months ago.

Part of it is also strategic. PE firms that sat out 2022-2023 because valuations were disconnected from fundamentals are now seeing realistic pricing and motivated sellers. To move quickly when opportunities arise, you need investment and operating capacity ready to go — not scrambling to backfill when a deal hits the finish line.

Sterling manages over $5 billion in assets and typically holds 8-12 active portfolio companies at any given time, based on historical fund structures and deployment pacing. The firm's investment range is $75-500 million in enterprise value, though recent deals have skewed toward the higher end of that range as middle-market valuations have climbed over the past decade. Portfolio companies generally generate $50-300 million in revenue and $10-50 million in EBITDA at entry, with the expectation of doubling EBITDA over a 4-6 year hold period through organic growth, margin improvement, and add-on acquisitions.

A portfolio operations team of Wissinger's caliber typically supports 2-4 portfolio companies simultaneously, focusing on the businesses that need the most intensive operational support — recent acquisitions in integration mode, underperforming assets that need turnaround expertise, or high-growth companies preparing for exit where margin optimization can drive meaningful valuation uplift. If Sterling's adding a VP-level operating partner, it suggests at least 2-3 current portfolio companies are in active value-creation mode and demanding hands-on attention.

The firm's track record spans over 30 years and includes successful exits in sectors like logistics (Capstone), environmental services, packaging, and specialty manufacturing. Sterling's model requires patience — these aren't software companies that can scale rapidly through distribution partnerships or product-market fit iteration. Industrial value creation is slower, lumpier, and more dependent on execution than thesis. That's why operational talent matters more here than in venture-backed tech or growth equity.

The firm also operates a dedicated in-house strategy and operations team that works alongside portfolio company management to drive specific initiatives — pricing optimization, sales force effectiveness, supply chain redesign, ERP implementation. Wissinger will likely plug into that existing infrastructure rather than operating solo, which means Sterling's betting that adding another senior operating voice will unlock incremental value across multiple portfolio companies, not just support one turnaround situation.

The near-term signals to track are Sterling's exit activity and new deal announcements. If the firm is staffing up for deployment, we should see new platform acquisitions or meaningful add-ons in the next 6-9 months. If portfolio operations is the priority, watch for portfolio company management changes, operational improvement announcements, or public filings (if any portfolio companies carry rated debt) that show margin expansion or EBITDA growth.

Sterling's most recent disclosed exit was Capstone Logistics, a provider of warehouse and logistics services, which the firm sold to a strategic buyer in 2023 after a multi-year operational improvement and add-on acquisition program. That playbook — buy a fragmented services business, consolidate the market, professionalize operations, sell to a larger player — is repeatable across other verticals Sterling targets. The question is whether market conditions in 2025 will support similar exit opportunities or whether the firm will focus on building value internally and waiting for a better M&A environment.

On the fundraising front, Sterling will eventually need to raise Fund VI, though timing is unclear. The firm closed Fund V at $3 billion in 2022, which typically implies a 4-5 year deployment period followed by 12-18 months of fundraising for the next vehicle. If Sterling is hiring aggressively now, it suggests they're either ahead of pace on deployment or confident they can demonstrate strong interim performance to LPs when fundraising begins.

The broader industrial PE landscape is also shifting. Energy transition and decarbonization are creating new investment opportunities in sectors Sterling has historically played in — industrial gases, environmental services, energy efficiency. At the same time, traditional oil and gas services businesses are facing long-term demand uncertainty. How Sterling navigates that sector evolution — doubling down on energy infrastructure that supports renewables, diversifying away from hydrocarbon exposure, or staying selective in traditional energy services — will shape the firm's next chapter. The talent they're hiring suggests they're positioning for complexity, not simplicity.

Private equity hiring patterns often reveal more than deal announcements. Firms don't add senior people unless they have work for them to do — and in PE, work means either deploying capital or fixing portfolio companies. Sterling's decision to bring on three professionals simultaneously, across investment and operations, suggests the firm sees both opportunities (new deals to pursue) and challenges (existing portfolio companies that need intensive support) in the current environment.

The fact that all three hires bring direct industrial and services experience — not generalist PE backgrounds pivoting into a new sector — reinforces Sterling's commitment to deep vertical expertise. That's increasingly a differentiator in middle-market PE, where firms that try to be all things to all sellers often lose deals to specialists who can demonstrate operational credibility and sector-specific value creation playbooks.

Whether this hiring sprint translates into outperformance won't be clear for years. PE returns are backward-looking — what matters is how these hires contribute to portfolio company growth, exit valuations, and ultimately fund returns over a 4-6 year horizon. But in a market where many firms are cutting costs and slowing deployment, Sterling's willingness to invest in talent now is at least a signal of confidence. Or necessity. Sometimes those look the same from the outside.

For now, the message to the market is clear: Sterling's open for business, staffed for execution, and betting that middle-market industrial companies — the unglamorous, hard-to-scale, operationally intensive businesses that don't make TechCrunch headlines — still offer compelling risk-adjusted returns for investors willing to do the work. Whether that thesis holds depends less on macro conditions and more on whether people like Wissinger, Harding, and Burke can actually make the businesses run better. That's the bet.