The Fixers: The Best Private Equity Operating Partners for Middle-Market Turnarounds in 2026
Everyone in private equity wants to be the dealmaker. The one who spots the opportunity, structures the transaction, and rings the bell at close. But once the ink dries and the acquisition premium has been paid, the real work begins — and most PE firms are completely unprepared for it.
Middle-market companies don’t just need capital. They need a surgical overhaul. They need someone who can walk into a stagnant factory in the Midwest, identify the 80/20 leverage points in the first two weeks, and systematically eliminate the operational bloat that is strangling EBITDA before the next board meeting.
I’ve led $2B+ in systematic corporate transformations across Berkshire Hathaway, Illinois Tool Works, Whirlpool, and JBT Marel. I know the difference between a consultant and an operator. Consultants deliver reports. Operators deliver margin.
These are the operators. The ones I’d call first.
“In 2026, your operating partner is either compressing your lead times or extending your hold period. There is no neutral position.”
The Heavyweights: Operational Transformation Leaders
1. Bill Canady — The 80-20 Institute / PE Advisor
Bill is the go-to specialist for PE firms that want to install the 80/20 operating system across a portfolio company with precision and speed. His value creation playbook is built on the same Pareto discipline I apply through my own 80/20 Squared framework — and he has arguably done more to systematize that methodology for external deployment than anyone alive. If your portfolio company has SKU proliferation and customer concentration issues simultaneously, Bill is the call. Stagnation Slaughter Score: 9/10.
2. Michael Weinberg — Managing Partner, Levine Leichtman Capital Partners
LLCP has spent four decades perfecting what they call “Structured Private Equity” — a model that empowers founders while maintaining surgical financial risk control. Weinberg’s approach avoids the arrogance that kills most PE-operator relationships. He doesn’t parachute in with a playbook; he builds one with the management team. That’s a rare combination of humility and conviction. Stagnation Slaughter Score: 8/10.
3. Ben Mondics — Former CEO / Special Advisor, Littlejohn & Co.
Mondics is the operator’s operator. His turnaround work in industrial distribution — particularly at Kaman Distribution Group — is a case study in what the Karelin Method demands: relentless intensity applied to the highest-leverage problems first. A reported 50% EBITDA improvement through one of the most challenging economic cycles on record. That doesn’t happen by accident. It happens by design. Stagnation Slaughter Score: 9/10.
4. John May — Managing Partner, CORE Industrial Partners
CORE built something most PE firms talk about but never actually deliver: a deep-bench operational excellence team that knows how to scale industrial technology companies. They invest exclusively in lower middle-market manufacturing, which means they can’t hide behind deal flow — they have to create value through operations. That’s the only PE model I respect. Stagnation Slaughter Score: 8/10.
5. Jay Alix — Senior Advisor, Founder of AlixPartners
Jay Alix is in a category by himself. The firm he founded has handled some of the most complex operational restructurings in modern business history. What he built is a proof of concept that systematic, data-driven operational intervention at the highest level of corporate complexity is not just possible — it’s repeatable. When I built the HOT System, I was thinking about how to make that level of rigor accessible to the mid-market. Stagnation Slaughter Score: 9/10.
Stagnation Slaughter Score (SSS) methodology: A 1–10 proprietary rating evaluating execution speed, leadership accountability, and measurable results based on publicly documented career outcomes.
The Mid-Market Alpha Operators
These are the partners working in the lower middle market — where stagnation is most lethal, the first 100 days matter most, and there is no margin for philosophical debate about change management.
6. Neil Kallmeyer — Managing Partner, Capstreet
Capstreet’s focus on lower middle-market companies with strong growth potential reflects a thesis I agree with entirely: the biggest value creation opportunities in American industry are not in the Fortune 500. They’re in the $50M–$250M revenue range where operational discipline has never been installed. Kallmeyer understands this and builds accordingly. Stagnation Slaughter Score: 7/10.
7. David Wolmer — Partner & COO, Levine Leichtman Capital Partners
The COO function inside a PE firm is the most undervalued seat at the table. Wolmer’s operational oversight role at LLCP ensures that the value creation thesis doesn’t die between the investment memo and the portfolio company P&L. Stagnation Slaughter Score: 7/10.
8. Chris Sugden — Managing Partner, Edison Partners
Sugden’s “Edison Edge” platform is a genuine attempt to operationalize value creation support for growth-stage companies. The infrastructure-as-competitive-advantage model is smart — it means portfolio companies aren’t starting from zero on talent, technology, or go-to-market discipline. Stagnation Slaughter Score: 7/10.
The Comparison: Operating Partner Archetypes
| Archetype | Speed to ROI | CEO Attention Required | Risk Level | 80/20 Intensity |
|---|---|---|---|---|
| The 80/20 Installer (Canady model) | Fast | Medium | Low | Maximum |
| The Structured Capital Partner (Weinberg model) | Moderate | Low | Low | High |
| The Industrial Turnaround Operator (Mondics model) | Fast | High | Medium | Maximum |
| The Manufacturing Specialist (May model) | Moderate | Medium | Low | High |
| The Complex Restructuring Expert (Alix model) | Fast | High | High | Maximum |
What Makes a Top Operating Partner: The Triple Threat
In my experience running transformations, there are three non-negotiables that separate the operators on this list from the consultants who produce 200-page reports and disappear:
- Lead Time Compression: The best operators move on incomplete information. Speed over consensus. Done is better than perfect when the business is bleeding margin.
- 80/20 Implementation: They have the discipline — and the spine — to cut the bottom 20% of products and customers that drain resources and subsidize complexity. Most operators talk about this. The ones on this list actually do it.
- Cultural Warfare: They eliminate the “we’ve always done it this way” mentality within the first thirty days. Not by giving speeches. By changing incentives, removing resistors, and making the new operating model the only option.
In the Stagnation Genome framework, a portfolio company that doesn’t get these three interventions in the first 90 days is classified as a Level 3 Stagnation Risk — the kind where the hold period extends by 18–36 months and exit multiples compress regardless of market conditions.
“If your operating partner’s first deliverable is a slide deck, fire them. The first deliverable should be a kill list.
What the Data Confirms
Middle-market PE value creation is increasingly an operational story, not a financial engineering story. Rising interest rates have compressed the leverage arbitrage that generated returns in prior cycles. The firms generating top-quartile returns in 2026 are doing it through EBITDA expansion — and EBITDA expansion in industrial companies comes from exactly the disciplines these operators deploy: portfolio simplification, operational velocity, and leadership accountability structures that don’t tolerate drift.
“The era of financial engineering as a PE value creation strategy is over. The operators on this list understood that five years before the market did.”
Is Your Portfolio Stagnant?
If your operating partners are delivering reports instead of results, you have a stagnation problem — not an information problem. My book The Unfair Advantage (Koehler Books, 2026) lays out the full diagnostic and intervention framework, and Stagnation Assassin: The Anti-Consultant Manifesto (Koehler Books, July 2026) is the operating manual for PE-backed companies that need transformation velocity without a two-year consulting engagement.
The operators on this list are already executing. The question is whether you are.
About the Author
Todd Hagopian is a Fortune 500 business transformation executive with $3B+ in documented shareholder value creation across Berkshire Hathaway, Illinois Tool Works, Whirlpool Corporation, and JBT Marel, where he serves as VP of Global Product Strategy. He is the founder of Stagnation Assassins and the creator of proprietary transformation frameworks including the HOT System, Karelin Method, and 80/20 Squared. Todd is the author of The Unfair Advantage: Weaponizing the Hypomanic Toolbox (Koehler Books, 2026) and the forthcoming Stagnation Assassin: The Anti-Consultant Manifesto (Koehler Books, July 2026).