Where to point an origination thesis across industries
Best industries for proprietary deal flow in 2026.
Every private equity firm wants proprietary deal flow. Far fewer have asked whether the industry they already picked is even a good one to get it in. The best industries for proprietary deal flow are not the sectors getting the most attention on LinkedIn or the most coverage from bankers. They are the ones where owner-operated businesses are still fragmented enough, and still quiet enough, that a direct outreach programme can reach the owner before anyone else does.
This is a comparison, not a ranking of what is trendy. It is written for private equity firms, independent sponsors, and M&A advisors choosing or reassessing an industry thesis, using five sector categories DealSource Systems runs origination in every week: business and IT services, consumer, healthcare, home and facility services, and industrials.
What makes one industry better for proprietary deal flow than another?
An industry is good for proprietary deal flow when three conditions overlap: the owner base is genuinely fragmented, most owners have never been formally marketed, and few competing buyers are reaching them directly. Fragmentation alone is not enough. An industry can have thousands of small operators and still produce almost no proprietary deal flow if every one of them already gets three calls a week from bankers running a process. What actually separates a good thesis from a crowded one is how many owners are still reachable before a formal sale process exists, not how many owners exist in total.
Which industries have the most fragmented, owner-operated businesses right now?
Business and IT services and home and facility services carry the deepest fragmentation of the five, because both categories are built almost entirely from founder-owned operators who scaled a service business rather than a product. Managed IT shops, staffing and RPO firms, accounting practices, and HR tech operators sit in the first group. HVAC, plumbing, roofing, and pest control businesses sit in the second. Neither category consolidated the way manufacturing or healthcare did decades ago, which is exactly why add-on acquisitions still find fresh targets in both, years into active roll-up activity.
Where is competition from other buyers already highest?
Home and facility services is the most contested of the five right now, precisely because its fragmentation has been public knowledge for several years. HVAC and plumbing roll-ups are well-documented PE strategies, which means an owner in those trades is statistically more likely to have already fielded an inbound call from a competing platform. That does not make the category a bad thesis, it makes reachability, not fragmentation, the binding constraint: the funds still winning proprietary conversations there are reaching owners earlier and more consistently, not finding some undiscovered pocket of the trade.
Which industries have the strongest succession signal?
Business and IT services and industrials currently carry the strongest succession signal, because both are dominated by founders who built the business themselves and are now aging toward an exit. That is not a niche observation. McKinsey estimates roughly 6 million US businesses, representing up to $5 trillion in value, will change ownership by 2035, and CNBC reports about half of small business owners are 55 or older, most without a formal succession plan. Industrials in particular, precision machining shops, industrial equipment distributors, aerospace and defense suppliers, tends to run older and quieter than the other four categories: fewer of these owners have ever spoken to a banker, which is precisely why business owners sell on their own timeline rather than a process timeline.
Does healthcare still offer proprietary deal flow, or is it too picked over?
Healthcare is the most misunderstood industry on this list, because the auction market for healthcare assets is genuinely saturated while the off-market side is not. Every sponsor with a healthcare thesis wants physician practices, dental groups, and provider organisations, so a healthcare asset that reaches a formal process is priced like it. But most physician practices, specialty groups, and senior-care operators have never been in a process at all, which is where healthcare deal origination still produces genuine proprietary conversations. One healthcare investment bank running origination through DealSource Systems reached 14 owner conversations in three weeks and 133 within 90 days, proof that "crowded at auction" and "closed off-market" are two different facts about the same sector. See the full result.
Best industries for proprietary deal flow, compared
| Industry | Fragmentation | Current buyer competition | Strongest signal | Best fit for |
|---|---|---|---|---|
| Business and IT services | Very high | Low to moderate | Owner succession, recurring revenue fatigue | PE roll-ups, independent sponsors |
| Home and facility services | Very high | High | Succession, referral saturation | Funds that can move fast and reach owners early |
| Healthcare | High off-market, low at auction | Low off-market, very high at auction | Regulatory and reimbursement change, succession | PE and M&A advisors with sector depth |
| Consumer and multi-location | Moderate | Moderate to high at the branded tier | Owner fatigue, growth capital need | Growth equity, PE buyout |
| Industrials | High | Low | Succession, no formal process history | Niche PE, family offices, search funds |
How should a fund choose an industry thesis based on this comparison?
- 1. Start from reachability, not headline fragmentation. A category with 10,000 owner-operators and no way to identify or reach the right ones produces less proprietary deal flow than a smaller category with a clean, mappable universe of targets.
- 2. Weight the succession signal over the growth signal, unless the mandate says otherwise. Succession-driven owners respond to a different message and on a different timeline than growth-driven founders, and most buy-side theses are built around a sale, not a partnership.
- 3. Assume competition will rise wherever the thesis is public. If a category has been written about as a roll-up target for more than two years, plan for a more competitive conversation, not an uncontested one.
- 4. Test the thesis with a real outreach pilot before committing headcount. What proprietary deal flow really means is a system, not a hope, and the fastest way to validate an industry choice is a short pilot that measures actual owner response, not theoretical fragmentation.
- 5. Revisit the comparison annually, not once. An industry's competitive position moves as more funds publish their thesis, so an evaluation done in 2024 does not hold in 2026 without checking it again.
Conclusion
The best industries for proprietary deal flow change as more capital chases the same categories, and with PE buyout dry powder above $1 trillion, that pressure is only building. Cherry Bekaert puts add-ons at roughly three-quarters of all buyouts, which means most of that capital is not chasing platform deals, it is chasing exactly the fragmented, owner-operated businesses this comparison covers. Business and IT services and industrials currently offer the cleanest combination of fragmentation and low competition. Home and facility services and healthcare still work, but only for funds that reach owners earlier and more consistently than the buyers already active there. Consumer sits in between, rewarding a specific, well-defined thesis over a broad one. None of the five is a bad choice on its own. The differentiator is whether the origination behind the thesis reaches owners directly, before a process starts, or waits for the same list everyone else is already working.
Key Terms Glossary
Frequently asked questions
What does "proprietary deal flow" actually mean in this comparison?
It means acquisition conversations that started through direct outreach to an owner before that business entered any formal sale process, as opposed to opportunities received through a banker's marketed process.
Is industrials really less competitive than healthcare for off-market deals?
For direct outreach specifically, yes: industrials owners have historically had far less contact with bankers or competing buyers than healthcare owners, even though healthcare draws more total investor attention overall.
Should a fund run one industry thesis or several at once?
A single, well-resourced thesis usually outperforms several thin ones, because reaching an owner base thoroughly enough to surface the truly reachable targets takes sustained effort, not a scattershot list across five sectors at once.
How long does it take to know if an industry thesis is working?
Most origination programmes see whether a thesis is producing real owner conversations within 60 to 90 days, which is enough time to judge reachability without waiting a full year to find out.
Do these industries differ in typical deal size, or just in origination difficulty?
Both. Industrials and business services targets in this comparison tend to be smaller, owner-operated companies, while healthcare and consumer platforms span a wider range including larger, multi-location operators.
Does a crowded industry mean proprietary deal flow is impossible there?
No, it means the bar for reaching owners early and consistently is higher, and a generic, occasional outreach effort will lose to buyers who are systematically and continuously present in that owner base.
Can this comparison change from one year to the next?
Yes. As more funds publish an industry thesis publicly, competition for direct owner attention in that category rises, which is why the comparison should be revisited rather than treated as fixed.
Does DealSource Systems only source in these five industry categories?
These five reflect where DealSource Systems runs origination most often, covered in depth on the industries page, but the underlying solutions apply to any fragmented, owner-operated sector with a genuine succession or growth signal.