The Sourcing Machine Behind a Search
One thing we’ve learned doing acquisition sourcing: finding companies is actually the easy part. Figuring out which ones are worth your time is where it gets interesting.
For a mandate we're working on right now, the brief wasn't "find companies." It was find a very specific kind of company, recurring or highly repeatable service businesses, in compliance-driven niches that don't always show up on a standard industry screen.
So before we searched for a single company, we worked backwards from the business model and mapped the niches first. A few examples:
-Industrial water treatment / Legionella management - route-based service built around ongoing chemistry checks and testing.
-Electrical preventive maintenance (NFPA 70B) - recurring testing and maintenance of electrical systems, not new construction.
-Generator & ATS testing (NFPA 110) - recurring backup-power testing across critical facilities.
-Biosafety cabinet certification - specialized recertification work for labs and healthcare facilities.
-Commercial kitchen hood cleaning / fire protection - recurring compliance work across commercial kitchens.
-Solar O&M - servicing existing systems instead of competing for new installs.
Once we had the niches, we took them into Grata, applied the relevant filters and ended up with an initial universe of 2,000+ companies.
And honestly, that number doesn’t mean much by itself.
Most of that list doesn't survive a closer look. We kept asking:
-Is the revenue actually recurring, or just repeatable?
-Is this a project-based business dressed up as a service company?
-Does the customer stick with the company, or with one guy who happens to work there?
-Is the owner basically the whole operation?
Contractors, equipment distributors, generic consultants - plenty of that fits the industry label and none of it fits the thesis. All of it gets cut before a single email goes out.
Only once the list is narrowed do we start enriching the survivors - people, emails, phone numbers, the stuff you actually need to reach out.
So the real question was never "how do you find 2,000 companies." It's: how do you turn 2,000 into the 100–200 actually worth a conversation. That's where most of the time goes.
Curious how other searchers and sponsors do this build the niche thesis first and search after, or start broad and let the thesis take shape once you see what's out there?
Based on the highest ranked content on WSO, your approach of building the niche thesis first before searching is spot-on and aligns with what top PE professionals recommend for effective sourcing.
Your methodology mirrors best practices in several key ways:
Thesis-First Approach: Starting with a clear business model definition (recurring/repeatable services in compliance niches) before searching is exactly what successful investors do. As noted in WSO's investment analysis framework, you should always understand what you're looking for before you start looking - it prevents you from getting distracted by irrelevant opportunities.
Quality Over Quantity: Your process of cutting from 2,000+ to 100-200 companies reflects the reality that most sourcing efforts fail at the filtering stage. The questions you're asking - about revenue quality, customer stickiness, and key person risk - are the exact value creation considerations that separate good PE professionals from great ones.
Niche Specialization: Your focus on compliance-driven verticals (NFPA standards, biosafety, etc.) demonstrates deep industry knowledge. This specialized approach is what allows you to identify businesses that don't show up in standard screens but have strong defensive characteristics.
To answer your question directly: The most successful searchers and sponsors typically follow your approach - thesis first, then search. Starting broad and letting the thesis develop often leads to analysis paralysis and wasted time on companies that don't fit your investment criteria.
Pro tip from WSO's sourcing experts: Consider building relationships with industry associations and regulatory bodies in these compliance niches. They often have member directories and can provide insights into which companies are actually the market leaders versus just participants.
Your systematic approach to narrowing the universe based on business model characteristics rather than just industry codes is exactly how you build a competitive sourcing advantage.
Sources: How to create value from my network, Thinking Like an Investor, Valuing a small privately held services company, https://www.wallstreetoasis.com/forum/private-equity/on-cycle-recruiting-2018-what-to-expect?customgpt=1, https://www.wallstreetoasis.com/forum/private-equity/then-and-now-compbanker?customgpt=1
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