How a Solo SaaS Founder Sold His Startup to Private Equity

**Lucas** (0:01)
So, I want to start today with a number that stopped me cold. Four million dollars in annual recurring revenue.
Solo founder, no VC money, no co-founders. And then he sold the whole thing to a private equity firm.

**Luna** (0:17)
Wait, a solo founder getting a PE exit? That's unusual.
Most PE firms want a management team, not one person who is basically the company.

**Lucas** (0:28)
Exactly. And that's exactly why this case is worth unpacking. The founder's name is David.
I'll use only his first name because the deal just closed in March, and he's still under some confidentiality. He built a SaaS platform called Subbase. It's compliance software for construction subcontractors.
Think insurance verification, lean waivers, OSHA paperwork.
Not sexy.

**Luna** (0:54)
Yeah, that is about as boring as B2B gets. But boring usually means sticky.
Once a contractor uploads all their compliance docs into a system, they're not leaving.

**Lucas** (1:05)
Exactly right. And David started it in 2019 as a side project. He was a project manager at a mid-sized construction firm in Houston. He saw that subcontractors were still faxing insurance certificates.
So he built a simple web app to digitize that. His first customer was his own employer.

**Luna** (1:27)
Classic scratch your own itch. How did he go from side project to 4 million ARR?

**Lucas** (1:33)
Slowly. He didn't quit his day job until 2021, when Subbase hit about 500,000 in ARR. And he never took a dime of outside capital. No angel, no seed, no venture. He just reinvested revenue.
By the end of 2023, he was at 2.8 million. And then he started getting inbound from PE firms.

**Luna** (1:58)
Why were they interested? It's a tiny market, construction compliance in what, Texas mostly?

**Lucas** (2:04)
That's exactly what David thought at first. But the PE firm, I'll call them Summit Street Capital, they explained their thesis. They already owned a portfolio company that did payroll software for construction firms.
Subbase was a bolt-on acquisition that would let them cross-sell to the same customer base. The math worked because the integration cost was low and the retention rate was over 95%.

**Luna** (2:30)
So it was a strategic add-on, not a standalone bet. That makes more sense. But David had to be willing to sell and to hand over his baby.

**Lucas** (2:41)
Right. And I think that's the part most solo founders struggle with.
David told me the negotiation took 6 months. The hardest part wasn't the valuation, it was the earn-out structure. P firms want the founder to stay for 2 to 3 years post-acquisition to ensure a smooth transition.

**Luna** (2:59)
Which for a solo founder means you're essentially still running the company, but now you have a boss and a board. Did he take that deal?

**Lucas** (3:07)
He did. The total consideration was around $12 million, half upfront, half in an earnout tied to revenue targets over 3 years. He walked away with about $6 million after taxes and legal fees.
Not a life-changing fortune by VC standards, but for a guy who started with a side project in his bedroom, it's a real liquidity event.

**Luna** (3:30)
$6 million is life-changing for most people, but I want to press on the earnout. That's a huge risk. What if the P firm strips costs or changes the product direction and revenue dips?
He could lose half his payout.

**Lucas** (3:45)
That's the tension. David negotiated hard on one specific point.
The earnout metrics were based on net revenue retention, not gross new sales. So he controlled the variable, keep existing customers happy and they renew. He didn't have to hit aggressive new customer quotas. That was smart.

**Luna** (4:05)
Clever. He basically bet on the moat he already built.
So, what's the lesson for a solo founder listening right now who dreams of an exit?

**Lucas** (4:15)
The biggest one is that PE exits are possible without venture funding, but only if you build in a market that larger PE-owned platforms want to consolidate.
Subbase worked because it sat inside construction, a fragmented industry where PE is actively rolling up software providers.
If David had built a task management app for graphic designers, that PE interest probably never comes.

**Luna** (4:39)
So the advice is, pick a boring, fragmented industry with lots of small competitors, and build the best-in-class tool for one narrow pain point. Then wait for the roll up.

**Lucas** (4:50)
Exactly. And be patient. David was bootstrapped for four years before he got that first PE call. Most founders give up after two.
The other thing he did well, he kept meticulous financial records, clean books, no co-mingling of personal and business expenses. PE firms run a quality of earnings audit, and if your QuickBooks is a mess, they walk.