Michael Grinich is the solo founder of Work OS, a company that helps SaaS startups become enterprise-ready, now in its year eight with nearly 120 employees and tens of millions in ARR. He previously founded another company right out of school, and that experience shaped how he approached his second startup: he deliberately chose a problem that matched his existing skills, spent a year and a half filtering ideas through a notebook process, and moved fast enough that co-founders never materialized. The episode explores his philosophy on solo founding, the myth of the co-founder blood bond, the trauma of pivoting, the necessity of founder sales, and the deeply personal transformation that comes from building something entirely your own.
The co-founder blood bond is a myth
The romantic notion that co-founders are “ride or die till the end” doesn’t match reality. The most common outcome for companies with multiple co-founders is that years in, only one person is still running it.
Facebook had four co-founders. It was always Zuck’s company and still is.
Stable long-term matching of multiple leaders is extremely rare. There’s only room for one person to have the deepest, most obsessive connection to the company.
If you’re going to start a company, the key question is: are you the person who will hold it forever? You can have co-founders or not, but you need to internalize that this is your life’s work.
Not everyone wants or needs that soul-binding relationship with their work. Some people join because the idea sounds good, or they couldn’t get another job, or they’re open to doing something else.
That obsessive, can’t-turn-it-off relationship with the company is what Grinich calls “founder pixie dust.” It’s not healthy, but it’s what drives things forward.
When multiple co-founders both have that fire, it often explodes. Co-founder partnerships are dissolving faster now than they used to be, partly because the speed of modern startups amplifies friction.
Why he went solo on Work OS
Grinich was open to co-founders but moved so fast that no one was waiting in the wings. He chose a problem that fit his existing skills: he knew how to write software, hire engineers, build APIs, and sell to developers.
If he had started something in hardware, electronic medical records, or another domain requiring relationships and expertise he lacked, he would have sought a co-founder.
He deliberately selected the idea with the highest chance of working given his skill set, rather than pursuing ideas where he’d have to learn from scratch.
The bear case for solo founding: you miss out on the deep creative partnership (the John Lennon to your Paul McCartney), you’re socially isolated, and you might burn out before making it.
Humans are social creatures. Starting a company is a machine of isolation that can mess with your psyche.
You might have a great idea but lack the network or horsepower to execute it.
The bull case: it’s yours. The company becomes a mirror that shows you every imperfection and weakness, forcing accelerated personal growth. You get to build something from nothing that becomes an institution outlasting you.
Grinich compares it to the satisfaction of creating life. The company starts as a secret only you know, and you bring it into existence through sheer belief and effort.
He describes it as an adaptive video game layered on top of your life, and as the ultimate expression of creative ownership. You only get one life—why not swing as hard as you can?
Speedrunning the second company
Because Grinich had already built one company, he compressed what normally takes years into months. His first company was a bootup phase where he learned through trial by fire with relatively low consequences, especially during the COVID era when growth ceilings were lower.
Now the environment is different. When things hit, they hit immediately. New founders don’t get 18 months to figure out engineering management or sales—they need to learn in weeks.
The learning rate required to capture lightning in a jar is much higher than it used to be.
Before starting Work OS, Grinich wrote down all his weaknesses and built a plan to address them: who to hire as mentors, who the “kings and queens” of each domain were, what books to read.
He didn’t know who the idols of sales, marketing, operations, or finance were. He only knew engineering idols like John Carmack.
He had to learn that the CFO is really the business model architect of a company—a realization that came from moving beyond the engineering-centric mindset that “if you make something people want, everything takes care of itself” (which is not true).
The notebook and idea selection process
Grinich spent about 18 months deciding what to do next, studying creative process through books like Steve Martin’s Born Standing Up and observing how comedians develop material through constant iteration and selection.
He carried a notebook everywhere, writing down one idea per page: things he was curious about, things changing the world, things that kept coming back to him.
Pages where ideas accumulated over time signaled genuine interest and potential.
He filtered ideas through four criteria:
Unique information: Personal experiences where he knew something the market didn’t yet realize. Failure is the best source of this—when you fail, you learn something others haven’t absorbed.
Enormous markets: You can’t outrun a small TAM. He looked for areas ripe for disruption that hadn’t been touched (like fintech before Stripe).
Skill fit: Could he execute quickly without learning from scratch? He had ideas for electric airplanes and AI infrastructure but rejected them because the timeline to viability was too long.
Practical timeline: He needed to show something working within about 12 months, or investors lose interest and the team gets anxious.
He walked away from ideas he found more exciting conceptually—anti-radicalization technology, software stacks for cars, AI training infrastructure—because they couldn’t become businesses fast enough.
Work OS (helping SaaS companies become enterprise-ready) wasn’t the sexiest idea. Some candidates didn’t want to work on it. But it was infrastructure everybody needs, the timing was right, and he could build it.
Building a business, not a tech demo
Grinich’s first company was a cool technology in search of a business. The best case in that scenario is you get lucky and stumble into a business model. He wanted Work OS to integrate product and business model from the start.
He focused on the pain in the market, not the technology. Who cares what you’re building? What does it do for people?
He wrote a one-page document about the company a year after starting that he could send to customers today unchanged. The core thesis has never shifted.
He believes pivots are traumatic and should be avoided at all costs. Changing what you are and why you exist on a whim signals a lack of integrity and makes it hard for teams, customers, and investors to know who you are.
Iteration and learning from the market is different from pivoting. Launching a feature, killing it if it doesn’t work, and moving on is healthy. Changing your identity is not.
He compares a company to an institution like The Lion King on Broadway: it outlasts every individual person involved. Customers need to believe you’re a durable supplier who won’t change who you are on a whim.
If the core thesis is invalidated, you should “run the algorithm again”—form a new team, recycle the capital—rather than pivot pivot pivot until no one knows what your company is.
The best ideas look like bad ideas initially. If everyone agrees your idea is great, a larger company with more resources will build it and own the mindshare.
You need contrarian pressure: a secret about the market that only you know from lived experience. This lets you be misunderstood long enough to gain momentum before others wake up.
Fundraising difficulty is a prerequisite for success. If you pitch 10 VCs and get 6 term sheets, you should reconsider the idea. If everyone says no, you might be onto something.
Surviving being misunderstood for a long period of time is painful but necessary. You might actually be wasting your time—but you don’t know, and it’s a filter for founder commitment.
Founder sales and the journey from avoidance to obsession
Grinich spent years believing he could never be good at sales. As a CS grad, he internalized the trope that engineers hire salespeople to whip the company into shape. He had no data supporting this about himself—it was just a story he absorbed.
For the first phase of his sales journey, he chose not to learn. He hired others to do it and stumbled through it himself, interpreting every stumble as confirmation that he sucked at it.
He eventually realized sales is the ultimate distillation of the company’s value to the market. It’s the performance, like a comedian on stage. Without it, you’re missing the whole point.
Sales is mostly curiosity and asking questions. The best form is understanding a customer’s problem so well that you wrap your product around their goals—they don’t feel sold to, they feel helped.
Great salespeople exist who aren’t the stereotypical “alpha male in a Porsche” type. He met Chris Merritt, who led sales at Cloudflare, and was stunned by how cerebral and engineering-minded he was.
Grinich took the company to tens of millions in ARR doing sales himself. He only hired his first true head of sales recently, and the mindset was collaboration, not handoff.
Previous hires failed because he hired from a place of “I suck at this, you take over.” Great salespeople can smell that and it becomes an ego trip for them.
The right head of sales should be curious about how the founder has been doing it and want to collaborate, with the founder staying close to customers.
He now loves sales more than anything else in his job. He describes it as something people will have to pry from his cold dead hands.
His advice: if you haven’t been wowed by a great salesperson yet, make it your personal goal to find one. Interview CROs, pay an exec recruiter, cast a wide net. Once you know they exist, you can structure a process to bring that into your company.
The company as mirror and institution
Grinich describes the company as a mirror that constantly shows you every imperfection and weakness. It’s inescapable—your flaws become the hardest obstacles you must overcome.
This is the extreme sport version of personal growth. Not everyone wants it, and not every company demands the same journey, but for those who embrace it, the transformation is profound.
He’s drawn to the idea of building institutions that outlast any individual person. He tells the story of a Disney exec who worked on The Lion King, which was based on a childhood story. The story itself became the thing that continues—not the story of the person who created it.
The entrepreneurial desire is to spin a plate and eventually have it fly on its own. If it fully came from you, that satisfaction is irreplaceable.
He acknowledges this level of connection probably wouldn’t have been possible if he’d started with co-founders. The full ownership and agency is a double-edged sword—you can’t blame others when things go wrong, and successes aren’t shared—but when it works, it’s really special.
He doesn’t know if he’ll ever get another one of these in his career. Getting product-market fit is like rolling the dice. But he’s having more fun right now than at any point in his life, and he encourages others to swing as hard as they can.
