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  1. A Product Market Fit Show | Startup Podcast for Founders
  2. 1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock
1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders · Jul 20, 2026

First-time solo founder Damien Lewke shares how 90 customer interviews in 90 days led to a $25M Series A for his startup, Nebulock.

Solo Founders Must Hire VPs Earlier to Fill Co-Founder Gaps

Unlike multi-founder teams, solo founders lack built-in executive coverage. To compensate, they should hire senior leaders sooner than typical, even with a small team, to own critical functions and enable the founder to focus on other fires.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

Run 90 'Mom Test' Customer Interviews in 90 Days Before Building

Before writing code, dedicate 90 days to high-volume customer discovery. Focus on their problems and priorities, not your idea. This builds a market map, validates the core thesis, and prevents building the wrong product, while creating a warm list of potential design partners.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

A Founder's Job Is to Solve Unknowns, Then Hire to Scale the Solution

Founders should focus their time on de-risking the business by tackling the biggest unknowns (the "fires"). Once a process is working, hire a leader to run and scale it. This frees the founder to move to the next unsolved problem, rather than hiring leaders to fix broken systems.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

Structure Design Partnerships in Phases: Start with Time, End with Money

Early design partnerships should only ask for a prospect's time, such as a 30-minute weekly meeting. Don't introduce POC documents or pricing until you have a valuable product to sell. This low-commitment start builds relationships and earns the right to ask for a purchase later.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

Make Friends in Procurement and Legal Before Your Champion Has Budget

Enterprise deals often stall in procurement or legal, not with the business champion. From the start of a POC, identify and build relationships with stakeholders in these departments. Parallelize legal paperwork with technical validation to prevent late-stage delays and shorten sales cycles.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

True Enterprise PMF Is When Your Product Reveals a C-Level Cultural Problem

A powerful PMF signal in large enterprises is when your tool uncovers a finding so significant it gets escalated to the C-suite. If it reveals a systemic or cultural issue, it proves you're solving a top-tier problem, unlocking immediate budget and fast-tracking the deal.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

Commit to Founding Only If You'd Solve the Problem for Zero Pay

Before taking the leap, use this litmus test: 'If I made zero dollars and all I could do was tackle this problem, would I do it?' If the answer is an unequivocal yes, you have the necessary obsession with the problem, which is more critical than being attached to your initial solution.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago

Fly to Meet Your First 8 Enterprise Customers Before Sending a PO

In early-stage enterprise sales, in-person meetings are crucial for building the trust needed to close deals. The founder should physically meet with early customers to build genuine relationships and navigate internal politics, which is difficult to do remotely.

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock thumbnail

1st-time solo founder does 90 interviews in 90 days—closes a $25M Series A 2 years in. | Damien Lewke, Founder of Nebulock

A Product Market Fit Show | Startup Podcast for Founders·a day ago