How Early-Stage Investors Really Evaluate Startups

At Startup Boston Week, one of the conference’s final sessions tackled a question founders obsess over and investors debate constantly: when there’s limited traction, incomplete data, and plenty of uncertainty, how do investors decide whether to write a check?

Moderated by Lucia Maffei (Technology Reporter, Boston Business Journal), the panel brought together James Massaquoi of Glasswing Ventures, Ron Levin of Alumni Ventures, Jillian Chase of Azolla Ventures, and Andrew Bloom of Orrick. Together, they unpacked how investors assess founders, markets, risk, and red flags long before spreadsheets tell the full story.

Their answer? At the earliest stages, investing is part pattern recognition, part diligence, and part belief in the people building the company.

Watch the full Startup Boston Week 2025 session.

First Impressions Matter, But Not the Way Founders Think

Many founders assume investors are judging pitch polish or charisma in a first meeting. The panelists suggested something different.

For Massaquoi, one of the first signs of a strong founder is expertise. If an investor feels like they understand the market better than the founder does, that can be concerning. He looks for someone who deeply understands the space while also being focused on solving real customer pain points.

Levin said early meetings are often less about the product itself and more about motivation. Why is this founder obsessed with solving this specific problem? Can they communicate confidence without arrogance? Do they come across as resourceful and execution-oriented?

Chase added that one rare combination stands out immediately: passion paired with humility.

That blend matters because founders need conviction to keep going when things get hard, but enough humility to learn, adapt, and take feedback.

How Investors Spot Red Flags Early

The discussion also highlighted what causes investors to hesitate.

One common issue: defensiveness.

Chase noted that investors asking hard questions is usually a sign of interest, not rejection. Founders who become combative or dismissive during diligence can create concern quickly.

Levin emphasized communication. A deeply technical founder still needs to explain the product in terms others can understand. If they can’t translate complexity clearly, it raises questions about future hiring, sales, and partnerships.

Massaquoi looks for market awareness. If a founder doesn’t understand competitors, prior solutions, or customer alternatives, that can indicate they haven’t done enough homework.

In short: brilliance alone is rarely enough.

The Startup Can Be Great And Still Fail

One of the most valuable parts of the session was hearing examples of deals that looked promising but didn’t work out.

Chase shared a company in the cultivated meat space with compelling technology. But during diligence, the scientific founder driving the innovation had been pushed out with no equity. That internal dysfunction was enough for Azolla to walk away. The company later struggled.

Levin pointed to the reality of venture investing: many bets fail, even with smart investors involved. He referenced situations involving fraud, operational issues, and unforeseen internal problems.

Massaquoi described companies that were simply too early. In one case, the product addressed a real need, but buyers weren’t ready and sales cycles were too long for the company’s runway.

Timing, the panel made clear, can matter just as much as product quality.

What Winning Startups Tend to Get Right

When the conversation shifted to successes, a few consistent themes emerged.

Chase highlighted a startup using UV light to improve gene expression in seeds. The concept was difficult to explain, misunderstood by many, and had little traction early on. But after deeper diligence and patience, the company eventually commercialized equipment at scale.

Levin pointed to Sunbit, a company he backed that became a unicorn. What impressed him wasn’t hype, it was consistent execution. The company repeatedly set targets and hit them.

That reliability matters because investors see countless projections. Few companies consistently meet them.

Massaquoi shared a startup that had struggled initially, then reworked its product into what would later be recognized as an AI agent model before the category became mainstream. Strong timing and product evolution changed the trajectory.

The lesson: breakout companies often look messy before they look obvious.

How Investors Judge Market Size Before There’s Real Revenue

At the seed stage, many startups don’t yet have meaningful traction. So how do investors evaluate market opportunity?

Levin said investors build a narrative around whether the company can eventually become massive. Is the market large enough? Can the startup land with one customer segment and expand from there?

He also reminded the audience that early-stage investing assumes pivots may happen.

Massaquoi gave the most practical answer: talk to customers. His team often validates demand by speaking directly with the people who would eventually buy the product.

Chase pushed back on overused frameworks like TAM, SAM, and SOM, saying those models can become performative. What matters more is whether there’s a believable path to building a venture-scale company.

Advice for Founders Raising Capital

The panel closed with a question every founder asks: when should you start talking to investors?

The consensus was earlier than most think.

Chase said she likes meeting founders even before they are ready to raise, because early relationships can turn into later investments.

Levin, speaking from both founder and investor experience, encouraged founders to get the story into the market early rather than hiding in stealth mode.

Massaquoi offered a useful filter: don’t just ask whether an investor might give you money. Ask whether they’d be valuable even if they didn’t.

That mindset can save founders from chasing the wrong checks.

Final Takeaway

Early-stage investing will never be purely gut feel or purely game plan.

The best investors combine instinct with diligence. They study markets, ask hard questions, test assumptions, and then place bets on people capable of learning faster than the uncertainty around them.

For founders, that means the strongest signal often isn’t a polished deck or inflated forecast.

It’s clarity, coachability, resilience, and the ability to keep building when no one has all the answers yet.