The Scientist-Investor: How Technical Depth is Reshaping Deep Tech VC

PALO ALTO, CA – April 09, 2026 – Gigascale Capital, the venture firm co-founded by former Meta CTO Mike Schroepfer, recently announced the promotion of Evaline Tsai, Ph.D., to Partner. While partner promotions are routine in Silicon Valley, Tsai’s ascent is emblematic of a significant shift in venture capital, particularly for firms investing in the complex, high-stakes world of deep tech and climate innovation. Her trajectory from scientist to founder to operator and now partner underscores a growing conviction: to fund the future of the physical world, investors must be able to understand it at a molecular level.

Tsai's promotion solidifies Gigascale's bet on a new archetype of venture capitalist—one who combines granular scientific fluency with the hard-won experience of building a company from the ground up. In an era defined by urgent climate challenges and the need to overhaul legacy industries, this model is moving from a niche advantage to an absolute necessity.

A New Breed of Investor

Evaline Tsai’s resume reads less like a traditional VC’s and more like a blueprint for a modern deep tech leader. With a Ph.D. in Chemical Engineering and Biotechnology from the University of Cambridge and a BSE in Chemical and Biological Engineering from Princeton, her academic credentials provide a deep well of technical knowledge. But unlike purely academic experts, Tsai has direct experience translating science into commercial reality.

During her Ph.D., she co-founded Cambridge Cancer Genomics, a Y Combinator-backed healthcare company that used machine learning for personalized oncology and was later acquired by Dante Labs. This experience as a founder provides her with an invaluable perspective on the challenges her portfolio companies face. Following her startup journey, she joined the industrial IoT giant Samsara as its first product manager for AI and machine learning, where she was granted four patents, gaining crucial operational experience in scaling technology within a large enterprise.

Before joining Gigascale, Tsai honed her investment acumen at Fine Structure Ventures, where her portfolio included ambitious companies like Commonwealth Fusion Systems and Boston Metal. This combination of scientific, entrepreneurial, and operational expertise is precisely what Gigascale believes is essential for its mission.

“Evaline is the kind of investor deep tech founders seek out,” said Victoria Beasley, General Partner of Gigascale Capital. “She can engage at the most granular scientific level and help founders build from breakthrough to scale. That combination is rare, and it’s exactly what founders working on hard problems need.”

Rebuilding the Physical Economy

Gigascale Capital was founded in 2023 with a distinct and ambitious thesis: to back early-stage companies “rebuilding the physical economy.” This refers to the foundational sectors of society—manufacturing, energy, transportation, agriculture, and construction—that constitute the majority of global GDP and carbon emissions. The firm’s strategy is not simply to fund “green” alternatives, but to invest in solutions that, at scale, are fundamentally “cheaper, more productive, and less polluting.”

This philosophy posits that sustainable adoption is driven by superior economics, not just environmental goodwill. Climate impact, in this model, is the powerful byproduct of creating better-performing systems that businesses would choose regardless of their carbon footprint. The firm, led by Schroepfer, Beasley, and Tsai, brings together deep expertise from technology, climate investing, and now, with Tsai’s promotion, an even stronger core of scientific and operational leadership.

“Evaline embodies how we operate at Gigascale. We show up for founders as a team,” said Mike Schroepfer, the firm’s Founding Partner. “That’s how we help companies move from breakthrough to scaled deployment, and how we build a firm that drives climate impact at scale.”

The Power of Early, Science-Backed Conviction

Nowhere is the value of Tsai’s approach more evident than in her early backing of Solcoa, a company developing a cleaner process for rare earth element production. Tsai championed founder Hooman Reza Nezhad long before the company was an obvious bet.

“Evaline backed me while I was still in high school, before anyone else was paying attention,” Nezhad stated. “She took the science seriously and championed what we were building long before the opportunity was obvious.”

This early conviction was rooted in a shared understanding of the technical challenge. As Tsai herself explained, “Founders building in this space are often doing something no one has done before. My job is to understand the science well enough to know what’s real and to be a partner in the decisions that don’t have a playbook.”

Their shared thesis was that the U.S. could not compete with China in rare earth production by simply copying existing, environmentally damaging processes. Instead, Solcoa pursued a fundamentally better method that is cleaner, has a smaller footprint, and is ultimately cheaper. Less than two years after Tsai’s initial backing, Solcoa has produced its first materials and built a pilot plant in San Francisco, validating the approach and demonstrating a viable path to reshoring a critical supply chain without the immense environmental toll of conventional methods.

From Lab Bench to Market Scale

Tsai’s influence extends across the Gigascale portfolio, where she serves as a Board Observer for companies like Cocoon, Dioxycle, Pasture Biosciences, Skouria, Terradot, and Vor Systems. These investments reflect the firm's core thesis in action.

Dioxycle, for example, is developing a low-temperature electrolyzer to convert CO2 emissions into ethylene, a foundational chemical for countless products. Its technology promises to deliver this sustainable ethylene at a lower cost than fossil-fuel-based equivalents, offering a “green discount” rather than a “green premium.” Similarly, Cocoon is creating a low-carbon cement replacement for concrete that is designed to be cost-competitive from the outset, removing the economic barriers that have slowed the decarbonization of construction.

These companies represent the frontier of deep tech, where success hinges on navigating the treacherous path from scientific discovery to industrial-scale production. It is here that investors like Tsai become critical partners, not just capital providers. Their ability to vet novel science, guide technical roadmaps, and connect founders with the right resources can mean the difference between a breakthrough remaining in the lab and it becoming a world-changing commercial product.

As venture capital continues to pour into climate and deep tech, the firms that succeed will be those who can do more than just write checks. They will be the ones built on a foundation of genuine technical understanding and operational empathy. Evaline Tsai’s promotion to Partner is not just a personal achievement but a clear indicator that at Gigascale Capital, and increasingly across the industry, deep scientific expertise is the new cornerstone of building a more sustainable and productive physical world.