A deeptech seed fund with the highest signal.
As the creators of Deep Checks, we know nearly every other deeptech VC. When we invest, they pay attention—and can fill out the rest of your round within days. We invest across most deeptech sectors, and we don't constrain ourselves with theses. We back incredible founders chasing their life's work—no matter how niche.
We built DeepChecks.vc, which is the largest source of deeptech deal flow in the world. Deep Checks' CRM of scientist founders spans every niche from mining robotics to photonic chip interconnects—we have unparalleled reach.
As a result, when we invest, we intro you to most of your initial customers, partners, suppliers, and advisors. Because they're among the thousands of engineers who know and trust us. No one is as connected as we are in deeptech.
And given the quantity of deeptech VCs behind Deep Checks, we're in an incredible position to make investor intros for your future fundraising. We give you a serious advantage.
Case Studies
The best founders come to us first. We’re the first check for past unicorn founders pursuing their new deeptech companies. The results speak for themselves— fund 1's deeptech companies have a 100% Seed to Series A graduation rate. Those companies in our three-year-old fund have already raised $600M+.
Portfolio
Team
Julian was the VP of Marketing for Webflow ($4B+ valuation) and later ran growth for Heap Analytics ($960M+ valuation).
He then founded Demand Curve (YC S19), the largest educator of growth marketing for startups. His agency, Bell Curve, has grown LinkedIn, Ancestry, TechCrunch, and more. He also wrote TechCrunch’s marketing column.
However, most people know him for his longform handbooks on Julian.com. There, he built a large audience of startup founders plus he writes a popular newsletter.
Before growth marketing, Julian was an engineer. He built one of the most popular open source libraries: Velocity.js. He was awarded the Stripe Open Source grant and was profiled in Forbes.
Jacob was a founder and startup revenue leader before turning investor.
After founding a med device company, he was the CRO at MedStack, a healthcare DevOps platform, and then Head of Growth at Mammoth, an enterprise decarbonization company. He brings extensive sales and ops experience to hardware and climate companies.
Why Julian Capital?
Submit your deck
We review every deck within two days. Pre-seed and seed are welcome. In 2026, we've already invested in two companies submitted via this form.
We do not invest in software startups (that includes AI models)—we only invest in companies making something physical. Example sectors include robotics, energy, climate, chemicals, materials, medtech, chips, and more.
Julian lives on a ranch.
