A deeptech seed fund with the highest signal.
As the creators of Deep Checks, we know almost every deeptech VC. When we invest at pre-seed and seed, VCs take notice—and can fill out the rest of your round within days.
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 engineers and scientists come to us. Don't take our word for it—we're voted among the best deeptech funds. Why? Julian optionally embeds into your team to acquire your first 1,000 customers. Here's some of what we want to fund next:
We're interested in everything. Not listed? Send it anyway.
We've made the websites for nearly all of our startups
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.
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.
John was a Partner at Dorm Room Fund for four years, where he led multiple competitive investments including Ash and Endex.As an operator, he co-led sales and product from 0 to PMF as Chief of Staff at a disaster coordination platform.
Why Julian Capital?
Submit your deck
We review every deck. In 2026, we've already invested in two startups submitted via this form. Pre-seed and seed startups throughout the US and Canada are welcome.
We only invest in companies making something physical (AI software doesn't count). All sectors are welcome, including robotics, climate, chemicals, materials, medtech, chips, and more. We love early ideas, crazy ideas, and founders pursuing their life's mission.
Not raising? Refer another startup and earn carry.
