Matias Van Thienen

Partner at Founders Fund

📍 San Francisco, California, United States🔄 Updated September 2026💼 22 investments📅 12 years investing🗓 Last invested Jan 2025
VC🌍 United States20+ investments
22
Total investments
7
Early stage
8
Mid stage
3
Late stage
12y
Years active

Portfolio

20 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
2025
Enter’s mission is to make Brazil a global leader in Artificial Intelligence. We combine AI with human expertise to automate critical processes for large enterprises. Starting with legal, Enter’s AI agents support lawyers across the full lifecycle of a lawsuit: case intake, fraud detection, settlement recommendations, drafting defenses, and interpreting rulings. Backed by Founders Fund, Sequoia Capital, Atlantico, and ONEVC.
Board Observer
2024
ARQ opens the worlds strongest assets and markets to travelers, investors, and professionals in the Americas – so they can grow their money wherever they are.
Board Observer
2024
Unleash your potential with a global financial system in your pocket. Join the movement to enjoy the best FX rates, local and international transfers and card payments - all from one app. Available in 🇲🇽, 🇦🇷 and 🇨🇴.
Seed Investor & Board
2021
Logistics is one of the single largest industries in the world ($8-12T globally, $2T in the US). A single percent of improvement drives profound change to every corner of the world -- from the cost of our goods, to the livelihoods of local communities, to even the impact on our environment. At TruckSmarter, we believe that to transform the industry, we must focus first on truck drivers. Trucks move 71% of freight in America & represent nearly 6% of the American workforce. However, despite the industry being one of the greatest levers of innovation throughout history, it is still deeply fragmented & structurally misaligned. Our mission is to empower truck drivers lives &, by doing so, build the future of the industry. Join us!
Series B Investor & Board Observer
2020
What does your Bank offer?
Series D Investor & Board
2020
Kavak is a global company with operations in Mexico, Argentina, Brazil, Chile, Turkey, Saudi Arabia, Oman and United Arab Emirates. We are the number one e-commerce company in the purchase and sale of pre-owned vehicles and the most highly valued private startup in Latin America. Kavak is also the first Unicorn Company in the history of Mexico, with a current valuation of US$8.7 billion. We have thousands of kavak@s from more than 40 different nationalities and growing. As part of this accelerated growth, we want to make sure we surround ourselves with the best talent to help us continue to build the technology, processes and products that will allow us to transform the automotive market around the world. Our team is the number one priority. We like to imagine the impossible and work together to achieve it. We are disruptive, proactive, loyal and ambitious. Interested in joining? Apply now.
Board Observer
2020
LeafLink is the industrys wholesale platform. Easily and efficiently sell, ship, pay, get paid, advertise and drive margin. LeafLink is live in 30 markets with over $5B in annual orders.
Seed Investor
2020
Belvo is the leading #openfinance data and payments platform in Latin America. We enable financial innovators to access and interpret data as well as initiate payments from their users accounts – with the aim of powering more efficient, secure, and inclusive products.
Board Observer
2019
Cedar’s mission is to empower us all to easily and affordably pursue the care we need—and is fulfilling that mission by powering multi-party integrations throughout the healthcare ecosystem. With an innovative platform that connects providers and payers, Cedar empowers healthcare consumers with an optimized and connected end to end experience—all powered by data science and interactive design.
Series B Investor & Board Observer
2019
Modern Health is the comprehensive global mental health solution offering employees access to one-on-one, group, and self-serve digital resources for their emotional, professional, social, financial, and physical well-being needs - all within a single platform. Whether someone wants to proactively manage stress or treat depression, Modern Health guides people to the right care at the right time. Modern Health empowers companies to help all their employees be the best version of themselves and believes in meeting people wherever they are in their mental health journey. Modern Health is backed by investors like Kleiner Perkins, Founders Fund, John Doerr, Y Combinator, and Battery Ventures and has raised more than $170 million in less than two years with a valuation of $1.17 billion, making Modern Health the fastest entirely female-founded company in the U.S. to reach Unicorn status.
Series C Investor
2019
Scale’s mission is to develop reliable AI systems for the world’s most important decisions. We provide the high-quality data and full-stack technologies that power the world’s leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. The Scale Generative AI Platform allows customers to build, evaluate, and control advanced AI agents and applications that continuously improve. The Scale Data Engine provides the technology to collect, curate, and annotate high-quality datasets. Through our Scale Labs, we test models with rigorous benchmarks and novel research to ensure breakthroughs translate into systems people can trust. Scale powers the most advanced LLMs and generative models in the world through RLHF, data generation and model evaluation. We work with industry leaders like Meta, Cisco, DLA Piper, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force.
Board Observer
2018
At Solugen, we believe planet-scale change starts with the chemistry we use every day. We’re revolutionizing how things are made with the world’s first carbon negative molecule factory: the Bioforge. Harnessing the power of evolved enzymes, plant-based feedstocks, and clean, catalytic reactions, we are making the materials we need to sustain life on Earth—faster, cheaper, and without emissions or waste.
Series C Investor
2018
Carta powers interconnectivity in private markets — uniting data, people, and workflows in one connected system. We connect founders, investors, and limited partners through software purpose-built for private capital. Trusted by 50,000+ companies in 160+ countries, Carta’s platform of software and services lays the groundwork so you can build, invest, and scale with confidence. Carta’s Fund Administration platform supports 8,500+ funds and SPVs, representing nearly $185B in assets under management, with tools designed to enhance the strategic impact of fund CFOs. Carta has been included on the Fortune Best Large Workplaces in Financial Services and Insurance and Best Workplaces in the Bay Area lists, Forbes’ list of the Worlds Best Cloud Companies, Fast Companys Most Innovative list, Inc.s Fastest-Growing Private Companies list, and is certified as a Great Place to Work for 2025-2026 (3 years running!). For more information, visit carta.com.
Seed Investor
2018
Dutchie is the leading technology partner for cannabis retailers of all sizes. With a range of solutions covering point of sale, payments, ecommerce, insurance, and more, Dutchie empowers dispensaries to run efficiently, scale their operation easily, stay compliant, and offer outstanding experiences to the customers who rely on them.
Series C Investor & Board Observer
2018
RigUp is now Workrise - the leading workforce management solution for the skilled trades. Learn more at workrise.com
Show all 20 investments ↓
Experience · 25 entries
All (25)
Investments (22)
Board (11)
2025
Board Member
2025
Enter’s mission is to make Brazil a global leader in Artificial Intelligence. We combine AI with human expertise to automate critical processes for large enterprises. Starting with legal, Enter’s AI agents support lawyers across the full lifecycle of a lawsuit: case intake, fraud detection, settlement recommendations, drafting defenses, and interpreting rulings. Backed by Founders Fund, Sequoia Capital, Atlantico, and ONEVC.
2024
Board Observer
2024
ARQ opens the worlds strongest assets and markets to travelers, investors, and professionals in the Americas – so they can grow their money wherever they are.
Board Observer
2024
Unleash your potential with a global financial system in your pocket. Join the movement to enjoy the best FX rates, local and international transfers and card payments - all from one app. Available in 🇲🇽, 🇦🇷 and 🇨🇴.
2021
Seed Investor & Board
2021
Logistics is one of the single largest industries in the world ($8-12T globally, $2T in the US). A single percent of improvement drives profound change to every corner of the world -- from the cost of our goods, to the livelihoods of local communities, to even the impact on our environment. At TruckSmarter, we believe that to transform the industry, we must focus first on truck drivers. Trucks move 71% of freight in America & represent nearly 6% of the American workforce. However, despite the industry being one of the greatest levers of innovation throughout history, it is still deeply fragmented & structurally misaligned. Our mission is to empower truck drivers lives &, by doing so, build the future of the industry. Join us!
2020
Series B Investor & Board Observer
2020
What does your Bank offer?
Show all 25 entries ↓
Investment activity
2014–2025 · 22 investments
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