29
Total investments
12
Early stage
10
Mid stage
1
Late stage
13y
Years active
Portfolio
27 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
May 2026
Most of todays AI is focused on the fun stuff like making art, writing music, or simulating relationships. At Spool, we are building for the other side of the coin.
Spool is a consumer AI designed to help you think through life’s logistics and, more importantly, actually carry them out. We turn vague, overwhelming problems into clear plans and then take care of the follow-through. That means handling the "admin rage" moments that quietly eat your evenings: the insurance claims, the billing errors, the endless scheduling, and the coordination that usually requires five tabs and three phone calls.
We are a tiny team of humans obsessed with building a product where trust, taste, and results are the only metrics that matter.
The goal isnt just to give you an assistant. The goal is to give you your time back.
What we’re solving:
Strategy: Helping you decide what actually makes sense to do next when life feels messy.
Execution: Making the calls, filling out the forms, and navigating the menus on your behalf.
Persistence: Following through on the mundane tasks that modern life requires but nobody enjoys.
We’re currently in early development and building alongside a thoughtful community of early users.
Join the waitlist: tryspool.com
Investor
Jan 2026
Tarly is a secure AI platform for government acquisition defensibility.
We want to stop government contracts from ripping off the American People and the hardworking public servants that work inside our federal agencies. If youre curious about how our government spends your taxpayer dollars on federal procurement, you can see yourself by simply going to tarly.co
The devil is in the details.
Investor
Sep 2025
Eridu is the pioneer advancing the frontier in AI networking, breaking through the network wall with a solution built from the ground up for scale-out and scale-up networks in AI data centers.
Eridu’s network switch delivers the order-of-magnitude advance in performance, radix and throughput needed to maximize utilization, throughput and efficiency in AI clusters and data centers. Founded by a team of accomplished technology and business innovators and backed by leading investors with over $200M in funding to date, Eridu is solving the network bottlenecks throttling AI.
Investor
Sep 2025
A network for entrepreneurs building in stealth.
Submit your information here so investors can find you:
harmonic.ai/get-discovered
Co-Lead Investor
Jun 2024
Synthetic Design Lab- a product focused "Smart" therapeutic Technology Platform company building Next Generation Antibody Drug Conjugates (ADCs).
Co-lead Investor
May 2023
Junevity is rewinding diseases of aging with novel transcription factor medicines. Based on 6 years of breakthrough research at UCSF, Junevity is advancing novel therapies towards a new era of rejuvenating medicine.
Investor
May 2022
Broccoli AI is building the future of customer service for the trades. Our AI voice agents help plumbing, HVAC, and electrical businesses deliver fast, reliable, and empathetic support around the clock. Our mission is simple: to democratize great customer service so every contractor, no matter their size, can give customers the experience they deserve.
Investor
Jan 2022
Build A Rocket Boy is an independent game developer, headquartered in Edinburgh Scotland, with operations in Budapest Hungary, the Netherlands, France, and California USA. Led by game developer Leslie Benzies, Build A Rocket Boy’s team includes hundreds of the industry’s brightest development talents with the shared vision to create new and innovative entertainment experiences. Build A Rocket Boy’s first project is EVERYWHERE – a new multi-world game experience that blurs the line between reality and the digital world.
Investor
Sep 2021
Delivering application-specific digital infrastructure for emerging forms of compute (Nasdaq: CORZ)
Investor
Sep 2021
54gene addresses the significant gap in the global genomics market; Nearly 90% of genetic material used in pharmaceutical research is Caucasian. Only 2% is African, despite the fact that Africans and people of African ancestry are more genetically diverse than all other world populations combined. As a result, pharmaceutical research and development is lacking the diverse data that may hold the key to medical discoveries and new healthcare solutions.
Investor
Jul 2021
bolttech is an international insurtech with a mission to build the world’s leading, technology-enabled ecosystem for protection and insurance. Headquartered in Singapore, bolttech serves customers in 35+ markets across North America, Asia, Europe and Africa.
With a full suite of digital and data-driven capabilities, bolttech powers connections between insurers, distributors, and customers to make it easier and more efficient to buy and sell insurance and protection products.
For more information, please visit https//bolttech.io.
Investor
Mar 2021
Invest in Bitcoin with confidence
Buy BTC | Zero-fee DCA | 100% reserve custody | Lightning ⚡
Show all 27 investments ↓
Experience · 33 entries
All (33)
Investments (29)
Founder (2)
2026
Investor
May 2026
Most of todays AI is focused on the fun stuff like making art, writing music, or simulating relationships. At Spool, we are building for the other side of the coin.
Spool is a consumer AI designed to help you think through life’s logistics and, more importantly, actually carry them out. We turn vague, overwhelming problems into clear plans and then take care of the follow-through. That means handling the "admin rage" moments that quietly eat your evenings: the insurance claims, the billing errors, the endless scheduling, and the coordination that usually requires five tabs and three phone calls.
We are a tiny team of humans obsessed with building a product where trust, taste, and results are the only metrics that matter.
The goal isnt just to give you an assistant. The goal is to give you your time back.
What we’re solving:
Strategy: Helping you decide what actually makes sense to do next when life feels messy.
Execution: Making the calls, filling out the forms, and navigating the menus on your behalf.
Persistence: Following through on the mundane tasks that modern life requires but nobody enjoys.
We’re currently in early development and building alongside a thoughtful community of early users.
Join the waitlist: tryspool.com
Investor
Jan 2026
Tarly is a secure AI platform for government acquisition defensibility.
We want to stop government contracts from ripping off the American People and the hardworking public servants that work inside our federal agencies. If youre curious about how our government spends your taxpayer dollars on federal procurement, you can see yourself by simply going to tarly.co
The devil is in the details.
2025
Investor
Sep 2025
Eridu is the pioneer advancing the frontier in AI networking, breaking through the network wall with a solution built from the ground up for scale-out and scale-up networks in AI data centers.
Eridu’s network switch delivers the order-of-magnitude advance in performance, radix and throughput needed to maximize utilization, throughput and efficiency in AI clusters and data centers. Founded by a team of accomplished technology and business innovators and backed by leading investors with over $200M in funding to date, Eridu is solving the network bottlenecks throttling AI.
Investor
Sep 2025
A network for entrepreneurs building in stealth.
Submit your information here so investors can find you:
harmonic.ai/get-discovered
Show all 33 entries ↓
Investment activity
2013–2026 · 29 investments
Recent (last 2 years)Earlier
