Blocktech Ventures · Seed · Silicon Valley

Engineers backing engineers.

A Silicon Valley seed firm founded by two engineers. We back technical founders building AI infrastructure and AI apps, robotics, decentralized infrastructure, payment rails and virtual worlds, from the first check.

The Blocktech cube as points, pulled apart into three layers: Scale on top, Advise at the core, Fund at the base. CH 03 Scale CH 02 Advise CH 01 Fund
Fig. 01 · The firm, exploded: Fund at the base, Advise at the core, Scale on top Core · Advise: the centre of the cube, where we work with founders

Stage

Seed

Companies

20

Sectors with companies

05 of 07

Founders

02 · both engineers

Base

37.34° N 121.89° W

Portfolio · 20 companies · 05 sectors

Portfolio

Twenty companies, each backed at seed. Plotted by sector, then listed in full with what they build.

Star chart of the Blocktech Ventures portfolio: 20 companies plotted by sector. AI · 07 ROBOTICS · 01 PROTOCOLS · 06 FINTECH · 04 WORLDS · 02 SECURITY · WATCHING HEALTH · WATCHING Lambda Positron Go.AI Pandatron Higgsfield Artisight Knit Apptronik Sui DFINITY Cartesi Polkadot Filecoin NEAR Coinflow MultiBank Beep Origin Decentraland Party Space
Angle = sector · distance from centre carries no meaning · centre = us
Filter by sector

Twenty companies in five sectors. Choose one to see what we mean by it.

The compute that runs AI models and the products that put them to work.

Machines that move through the physical world: humanoids, vehicles, automation.

Open networks for compute, settlement and ownership.

New rails for moving and holding money.

Shared 3D spaces where people meet, build and trade.

Also watching: security, digital health. No companies yet.

  1. BT-01 Lambda logo Lambda AI · Infra GPU cloud for training and running AI models. lambda.ai ↗
  2. BT-02 Positron logo Positron AI · Infra Purpose-built hardware for running generative AI models. positron.ai ↗
  3. BT-03 Go.AI logo Go.AI AI · Infra On-premises AI for banks, credit unions, insurers and healthcare. go.ai ↗
  4. BT-04 Pandatron logo Pandatron AI · Apps AI coaching and training that turns strategy into day-to-day behavior change. pandatron.ai ↗
  5. BT-05 Higgsfield logo Higgsfield AI · Apps AI creative suite for generating images, video and voice. higgsfield.ai ↗
  6. BT-06 Artisight logo Artisight AI · Apps AI that turns hospital rooms into smart rooms for virtual nursing and safer care. artisight.com ↗
  7. BT-07 Knit logo Knit AI · Apps AI-native consumer research: researchers and AI agents run studies end to end for major consumer brands. goknit.com ↗
  8. BT-08 Apptronik logo Apptronik Robotics & autonomy General-purpose humanoid robots. apptronik.com ↗
  9. BT-09 Sui logo Sui Decentralized infrastructure Layer 1 blockchain built for low-latency applications. sui.io ↗
  10. BT-10 DFINITY logo DFINITY Decentralized infrastructure The Internet Computer: a decentralized cloud. dfinity.org ↗
  11. BT-11 Cartesi logo Cartesi Decentralized infrastructure Rollups that run a full Linux stack. cartesi.io ↗
  12. BT-12 Polkadot logo Polkadot Decentralized infrastructure Multichain protocol for interoperable blockchains. polkadot.com ↗
  13. BT-13 Filecoin logo Filecoin Decentralized infrastructure Decentralized storage network. filecoin.io ↗
  14. BT-14 NEAR logo NEAR Decentralized infrastructure Layer 1 blockchain built for AI agents and apps. near.org ↗
  15. BT-15 Coinflow logo Coinflow Fintech & payments Checkout and payout rails across cards, banks and stablecoins. coinflow.cash ↗
  16. BT-16 MultiBank logo MultiBank Fintech & payments Regulated derivatives group with a digital-asset exchange. multibank.io ↗
  17. BT-17 Beep logo Beep Fintech & payments Agentic finance: accounts and investing tools for AI agents. justbeep.it ↗
  18. BT-18 Origin logo Origin Fintech & payments Origin Protocol: yield-bearing stablecoin and ETH products. originprotocol.com ↗
  19. BT-19 Decentraland logo Decentraland Virtual worlds Virtual world owned and governed by its users. decentraland.org ↗
  20. BT-20 Party Space logo Party Space Virtual worlds Virtual venues for corporate and community events. party.space ↗

Logos shown as monochrome plates: a positive print on light, a negative on dark. Each mark belongs to its company.

02 · How we work

Fund, Advise, Scale: open from the first check.

Blocktech Ventures is a Silicon Valley seed firm founded by two engineers, its CEO and its CTO. We back technical founders building frontier technology, from zero to one. We do the technical diligence ourselves, and we stay hands-on after the check.

The cube in our mark is the firm: Fund at the base, Advise at the core, Scale on top.

Ch 01 · The base

Fund

Seed checks into technical founding teams, held for the long term.

  • Pre-seed and seed checks into frontier technology, from zero to one
  • Technical diligence done by engineers: the firm’s founders, its CEO and CTO
  • Held for the long term
Ch 02 · The core

Advise

Engineers and operators working with founders, hands-on, from the first check.

  • Technical architecture and product
  • Recruiting the first key hires
  • Go-to-market: the first customers and how to reach them
Ch 03 · On top

Scale

Introductions through a global corporate network, and the ground work for the next round.

  • Introductions to customers and partners
  • Introductions to talent
  • Preparing the next round, and introductions to later-stage investors

Team · 02 founders · both engineers

The people you will work with.

Blocktech Ventures is its two founders. Both are engineers, and both work with every company we back.

Portrait of Bogdan Alexandrescu
Plate 0137.34° N 121.89° W

Founder & CEO

Bogdan Alexandrescu

Engineer. Founder and CEO of Blocktech Ventures. Co-founder and VP of Engineering at Saga, where he leads the engineering organization.

Portrait of Emanuel Mazzilli
Plate 0237.34° N 121.89° W

Founder & CTO

Emanuel Mazzilli

Engineer. Founder and CTO of Blocktech Ventures.

04 · Notes

What we are reading the field for.

Pitch · read by both founders

Pitch us.

One form, no warm introduction needed. Tell us what you are building and which part is hard.

Transmission formTo both founders

What it does, for whom, and the number that proves it. 280 characters.

Sending this form emails your pitch to both founders, who read it to review it and reply.

Questions founders ask

Do I need a warm introduction?
No. Use the form. Both founders read every pitch.
What do you invest in?
Technical teams building frontier technology: AI infrastructure and AI apps, robotics & autonomy, decentralized infrastructure, fintech & payments and virtual worlds. We also watch security and digital health.
At what stage?
Pre-seed and seed.
When will I hear back?
Within ten working days: yes, no, or one specific question.
Who reads my pitch?
Both founders, Bogdan Alexandrescu and Emanuel Mazzilli.
What should I send?
The one-line version in the form is enough to start. If you have them, add a deck or a one-page memo, a demo, repo or technical write-up, and the one number that matters this quarter.