PE Firm · Capital Allocator
Heavybit
MediumHeadquarters not yet mapped · Website
Last verified
9/20/2026
Firm Overview
106
Portfolio tracked
0
Sectors
0
Regions
9/20/2026
Last verified
Venture firm investing in developer and enterprise infrastructure companies.
Leadership
Tom Drummond
Managing Director
Tom is the managing director of Heavybit, and has more than 20 years of experience investing in enterprise infrastructure startups and helping them scale operations, finance, and GTM.
Joseph Ruscio
General Partner
Joe uses his many years of experience in academia, startup management, and venture capital to help practitioner-first teams scale their go-to-market strategy and their organizations.
Jesse Robbins
General Partner
Jesse is the co-founder of Chef and Orion Labs, served as Amazon’s original “Master of Disaster,” and holds board positions with Sanity, Mobot, and others.
Dana Oshiro
Part-time Partner
Dana has 15+ years of experience helping technical founders go to market and holds board positions with Yetto and Everfund.
James Lindenbaum
Founding Partner
James is the co-founder of Heroku and Heavybit, and is an astute advisor on developer product design and early GTM.
Amir Zohrenejad
Part-Time Partner
Amir is a serial entrepreneur who co-founded Dataherald and CloudFish, and enjoys helping ambitious early-stage founders navigate go-to-market challenges.
Susie Singh
Chief Financial Officer
Susie is Heavybit's Chief Financial Officer, overseeing funding transactions, audits, reporting, and more.
Andrea Echstenkamper
VP Marketing
Andrea is the VP of Marketing at Heavybit where she consults Heavybit portfolio and member companies and develops the Heavybit brand’s GTM.
Ted Carstensen
Platform Director
Ted manages Heavybit’s platform team and advisor network, facilitating knowledge sharing through various programming and the DevGuild conference series.
Portfolio Companies
| Company | Sector | Status | Website |
|---|---|---|---|
| Anchor | developer-oriented service for encrypting applications and infrastructure | Exited | Visit ↗ |
| Antfly | — | Current | Visit ↗ |
| Apiary | API design, development & documentation | Exited | Visit ↗ |
| Apollo GraphQL | open source tools for GraphQL | Current | Visit ↗ |
| Apportable | mobile app development | Exited | Visit ↗ |
| Aserto | cloud-native authorization as a service | Current | Visit ↗ |
| Avo | next-generation analytics governance tool | Current | Visit ↗ |
| Begin | globally scalable AWS infrastructure | Exited | Visit ↗ |
| BillForward | complex billing simplified | Current | Visit ↗ |
| Blockdaemon | institutional grade blockchain infrastructure | Current | Visit ↗ |
| Brace | web hosting service | Exited | Visit ↗ |
| CircleCI | continuous integration and delivery | Current | Visit ↗ |
| Citus Data | distributed Postgres | Exited | Visit ↗ |
| CloudConnect | cloud-based integration platform | Exited | Visit ↗ |
| Codenvy | cloud workspaces for development teams | Exited | Visit ↗ |
| Contentful | headless content management system | Current | Visit ↗ |
| Continue | Open-source IDE extensions for your own modular AI dev system | Exited | Visit ↗ |
| Convox | deploy and manage applications in the cloud | Exited | Visit ↗ |
| Crunchy Data | open source PostgreSQL for the enterprise | Exited | Visit ↗ |
| Develocity | build automation system | Current | Visit ↗ |
| Divebell | data discovery and monitoring | Exited | Visit ↗ |
| Duckbill | the cloud cost management data platform | Current | Visit ↗ |
| Greta | a P2P distribution network | Current | Visit ↗ |
| Groundcover | Cloud-Native Observability Platform | Current | Visit ↗ |
| Iron.io | message queue and processing platform | Exited | Visit ↗ |
| Jeli | incident analysis company | Exited | Visit ↗ |
| Keen IO | all-in-one solution for event data management | Exited | Visit ↗ |
| Kloudless | SaaS API integration platform | Exited | Visit ↗ |
| Kodowa | integrated development environment | Current | Visit ↗ |
| Kosli | complete, content-addressable history of infrastructure changes | Current | Visit ↗ |
| Kubiya | AI teammates for developer and infrastructure operations | Current | Visit ↗ |
| LaunchDarkly | Feature Flag Management | Current | Visit ↗ |
| Librato | real-time operations analytics | Exited | Visit ↗ |
| Lightstep | the DevOps observability platform | Exited | Visit ↗ |
| LocalStack | cloud app development and testing | Current | Visit ↗ |
| LunchBadger | multicloud platform for microservices and serverless | Current | Visit ↗ |
| Memgraph | Frictionless, Innovative, Graph Applications | Current | Visit ↗ |
| Metrist | performance monitoring solution for 3rd party dependencies | Current | Visit ↗ |
| Milestone | the enterprise AI adoption platform | Current | Visit ↗ |
| Mobot | automated mobile QA on physical devices | Current | Visit ↗ |
| Modiqo | The execution layer for AI agents | Current | Visit ↗ |
| Moesif | API intelligence platform | Exited | Visit ↗ |
| Moonchild | AI-powered front-end engineering and design platform | Current | Visit ↗ |
| Multimodel | secure AI environments for organizations | Current | Visit ↗ |
| Musical AI | attribution for generative media | Current | Visit ↗ |
| Mux | the API for video | Current | Visit ↗ |
| Netlify | the most comprehensive platform for web projects | Current | Visit ↗ |
| NodeSource | the safest and most secure Node.js platform | Exited | Visit ↗ |
| Opsee | monitoring built for AWS | Current | Visit ↗ |
| Orbit | mission control for your community | Exited | Visit ↗ |
| OverOps | static and dynamic code analysis | Exited | Visit ↗ |
| PagerDuty | real-time incidence response | Exited | Visit ↗ |
| Pantheon | website management platform | Current | Visit ↗ |
| Particle | integrated IoT platform | Exited | Visit ↗ |
| PartnerPage | turnkey, custom partner directories | Current | Visit ↗ |
| Pusher | realtime experiences for mobile and web | Exited | Visit ↗ |
| Radar | the leading geofencing platform | Current | Visit ↗ |
| Rainforest QA | the complete QA platform | Current | Visit ↗ |
| ReadMe | professional quality docs | Current | Visit ↗ |
| Reduce | Pre-production data visibility platform | Current | Visit ↗ |
| Reo | Developer intent GTM platform | Current | Visit ↗ |
| Replicate | open-source AI models | Exited | Visit ↗ |
| Replicated | multi-prem software delivery and management | Current | Visit ↗ |
| Runscope | API performance monitoring | Exited | Visit ↗ |
| Sanity | the unified content platform | Current | Visit ↗ |
| Serverless | build and operate serverless architectures | Current | Visit ↗ |
| Shipyard | ephemeral on-demand environments | Current | Visit ↗ |
| Snyk | cloud native application security provider | Current | Visit ↗ |
| Stealth #100 | memory infrastructure so AI agents retain and reuse learned decisions | Current | — |
| Stealth #101 | retrieval engine that automates chunking, embedding, and search for AI agents | Current | — |
| Stealth #102 | router that lets voice AI apps switch between speech and voice-model providers | Current | — |
| Stealth #103 | optimizes AI inference deployments to cut energy cost per token without rewrites | Current | — |
| Stealth #104 | open-source platform for organizing AI agents into structured, governed teams | Current | — |
| Stealth #105 | web search, fetch routing, and observability infrastructure for AI agents | Current | — |
| Stealth #106 | tools for verifiable integrity and determinism in Linux systems | Current | — |
| Stealth #107 | open-source AI agent platform that autonomously pentests applications and APIs | Current | — |
| Stealth #108 | build web pages that humans edit and AI agents can read and write directly | Current | — |
| Stealth #109 | detects and blocks unauthorized resale of stolen LLM API access and tokens | Current | — |
| Stealth #110 | distributed HPC compute clusters for AI and quant-trading workloads | Current | — |
| Stealth #111 | offline AI inference runtimes for edge devices like Jetson and phones | Current | — |
| Stealth #112 | low-latency, voice-cloning text-to-speech models for voice agents | Current | — |
| Stealth #113 | email infrastructure and APIs so AI agents can send and receive email | Current | — |
| Stealth #114 | AI agents that monitor AWS and reduce operational toil for engineering teams | Current | — |
| Stealth #64 | developer-first customer and product analytics | Current | — |
| Stealth #65 | Open-source Rust and WebAssembly library for JavaScript web apps | Current | — |
| Stealth #81 | data intelligence for CROs and RevOps teams via prompting | Current | — |
| Stealth #83 | syncs, searches, and encrypts shell history across machines | Current | — |
| Stealth #87 | describe an app in plain language and get a real one instantly | Current | — |
| Stealth #89 | open-source API for deploying durable, secure AI agents | Current | — |
| Stealth #90 | uses LLMs and formal methods to catch and reduce errors in software code | Current | — |
| Stealth #91 | builds custom AI agents that automate how teams work | Current | — |
| Stealth #92 | RL environments for training frontier models on banking and PE workflows | Current | — |
| Stealth #93 | control plane for usage-based pricing | Current | — |
| Stealth #94 | observability data platform storing logs, traces and metrics | Current | — |
| Stealth #95 | turns how a company runs into rigorous, auditable systems | Current | — |
| Stealth #96 | autonomously watches, investigates and fixes databases | Current | — |
| Stealth #98 | records AI agents and turns proven workflows into team skills | Current | — |
| Stealth #99 | primitives for building end-to-end applications in TypeScript | Current | — |
| Streamfold | high-performance telemetry data management | Exited | Visit ↗ |
| Tailscale | zero config VPN for building secure networks | Current | Visit ↗ |
| Testim | automated functional testing | Exited | Visit ↗ |
| Timekit | automated scheduling | Exited | Visit ↗ |
| Tonic | the fake data company | Current | Visit ↗ |
| TruStar | the first security intelligence exchange platform | Exited | Visit ↗ |
| Unikraft | cloud scaling without limits | Current | Visit ↗ |
| Vibrant Labs | simulation environments for AI agents | Current | Visit ↗ |
Portfolio Web Readiness
Not yet assessed
The assessment covers whether AI crawlers and search engines can reach and parse the public site, page performance, transport and security hygiene, and discoverability. 76 portfolio companies have a website on record.
Observational measurements of these companies' public websites only. Not a rating of the companies, their performance, their management, or their investment merit. Not investment advice. Request a correction or removal via Submit Update.
This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with Heavybit and does not provide investment advice.
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