Heavybit
AcceleratorActively deployingSan Francisco · Pre-Seed–Series A · 16 people tracked
Also known as HEAVYBIT, LLC
Investment thesis
Heavybit focuses on developer-focused companies and developer tool businesses, offering bespoke, hands-on support rather than a one-size-fits-all approach. The firm draws on experience across many developer tool businesses to help founders navigate the specific challenges of building developer-oriented and enterprise offerings, including creating new developer categories from scratch. Beyond capital, Heavybit provides a program, platform, and a community of advisors and fellow founders that founders can lean on throughout their scaling journey.
Source: firm website, verified Aug 7, 2026.
Team · 16 people
from the firm's website
What they invest in
from 11 of 25 portfolio companiesAI & Machine Learning ×8Developer Tools ×8Enterprise Software ×7SaaS ×6Data & Infrastructure ×4Cloud Computing ×3Cybersecurity ×1Fintech ×1
HQs:United States×11United Kingdom×1Croatia×1Iceland×1
Portfolio companies · 25 tracked
alumni founders can tell you what the program is really like
Billforward is a subscription billing and recurring revenue platform that enables businesses to manage customer sign-ups, payment collection, and subscription management.
Enterprise SoftwareFintechSaaSSan Francisco, US
Ian Saunders(Founder/CEO)inMark Parry(Founder)inAubone Tennant(Founder/Chief Growth Officer)in
Brooklyn, US
Jesse Robbins(Director)Larry Wayne Diehl, Jr.(Executive Officer, Director)
Board seatJesse Robbins· per SEC Form D · $2.7M raise · filed Sep 2025
Bengaluru
Krishna Mehra(Director)Piyush Agarwal(Director)Achintya Gupta(Executive Officer, Director)Gaurav Jain(Director)
Board seatJoseph Ruscio· per SEC Form D · $11.3M raise · filed Jun 2026
San Francisco, US
Raman Kapur(Executive Officer)Doug Pepper(Director)Magnus Hillestad(Executive Officer, Director)Joakim Dal(Director)Jesse Robbins(Director)Simen Svale Skogsrud(Director)
Board seatJesse Robbins· per SEC Form D
Wilmington, US
Joseph Ruscio(Director)Vanessa Gennarelli(Director, Founder, Chief Operating Officer)Mike McQuaid(Director, Founder, Chief Technology Officer)John Britton(CEO, Director, Founder)
Board seatJoseph Ruscio· per SEC Form D · $3.2M raise · filed Nov 2023
Palo Alto, US
Joshua N. Kalderimis(Executive Officer, Director)Joseph Ruscio(Director)Richard Konstantin Haase(Executive Officer, Director)
Board seatJoseph Ruscio· per SEC Form D · $3.7M raise · filed Feb 2022
San Francisco, US
Michael Julian(Executive Officer, Director)Andrew McLoughlin(Director)Corey Quinn(Director)Daniel Shapiro(Executive Officer)
Board seatJoseph Ruscio· per SEC Form D · $6M raise · filed Dec 2025
Blacksburg, US
Board seatJoseph Ruscio· per SEC Form D · $3.2M raise · filed Nov 2022
Developer-first customer and product analytics platform
LaunchDarkly provides a feature management platform that enables development teams to release code changes safely through feature flags, detect production issues in real time, and run experiments without redeploying applications.
AI & Machine LearningCloud ComputingDeveloper ToolsSaaS
Edith Harbaugh(Founder & CEO)
Mobot provides infrastructure-as-a-service that combines human expertise with mechanical robots to automate testing and development processes for engineering teams building software and hardware products.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareHardwareRoboticsSaaSNew York City, US
Eden Full Goh(Founder)in
Netlify is a platform for building, deploying, and scaling modern web applications, serving millions of developers and thousands of enterprises.
AI & Machine LearningCloud ComputingDeveloper ToolsSaaSSan Francisco, US
Mathias Biilmann(Co-founder & CEO)Christian Bach(Co-founder, Chief Strategy and Creative Officer)
Replicate builds tools that make AI models accessible to software engineers through simple APIs and abstractions, similar to standard software libraries.
AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US
Ben Firshman(Founder)inAndreas Jansson(Founder)inMATT BORNSTEIN(Director)
Stealth secure software delivery platform
Snyk is a developer-focused security platform that identifies and fixes vulnerabilities in code, dependencies, containers, and cloud infrastructure using AI-powered analysis.
AI & Machine LearningCybersecurityDeveloper ToolsBoston, US
Stack Internal is a knowledge management platform that captures, structures, and validates enterprise knowledge to provide trusted context for AI agents and human teams.
AI & Machine LearningDeveloper ToolsEnterprise Software
Developer-first customer and product analytics
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Frequently asked questions
- What stage does Heavybit invest at?
- Heavybit invests at the Pre-Seed, Seed, Series A stages.
- What is Heavybit's typical check size?
- Heavybit typically writes checks of $500K – $5M.
- What sectors does Heavybit focus on?
- Heavybit focuses on AI & Machine Learning, Cloud Computing, Cybersecurity, Data & Infrastructure, Developer Tools, Enterprise Software, SaaS.
- Where is Heavybit located?
- Heavybit is headquartered in San Francisco, US.
- Does Heavybit lead rounds?
- Yes, Heavybit leads investment rounds.
From the blog
visit blog ↗Heavybit recently covered developer marketing shifts toward LLM visibility optimization and positioning strategy, as well as AI-assisted performance engineering with human oversight in software systems. AI summary
Media · Podcasts & interviews
featuring the teamVenture Confidential - Ep. #4, Feat. Heavybit's Tom Drummond - YouTube
Heavybit · Tom Drummond
Heavybit's James Lindenbaum on Developer Company Trends - YouTube
Heavybit · James Lindenbaum
Zero to Won - Ep. #4, Feat. Heavybit’s James Lindenbaum - YouTube
Heavybit · James Lindenbaum
Talk / interview
Jesse Robbins
Images
Co-investors · 76
Andreessen Horowitz's Strategic Partnerships page describes collaborations that connect its portfolio companies with established institutions to help scale and deploy their technology.
General Catalyst is a venture capital and investment firm that backs founders across industries, with a strong focus on AI-driven transformation, fintech, healthcare, and other sectors.
Founders Fund is a venture capital firm that invests in technology companies across sectors, backing companies such as Anduril and Palantir.
Lightspeed Venture Partners is a global venture capital firm known for backing AI and technology founders, emphasizing deep, hands-on partnerships with the companies it funds.
Accel is a venture capital firm that partners with exceptional founding teams, positioning itself as a first partner to startups globally.
Redpoint Ventures is a venture capital firm established in 1999 by former partners from leading venture firms, focusing on early-stage technology companies across multiple sectors. The firm leverages its partners' technology investment experience and an extensive network of entrepreneurs and industry contacts to support portfolio company growth.
Uncork Capital is a seed-stage venture firm that backs founders at the earliest stage, before their potential is widely recognized.
Insight Partners is a software-focused investment firm that provides capital and operational support to companies from early to late stage, backed by its in-house Insight Onsite operating team.
Felicis Ventures is an early-stage venture capital firm that has backed founders for over 20 years, leading or co-leading the majority of its investments across seed and Series A rounds.
Uber is a technology company operating multisided platforms that connect consumers with ride services, transit, delivery of food and groceries, and freight shipping across more than 70 countries and 15,000+ cities.
Coatue Management is a technology-focused investment firm that invests across both public and private markets, with an active private portfolio of over 250 tech companies.
True Ventures is an early-stage venture capital firm that writes the first check for founders and supports them through subsequent stages of growth.
▶64 more co-investors
CRV (Charles River Ventures)Battery VenturesEniac VenturesPartech VenturesHardware ClubAME Cloud VenturesSignalFireScale Venture PartnersObvious VenturesAdditionAmplify PartnersNext47Ridge VenturesHarrison MetalIntel CapitalTwo Sigma VenturesAccompliceThreshold VenturesGaingelsTSVCChemistryCostanoa VenturesFuel Venture CapitalOperator Collective7percent Venturesboldstart venturesAugust CapitalComcast Ventures468 CapitalICONIQ CapitalPoint72 VenturesSpider CapitalLead Edge CapitalThird Point VenturesUpside PartnershipAnorak VenturesBaruch Future VenturesStorm VenturesPreston-Werner VenturesBlue Owl CapitalBDC Venture CapitalBloomberg BetaThomvest VenturesTenOneTen VenturesLombardstreet VenturesAngular VenturesTrust FundH.I.G. Growth PartnersEngineering CapitalRembrandt Venture PartnersCerity Partners VenturesEssence Venture CapitalCervinInvariantes FundMPG FundTop Tier Capital PartnersMyAsiaVCCross Culture VenturesEvolution VC PartnersGenoa VenturesNorth Bridge Venture Partners & Growth EquityMetalayerHelios Climate VenturesTest Kitchen Capital
Firms observed investing alongside Heavybit, from public investor directories.
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