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Heavybit

San Francisco, California · Invests in US; Europe; Asia; North America; LATAM; MENA · Website

Check size

$500K-$5M

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Pre-SeedSeedSeries AB2B SaaSAI & Machine LearningDeveloper ToolsCybersecurityEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity

Thesis

Heavybit invests in unique founders with transformative visions who are redefining how teams build, deploy, secure, and scale enterprise software. They back founders from Day 0, before the broader market recognizes their potential.

Likely not a fit for

Consumer-focused companies, pure gaming or media, commodity infrastructure plays, companies not seeking hands-on support

How they invest

Lead or follow
Usually leads
Typical decision
~1 month
Warm intro
Not required
Involvement
Takes a board seat
Fund status
Actively deploying
Assets under mgmt
$180M
Decision process
Partnership vote

Partners & team

6 contacts on file

JR

Jesse Robbins

General Partner · Primary contact

JL

James Lindenbaum

Founding Partner

TD

Tom Drummond

Managing Director

JR

Joseph Ruscio

General Partner

DO

Dana Oshiro

Part-Time Partner

AZ

Amir Zohrenejad

Part-Time Partner

Portfolio

SnykSecurity Cyber

Snyk provides an AI-driven security platform that helps developers secure their code, manage vulnerabilities in open source dependencies, and protect containerized applications throughout the software development lifecycle.

LaunchDarklyEnterprise Software

LaunchDarkly is a leader in feature management, providing a scalable platform that allows development teams to innovate faster by transforming how software is delivered to customers. The platform enables gradual release of new software features to any segment of users on any platform, facilitating safe releases at scale.

NetlifyEnterprise Software

Netlify is the most popular way to build, deploy and scale modern web applications. Home to millions of developers and thousands of enterprises, Netlify is the platform of choice for running modern composable web applications in production, from global corporate sites to complex e-commerce and SaaS applications.

CircleCIDeveloper Tools Infra

CircleCI is a continuous integration and continuous delivery platform that automates software delivery processes, enabling developers to build, test, and deploy applications efficiently.

TailscaleEnterprise Software

Tailscale is a mesh VPN service known for its easy setup and secure connectivity, developed by former Google engineers. It provides zero-configuration virtual private networks (VPNs) for secure connectivity and operates a partially open-source software-defined mesh VPN.

LocalstackDeveloper Tools Infra

LocalStack replicates fully functional cloud applications on local infrastructure so you can build freely without the complexity and delays of traditional cloud development.

SanityEnterprise Software

Sanity is a programmable platform that lets developers build custom content workflows and applications while giving teams a unified system for all digital experiences. It provides a flexible headless CMS, real-time content database, and AI-powered automation tools.

PagerDutyEnterprise Software

PagerDuty is an AI-first operations platform that provides end-to-end orchestration for incident management, automation, and AI-driven operations.

StripeFintech Payments

Stripe builds programmable financial services. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities.

Crunchy DataEnterprise Software

Crunchy Data provides fully-managed cloud Postgres solutions, including Crunchy Bridge and Crunchy Postgres for Kubernetes, aimed at enhancing PostgreSQL capabilities for various industries.

Contentful

Contentful is a content infrastructure platform that enables organizations to deliver intelligent experiences from a single source. It provides tools for personalization, analytics, and automation to streamline content workflows, allowing businesses to create highly personalized experiences at scale.

MuxEnterprise Software

Mux helps teams ship high-performance and cost-effective video in minutes, not months. Build better video into anything from websites to platforms to AI workflows.

Recent activity

Heavybit in the news

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Research briefRead more
Heavybit Research Document Investment Thesis Heavybit is the leading early-stage investor in enterprise infrastructure, with an unrivaled track record of helping technical founders achieve breakout success since 2013. The firm believes in backing unique founders with transformative visions who are redefining how teams build, deploy, secure, and scale enterprise software. They invest from Day 0 with high conviction, committing to founders before the broader market recognizes their potential. The fund operates with a philosophy of "a different dollar" - they don't invest in every technical startup, but instead commit deeply to unique founders with unique ideas. Their approach combines capital with comprehensive, hands-on operational support through an extensive network of advisors and fellow founders. Investment Focus & Categories Heavybit invests in category-defining enterprise infrastructure companies across multiple segments: Developer Tools & Infrastructure : CI/CD platforms, container orchestration, deployment tools DevSecOps : Security-focused infrastructure tools, vulnerability management Feature Flagging & Configuration : Feature management and progressive deployment platforms Cloud-Native Infrastructure : Kubernetes tools, serverless platforms, microservices Observability & Monitoring : Application performance monitoring, distributed tracing, logging Open Source Infrastructure : Business models built on open source projects Enterprise Databases : PostgreSQL-based solutions, data infrastructure AI/ML Infrastructure : AI agents for development, code generation, LLM tooling Developer Experience Tools : IDE extensions, documentation platforms, API management Stage & Check Size Investment Stages: Pre-Seed : $500K-$1M Seed : $1M-$3M Series A : $3M-$5M Heavybit typically invests across Pre-Seed through Series A, with a primary focus on Pre-Seed and Seed rounds. They prefer to lead or co-lead Pre-Seed and Seed investments. They maintain a small, concentrated portfolio to provide in-depth support. Total Investment Capacity: Fund V (most recent): Part of $180M+ raised in July 2025 across two funds Fund size enables significant follow-on reserves (approximately 50% for reserve investments) Recent Activity & Fund Status Fund Status: Actively deploying from Fund V (flagship) and Fund II (opportunity fund) Recent Notable Investments (2025-2026): November 2025: Led $10M seed in Milestone (enterprise AI adoption platform) alongside Hanaco Ventures Multiple portfolio additions across infrastructure categories throughout 2025 Fund V closed July 2025 with $180M+ total (combined with opportunity fund) Portfolio Scale: 90+ startups launched (as of latest data) Portfolio companies include some of the most successful infrastructure companies: Snyk, LaunchDarkly, Netlify, CircleCI, Tailscale, Localstack, Sanity, PagerDuty, Stripe Notable exits: Several portfolio companies have achieved IPO or acquisition milestones Strong geographic diversity: portfolio companies in 47 cities across 15 countries Leadership & Team Partners (Investment): Tom Drummond - Managing Director (20+ years in enterprise infrastructure investment) Joseph Ruscio - General Partner (background in academia, startup management, and venture capital) Jesse Robbins - General Partner (co-founder of Chef, first chair of O'Reilly's Velocity) Dana Oshiro - Part-Time Partner (15+ years helping technical founders go to market) James Lindenbaum - Founding Partner (co-founder of Heroku and Heavybit) Amir Zohrenejad - Part-Time Partner (co-founder of Dataherald and CloudFish) Founder & Company Preferences Founder Preferences: Technical founders with shipping track records Founders with unique visions and strong conviction Founders who want hands-on operational support Teams that are developer-first and can articulate technical differentiation Company Characteristics: Unique, transformative vision Category-defining potential B2B focus with enterprise GTM trajectory Developer or engineering team as primary user Strong technical founding team Support Model & Value-Add Hands-On Support Includes: Twice-monthly minimum partner office hours Goal setting and milestone planning Board representation and management Tailored advisor introductions from 1,000+ domain experts Access to exclusive founder community Community Resources: 140+ technical founders in portfolio Private founder Slack with Q&A and intel sharing 6-8 annual in-person founder events Founder-to-founder introductions for learning and partnerships Customer discovery support through alumni network Educational Support: 1,400+ resources in Heavybit library Monthly speaker series on sales, marketing, product design DevGuild twice-yearly conference for portfolio founder CEOs Podcast network support and distribution Content strategy and editorial guidance Geographic Focus Primary Markets: US (especially San Francisco Bay Area, but nationwide) Western Europe Japan and South Korea (for AI/ML and developer tools) Emerging focus in Asia-Pacific regions Portfolio Distribution: 47 cities across 15 countries Historical Context & Authority Founded: 2013 Track Record: Established authority on early-stage infrastructure investment Key Milestone: Named pioneers of the DevOps movement through Jesse Robbins' Velocity Conference Category Recognition: Earliest investors in DevSecOps, CI/CD, JAMstack, serverless, feature flagging, and AI code generation Founder Network: Built a robust ecosystem of 1,000+ advisors and 140+ portfolio founders Thought Leadership: Extensive content library, podcast network, and conference programming

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