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The Venture Codex

Heavybit

523 Octavia St, San Francisco, CA, 94102, United States

Overview

Heavybit is the leading investor in developer-first startups that turn visions into movements, products into platforms, and contributors into communities. Our partnership, team, and community of technical founders and 600+ domain experts have an unequaled track record of nurturing developer-first startups.

Total investments
58
Lead investments
16
Investments · 12mo
10
Active investors
8

Sector focus

  • Artificial Intelligence (AI)
  • Cloud Infrastructure
  • Developer APIs
  • Developer Platform
  • Enterprise Software
  • Information Technology
  • Infrastructure
  • Machine Learning
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Investment portfolio

  • groundcover

    Participated · Series C · Jul 2026

    groundcover is a full-stack observability platform built on a bring-your-own-cloud (BYOC) data plane with an adaptive eBPF sensor and native OpenTelemetry support to capture unsampled, high-fidelity telemetry across infrastructure, application and AI workloads. The platform stores telemetry inside customers' cloud premises with no sampling or cardinality limits and offers an Agent Mode experience to help engineers surface, troubleshoot and remediate issues while enabling agentic/autonomous operations. Since its 2021 founding, groundcover has grown to more than 250 paying customers, tripled ARR over the past year, achieved 3x year-over-year ARR growth and closed multiple seven-figure deals. The company doubled global headcount in the last year and plans to use new funding to scale go-to-market efforts, expand geographically, deepen partnerships with cloud providers and accelerate its AI and product roadmap. Groundcover positions itself as an alternative to legacy observability vendors by targeting the telemetry scale and control needs of AI-era teams.

  • Reo.Dev

    Participated · Series A · Jul 2026

    Reo.Dev is described as an AI sales intelligence company that provides tools and insights for sales teams. The company announced a $11.3 million raise intended to fund expansion into the U.S. Beyond the fundraising and U.S. expansion plans, the article does not provide specifics on products, customers, or financial metrics. No founding year, headquarters location, or historical funding details were disclosed in the coverage. The company's immediate focus, per the announcement, is growing its operations in the U.S.

  • Modiqo

    Led · Seed · May 2026

    Modiqo builds an infrastructure layer for reliable AI agent workflows and has launched a product called Rote that captures successful agent executions and turns them into deterministic, repeatable processes. Rote is intended to make AI work consistently across changing models and APIs, reduce token usage by reusing proven workflows, integrate with existing tools without heavy engineering, and provide visibility into executions and costs. The company positions its offering as an execution layer to help teams move AI projects from experiments to production-grade systems. Modiqo states its target users are organizations deploying AI across real-world operations that need reproducibility, reliability, and cost control. The company announced a $3 million pre-seed raise to support Rote's launch. The press release was issued from San Francisco on May 28, 2026.

  • Duckbill

    Participated · Equity · Feb 2026

    Duckbill began as a specialized cloud-cost consulting firm and is now evolving into a software company. Its flagship product, Skyway, transforms private cloud pricing agreements into structured data so finance and engineering teams can validate discounts and model future expenses across AWS, Google Cloud, and Microsoft Azure. Rather than focusing solely on cost reduction, Skyway emphasizes financial planning and predictability for large, complex cloud footprints, including those driven by fast-growing AI workloads. The newly raised capital will be used to expand Duckbill’s engineering team and accelerate feature development of additional Skyway modules. Co-founders Corey Quinn and CEO Mike Julian leverage years of experience negotiating large-scale cloud contracts to inform the platform’s capabilities. Although the company has not disclosed revenue or user counts, the move from services to software signals an ambition to scale recurring, higher-margin product revenue streams.

  • Musical AI

    Led · Equity · Jan 2026

    Musical AI is an Ottawa-based startup focused on solving attribution and rights management for the generative-AI music ecosystem. Its platform supplies licensed music data for model training, then continuously monitors downstream usage so rightsholders can be identified and paid. The product combines license management with detailed attribution reports, enabling AI developers to remain compliant while giving artists confidence that their work is respected. Generative-AI companies integrate the service to access pre-cleared content and automated royalty calculations. With fresh capital, the company plans to grow headcount, enhance its attribution technology, and pursue landmark industry agreements. The recent $4.5 million raise underpins these product and business-development efforts, but no additional operating metrics have been disclosed.

Team

  • James Lindenbaum

    Part Time Partner

  • Tom Drummond

    Founder & Managing Director

    LinkedIn
  • Joseph Ruscio

    General Partner

    LinkedIn
  • Jesse Robbins

    General Partner

    LinkedIn