Offstream is the de facto dMRV and compliance platform for biochar project developers in the US. We are backed by Y Combinator, FundersClub, Collab Fund, Ponderosa VC, and strategic angels across the carbon markets ecosystem. Unlike tools that only engage once a project is operating, Offstream supports developers across the full project lifecycle: feasibility and opportunity assessment, credit origination, and maintaining ongoing credit flow. We work with 50+ projects under development or in operation today, and are a trusted partner of major registries, such as Isometric, Puro.earth, and Rainbow.
Offstream was founded by Varsha Walsh and Zach Janicki.
Varsha (CEO) has spent her career at the intersection of carbon markets and project development, working as a developer, broker, and buyer before founding Offstream. Prior to Offstream, she held roles at Indigo Ag and Patch, where she built deep expertise in voluntary carbon markets, biochar and biomass crediting methodologies, dMRV infrastructure, and lifecycle assessment. She experienced the compliance and MRV pain point firsthand across every seat at the table, and built Offstream to solve it. Varsha holds an MBA from Harvard Business School.
Zach (CTO) has spent his career building software at early-stage startups, most recently as the first engineer at Repool (YC S21), where he built a product from the ground up that reached $1M in ARR. He has deep experience in regulatory-heavy spaces including finance and insurance, and knows how to build greenfield products that scale with a rapidly growing company.
At Offstream we care deeply about the impact we are making on the planet and want our work to encapsulate a successful business and make a meaningful dent in the climate crisis. We work at the intersection of climate x capitalism.
Our culture is anchored around:
Offstream is based in Denver, CO and we have a hybrid workplace, where we’re in the office 3 days a week.