Who founded GreenTally?

GreenTally was founded by Yulong Liu, Daiyi Yang in 2023.

Who are GreenTally's investors?

GreenTally's investors include Felicis Ventures, Nimble Partners, Y Combinator, Assurant Ventures.

Where is GreenTally headquartered?

GreenTally is headquartered in San Francisco, US.

GreenTally

DefunctYC S23

San Francisco, US · Founded 2023 · 2 employees · 4 known investors

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Greentally is a carbon footprint platform that combines software with expert support to help businesses track and manage emissions, including supply chain (Scope 3) data. It serves SMEs to large enterprises seeking to meet sustainability and regulatory requirements.

Also known as DSensei, Inc. · DSensei · Empower · LogUnify · LogUnify, DSensei, Empower

AI & Machine Learning Climate Tech Enterprise Software SaaS Artificial Intelligence Generative AI Machine Learning AIUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (S23)

GreenTally was founded in 2023 by Yulong Liu and Daiyi Yang.

Yulong Liu Co-Founder2023–2025Yulong Liu previously served as a machine learning engineering manager at Snap and a senior software engineer at Google Research before becoming co-founder of GreenTally.

Daiyi Yang Founderuntil 2025Daiyi Yang was director of engineering at Revinate, overseeing product development and infrastructure, before joining Meta as a technical lead across Lead Ads, News Feed Experience, and Metaverse Avatar. She is now co-founder at GreenTally.

Investors · 4

Felicis Ventureslisted by Felicis VenturesSan Francisco · $500K – $15M

How we know: Felicis Ventures's portfolio page · Not right? Tell us

Nimble Partnerslisted by Nimble PartnersSan Francisco

How we know: Nimble Partners's portfolio page · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us

Assurant VenturesreportedAtlanta · $250K – $3M

How we know: Y Combinator's founder network · Not right? Tell us

Related companies · 10

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BoundaryBoundary develops BAML, a programming language designed for building AI agents and integrating large language models into applications. The language includes native testing and observability tools for structured LLM outputs, tool calling, and parallel LLM execution, and can be used alongside other programming languages to standardize AI component development.

PersefoniPersefoni provides carbon accounting and climate training tools for portfolio company engagement. The platform offers technical support through Persefoni Copilot and educational resources via Persefoni Academy, both included in its Pro subscription for suppliers and portfolio companies.

FiniFini provides AI agents for enterprise customer support that resolve support tickets automatically across multiple languages without requiring code. The platform targets enterprises seeking to reduce support costs.

HumanloopHumanloop was a development platform for building and managing large language model applications, providing tools for evaluating and managing AI systems.

FlexidaoFlexiDAO provides data, software, and advisory services for managing, trading, and reporting on renewable energy portfolios, helping customers assess climate-related risks and pursue carbon-aware procurement. It serves clients across Europe, the US, and the APAC region in the clean energy sector.

KashikoiKashikoi is an AI evaluation platform that simulates real-world interactions to autonomously assess AI agents without requiring code. The platform helps developers benchmark and optimize AI agents across various task types before deployment.

SweepSweep builds software that helps large companies and financial institutions manage sustainability and non-financial (ESG) data, track carbon across value chains, and comply with climate disclosure regulations. The company serves enterprises and financial institutions globally.

The Climate ChoiceClimateChoice aggregates fragmented supplier climate disclosures — from sustainability reports, product carbon footprints, and public sources — into a structured, comparable dataset for Scope 3 benchmarking, scoring, and sourcing decisions. It serves procurement and climate/sustainability teams managing supplier emissions without issuing new supplier surveys.

MeasurablMeasurabl is a sustainability data platform for real estate organizations that enables measurement, management, and reporting of environmental performance across buildings and properties. The platform serves real estate companies to drive asset value, lower capital costs, and manage physical climate risk exposure.

Companies working in the same space as GreenTally.

Legal entities · 1

corporate structure

DSensei, Inc.

Frequently asked questions

What does GreenTally do?: Greentally is a carbon footprint platform that combines software with expert support to help businesses track and manage emissions, including supply chain (Scope 3) data. It serves SMEs to large enterprises seeking to meet sustainability and regulatory requirements.
Who founded GreenTally?: GreenTally was founded by Yulong Liu, Daiyi Yang in 2023.
Who are GreenTally's investors?: GreenTally's investors include Felicis Ventures, Nimble Partners, Y Combinator, Assurant Ventures.
Where is GreenTally headquartered?: GreenTally is headquartered in San Francisco, US.