Joe Greenstein

Partner

10 past transactions

Elm AI (Formerly Esger)

Seed Round in 2025
Elm AI's patent-pending software helps companies assess the environmental and social impact of their supply chains

Bayou Energy

Pre Seed Round in 2024
Bayou Energy offers a software platform that streamlines electricity billing and usage data management for clean energy startups. It automates customer interactions with utility web portals, providing clients with accurate data via API or CSV files, allowing them to focus on core business operations.

Momentum

Seed Round in 2024
Momentum is a behavioral-driven fundraising platform founded in 2018 and headquartered in Oakland, California. It enables users to make automatic donations that turn everyday activities into opportunities for charitable giving. By allowing individuals to set predefined giving rules, the platform facilitates donations to a selection of trustworthy nonprofit organizations aligned with users' interests, such as adding a percentage to their restaurant bills to support those in need. Momentum focuses on donor stewardship and impact tracking, ensuring that users can easily contribute to meaningful causes while managing their day-to-day tasks. The company emphasizes evidence-based charity recommendations to maximize the effectiveness of donations.

Monterra

Pre Seed Round in 2023
Monterra develops software for electric vehicle charging installers. Their platform streamlines project design and planning, enabling contractors to expedite site walks, generate virtual quotes swiftly, and automatically create customer-ready sales proposals.

Studdy

Pre Seed Round in 2023
Studdy is a tutoring platform leveraging artificial intelligence to help students grasp diverse subjects within the school curriculum. The platform operates as a multilingual tutor that uses AI, as well as advanced speech, text, and image recognition technology to enhance students' ability to learn new subjects.

Tempo

Seed Round in 2023
Tempo makes ebike ownership easy. Tempo members use the Tempo app to access essential services for their electric bikes, like theft protection, roadside pickup, repair assistance, and insurance.

Cubist

Seed Round in 2023
Cubist offers a web3 key management platform and modular toolkit that enables developers to safely design, test, and deploy multi-chain and cross-chain decentralized applications in automated pipelines. By handling keys and sequencing, the solution supports secure cross-chain deployments from a single program.

Shield

Seed Round in 2023
Shield is a B2B crypto on/off ramp that enables businesses to accept cryptocurrency payments while receiving USD wires directly into their bank accounts. Licensed as both a Virtual Asset Service Provider (VASP) and Money Services Business (MSB), Shield ensures secure and compliant transactions.

Daylight

Seed Round in 2022
Daylight is a company that provides on-chain transaction infrastructure and a transaction recommendation API for applications, protocols, and creators in the cryptocurrency ecosystem. It offers an on-chain transaction platform designed to enable seamless interactions, with capabilities including wallet integration, support for mints and airdrops, and access to a broad user base across multiple applications. The platform aims to help developers and blockchain businesses improve user engagement, increase transaction volume, and effectively reach target audiences through established channels.

Holly Health

Seed Round in 2022
Holly Health is a digital platform that translates health intentions into daily actions to support mental and physical wellbeing. The service delivers personalized habit coaching, chronic-condition support, and mental health resources through an AI-powered system designed to emulate a human health coach. It has been recognized by ORCHA as a top health app for weight management, stress reduction, wellness, and sleep. Since its international launch in summer 2021, Holly Health has pursued broad adoption and partnerships with primary care practices in the UK, numbering over 100 to date, with a mission to reach millions of users. The platform operates directly with individuals and through integration into primary care settings to help users sustain healthier behaviours and improve overall wellbeing.
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