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Square One Labs is a venture capital organization founded by entrepreneurs from SolarEdge in 2024. Based in Israel, the firm focuses on building and investing in deep-tech companies, particularly in the fields of Energy and Physical AI. The organization aims to support founders from the inception of their companies, providing resources and expertise to help them navigate the early stages of development.
Square One Labs operates with a fund size of $30 million and has a dual-track model that includes a traditional VC fund for early-stage companies and a Build program that nurtures startups from the idea stage to independent ventures. This unique approach allows them to back founders from the very beginning, including pre-company ideation, ensuring that they have the necessary support to succeed.
The firm has established partnerships with notable entities such as the Israel Innovation Authority and Doral Energy-Tech Ventures, which contribute to its strong foundation and operational capabilities. Square One Labs is committed to fostering innovation in energy and AI sectors, positioning itself as a key player in the global startup funding ecosystem.
Square One Labs invests primarily in early-stage companies at the pre-seed and seed stages, with a strong emphasis on technologies that drive advancements in energy and Physical AI. Their investment focus encompasses a variety of sectors, including:
Square One Labs is particularly interested in startups that demonstrate potential for significant impact in these sectors. Their investment strategy is designed to identify and support groundbreaking technologies that can transform industries and improve energy systems globally. The firm’s dual-track model allows them to provide comprehensive support to founders, ensuring that they have the resources needed to develop their ideas into viable businesses.
Square One Labs has a focused portfolio that includes innovative startups in the energy sector. One notable company is:
While the firm has not publicly disclosed an exhaustive list of its portfolio companies, its commitment to investing in deep-tech innovations is evident. The firm’s Build program also plays a crucial role in creating new companies from the ground up, further expanding its portfolio with startups that emerge from their incubation process.
Amir Fishelov - Co-Founder and Managing Partner. Amir has a background as a co-founder of SolarEdge, bringing extensive experience in the energy sector and deep-tech innovations.
Yoav Galin - Co-Founder and CTO. Yoav also has a history with SolarEdge, contributing his technical expertise to the firm’s investment strategy.
Jonathan Bik - Co-Founder and Managing Partner. Jonathan plays a key role in shaping the firm’s vision and investment approach, leveraging his experience in venture capital.
Mike Cheifetz - Partner. Mike brings additional expertise to the team, focusing on identifying and supporting promising startups in the energy and technology sectors.
To pitch to Square One Labs, founders should utilize the preferred channel available on their website at s1l.vc. It is advisable to include a clear and concise deck that outlines the startup’s vision, technology, market potential, and team background. While specific application forms are not mentioned, a well-structured pitch deck is essential.
Founders can expect a response time that varies based on the volume of applications, but it is recommended to follow up if no communication is received within a reasonable timeframe. Warm introductions may enhance the chances of getting noticed, particularly from individuals within the firm’s network.
Square One Labs operates a Build program designed to nurture startups from the idea stage to independent ventures. This program provides comprehensive support, including mentorship and resources, to help founders successfully launch their companies.
As of April 2026, Square One Labs has been actively involved in the deep-tech startup scene, particularly in energy and AI sectors. The firm continues to expand its portfolio through its Build program, which creates new companies from the idea stage.
Recent coverage includes features in Calcalist/CTech regarding the announcement of the firm’s founding by SolarEdge entrepreneurs. Additionally, Square One Labs has been recognized by the Israel Innovation Authority as an official incubator, highlighting its role in fostering innovation.
Square One Labs has also been mentioned in various reports and podcasts, including a notable appearance by Amir Fishelov on The Spiro Circle, discussing the firm’s investment thesis and approach to supporting deep-tech startups.
What are Square One Labs' investment criteria?
Square One Labs focuses on early-stage companies in the pre-seed and seed stages, particularly in the sectors of energy, industrial innovations, and robotics. They look for technologies that can significantly impact these fields, especially those related to advanced semiconductors, energy generation, and automation.
How can founders apply or pitch to Square One Labs?
Founders interested in pitching to Square One Labs can visit their website at s1l.vc. The firm does not provide specific email contact information, but the website serves as the primary channel for applications.
What makes Square One Labs different from other venture capital firms?
Square One Labs distinguishes itself through its dual-track model, which combines a traditional VC fund with a Build program. This allows them to support startups from the ideation phase through to becoming independent ventures, providing comprehensive resources and mentorship throughout the process.
What is the geographic scope of Square One Labs' investments?
While Square One Labs is based in Israel, they have a global investment focus. They aim to support deep-tech innovations that can have a worldwide impact, particularly in the energy and AI sectors.
What is the typical check size for investments?
Specific check size ranges have not been publicly disclosed, but Square One Labs primarily invests in early-stage companies, which typically involves smaller initial investments compared to later-stage funding rounds.
What kind of post-investment involvement can founders expect?
Square One Labs provides extensive support to its portfolio companies through its Build program, which includes mentorship, operational support, and resources to help startups grow and succeed in their respective markets.
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