sidewalk-labs
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Jonathan Winer
Jonathan Winer is the co-founder and co-CEO of Sidewalk Infrastructure Partners (SIP), a New York-based firm that applies technology to physical infrastructure like power grids, roads, water and digital systems. Backed by Alphabet, Ontario Teachers' Pension Plan and StepStone, SIP has raised close to $1 billion and incubates operating companies such as virtual power plant Renew Home and grid-flexible data center developer Verrus. Before SIP, Winer ran investments for Alphabet's urban innovation platform Sidewalk Labs, founded the Asian clean-energy fund Nereus, and helped build the private equity business at the D. E. Shaw group. He is known for thematic, first-principles investing in what he calls the 'missing middle' between venture capital and traditional infrastructure.
Taylor Lint
Taylor Lint is the founder and CEO of Swantide, a San Francisco company building an AI infrastructure layer for Salesforce and the broader go-to-market tech stack. An engineer by training, she led the launch of LinkedIn's Talent Insights product and ran engineering and product at Replica, the analytics company spun out of Alphabet's Sidewalk Labs, before starting Swantide in 2020. Her company raised a $7M seed round led by Menlo Ventures and now powers Salesforce work for fast-growing software companies and large service partners like Perficient.
Brian Barlow
Brian Barlow is the co-founder and co-CEO of Sidewalk Infrastructure Partners (SIP), the Alphabet spinout that owns, operates, and invests in next-generation energy, mobility, water, and digital infrastructure. He brings three decades of private equity, venture capital, and infrastructure investing - including a stint inside Alphabet's Sidewalk Labs and an early seat at Michael Burry's Scion Capital - to the question of how to fund and build the infrastructure cities actually need. SIP launched in 2020 with a $400 million backing from Google and has since seeded ventures like Renew Home and AMP Robotics.
Sidewalk Infrastructure Partners (SIP)
Sidewalk Infrastructure Partners (SIP) is an infrastructure developer and holding company that builds and operates businesses reshaping how energy and digital systems work together. Founded inside Alphabet in 2017 and spun out as independent in 2019 by Sidewalk Labs veterans Jonathan Winer and Brian Barlow, SIP raised $400 million in 2020 backed by Alphabet and the Ontario Teachers' Pension Plan. It identifies bottlenecks in physical infrastructure, then pairs technology with capital to create new operating companies - most recently Renew Home, a roughly one-gigawatt residential virtual power plant, and Verrus, which designs large-scale data centers that flex their grid draw on demand.
Sam Gerstenzang
Sam Gerstenzang is the co-founder and CEO of Meadow Memorials, a software-enabled funeral and cremation company he started in 2024 after arranging his grandfather's funeral and finding the experience opaque, overwhelming and impersonal. Meadow runs funerals at chapels, beaches, theaters and restaurants instead of traditional funeral homes, with transparent pricing and what Sam calls 'unreasonable hospitality.' Before Meadow he led consumer payments product at Stripe, invested at Andreessen Horowitz, incubated companies at Sidewalk Labs, was early at Imgur, and co-founded Umbrella (acquired by IAC/Angi) and the medspa platform Moxie. In March 2026 Meadow raised a $9M Series A led by Lachy Groom and Haystack.