Tandem
YC S24San Francisco, US · Founded 2023 · 22 employees · Hiring · 36 known investors
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Tandem is a marketplace that simplifies commercial office space search for companies by consolidating market access, verified pricing and availability, and expert negotiation support in one platform. The company aims to replace the traditional fragmented brokerage process with transparent, faster office search and relocation services.
Also known as Inc. · Tandem Space · Tandem Space, Inc.
Founders & leadership· Y Combinator alumni (S24)
Tandem was founded in 2023 by Rafi Sands, Sean Miller, Brendan Suh, Ben Lowenstein, and Christophe Barre.




Investors · 36
How we know: J4 Ventures's portfolio page · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
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How we know: Y Combinator's founder network · pioneerfund.vc · Not right? Tell us
How we know: Y Combinator's founder network · rebelfund.vc · Not right? Tell us
How we know: Y Combinator's founder network · somacap.com · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
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How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news feeds · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news · press coverage · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: funding news feeds · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: funding news feeds · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
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Founder mafia
4 people who came through Tandem went on to found or lead other companies.
Related companies · 10
Companies working in the same space as Tandem.
Legal entities · 1
corporate structureFrequently asked questions
- What does Tandem do?
- Tandem is a marketplace that simplifies commercial office space search for companies by consolidating market access, verified pricing and availability, and expert negotiation support in one platform. The company aims to replace the traditional fragmented brokerage process with transparent, faster office search and relocation services.
- Who founded Tandem?
- Tandem was founded by Rafi Sands, Sean Miller, Brendan Suh, Ben Lowenstein, Christophe Barre in 2023.
- Who are Tandem's investors?
- Tandem's investors include J4 Ventures, Maiora Rebel Ventures, Pioneer, Rebel Fund, Soma Capital, The 23 Fund, The MBA Fund, Y Combinator and 28 more.
- Where is Tandem headquartered?
- Tandem is headquartered in San Francisco, US.













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