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AI-assisted office leasing platform
Tandem has raised $38.1M across 2 funding rounds.
Key people at Tandem.
Tandem was founded in 2023 by Sean Miller (Founder) and Brendan Suh (Founder) and Rafi Sands (Founder).
Tandem has raised $38.1M in total across 2 funding rounds.
The pandemic reduced office use nationwide by 50%, and tenants have been left to deal with highly inflexible, long term lease agreements that don’t fit today’s office use patterns.
The traditional brokerage model works great for big spaces and long terms. But when you want to talk smaller units, short term lengths, shared and common areas, you’re out of luck.
Tandem is an AI-enabled office leasing platform. We’re using technology to unlock flexible agreements in quality spaces. Our AI co-pilot enables a white-glove-quality B2B office search experience, with a fraction of the human labor typically required.
Today we’re serving two primary markets : NY & SF, with hundreds of active Hosts in each. We’ve helped match more than 350 companies and have seen double-digit month-over-month growth.
Tandem was founded in 2023 by Sean Miller (Founder) and Brendan Suh (Founder) and Rafi Sands (Founder).
Tandem has raised $38.1M in total across 2 funding rounds.
Tandem's investors include Accel, Headline (formerly e.ventures), QED Investors, Mike Gordon.
Key people at Tandem.
Tandem is an AI-assisted office leasing platform designed to radically simplify and accelerate the traditionally slow and complex office leasing process. It offers a marketplace where companies can list, discover, tour, and lease office spaces with AI-powered workflows that reduce lease transaction times from the typical 3-6 months to 14 days or less. The platform supports flexible lease terms, allowing companies to upsize or downsize with as little as 30 days’ notice, effectively enabling a "long-term Airbnb" experience for office space. Tandem serves primarily tech companies and hybrid teams in major U.S. markets like New York, San Francisco, and Los Angeles, helping over 300 companies find and share office space, with more than $6 million in annual rent processed through the platform[1][2][3].
For an investment firm, Tandem’s mission is to make office leasing fast, flexible, and frictionless by leveraging AI to lower transaction costs and enable flexible, plug-and-play office solutions. Its investment philosophy centers on harnessing technology to disrupt traditional real estate inefficiencies, focusing on sectors like commercial real estate tech and workplace solutions. Tandem’s impact on the startup ecosystem is significant, as it supports the evolving needs of hybrid and remote-first companies by providing flexible office solutions that align with modern work trends[2][3].
For a portfolio company, Tandem builds an AI-powered marketplace platform that serves companies seeking flexible office space and landlords/hosts listing excess space. It solves the problem of lengthy, costly, and inflexible office leasing by automating workflows such as space recommendation, tour scheduling, lease drafting, and rent payments. The company has demonstrated strong growth momentum, rapidly expanding its office listings and customer base since launching in late 2023 and securing $6.1 million in seed funding in early 2025[1][2][3].
Tandem was founded by Rafi Sands and his team, who emerged from Stanford and participated in Y Combinator’s Summer 2024 batch. The idea originated from recognizing the inefficiencies and rigidity in traditional office leasing, especially as companies navigated hybrid work models post-pandemic. Early traction came from launching in key markets like NYC and SF, quickly helping over 100 companies find off-market office spaces and processing over $1 million in rent through the platform within months of launch. The company’s evolution has been marked by a pivot from fractional office space matchmaking to a fully AI-assisted leasing platform, emphasizing automation and trust-building through AI co-pilots that augment brokers’ capabilities[1][3][4][5].
Tandem rides the trend of hybrid work and flexible office usage, which has accelerated since the COVID-19 pandemic reshaped workplace norms. The timing is critical as companies seek agility in office space commitments amid uncertain workforce models. Market forces favor platforms that reduce friction and cost in commercial real estate transactions, especially those leveraging AI to scale personalized services traditionally dependent on human brokers. Tandem’s approach influences the broader ecosystem by demonstrating how AI can enhance trust and efficiency in real estate, a sector historically resistant to digital disruption. It also supports the growing demand for flexible, plug-and-play office environments, helping landlords adapt to new market realities[1][3][5].
Looking ahead, Tandem is poised to expand its geographic footprint beyond NYC, SF, and LA, deepen its AI capabilities, and further streamline the leasing process to become the dominant platform for flexible office space. Trends such as continued hybrid work adoption, demand for shorter lease terms, and the rise of AI in real estate workflows will shape its trajectory. Tandem’s influence may evolve from a marketplace to a comprehensive office space management ecosystem, potentially integrating more services like vendor onboarding and workspace customization. Its success will hinge on maintaining a balance between AI automation and human trust, continuing to lower transaction costs while scaling personalized service[3][5].
Tandem’s vision to make office leasing as easy as booking an Airbnb encapsulates its disruptive potential in transforming commercial real estate for the modern workforce[1][3].
Tandem has raised $38.1M across 2 funding rounds. Most recently, it raised $6.1M Seed in February 2025.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Feb 4, 2025 | $6.1M Seed | ||
| May 1, 2016 | $32.0M Series B | Accel, Headline (formerly e.ventures), QED Investors, Mike Gordon |
