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Tandem

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Tandem

AI-native office leasing agent

tandem.space
11-50
B2B

Company research

Public company, workplace, funding, and market signals

Overview

Tandem is a Y Combinator-backed, AI-native office leasing marketplace/brokerage that helps startups and growing teams find, tour, negotiate, and move into office space faster. It aggregates on-market, broker-listed, and off-market offices, and positions itself as a tenant-friendly, landlord-paid alternative to traditional brokerage.

Primary product

AI-native office leasing marketplace and brokerage

Founded

2023

Headquarters

San Francisco, California, United States

Team size

11-50

Work style

Hybrid

Industry

Technology, Information and Internet

Sub-industry

Commercial real estate / office leasing brokerage

Offices

San Francisco, CA
New York, NY
Boston, MA

Business model

landlord-paid brokerage commissions
free-for-tenants marketplace
concierge / move-in services

Funding

Stage

Seed

Total raised

$6.1M

Latest round

Seed · Feb 2025

Latest amount

$6.1M

People & investors

Leadership

Rafi Sands

Co-Founder & CEO

Brendan Suh

Co-Founder & COO

Sean Miller

Co-Founder & CTO

Investors

1984 Ventures
Collide Capital
Nick Bloom
Y Combinator

Work & culture

Small, thoughtful team that emphasizes clarity, craft, and trust; salaried rather than commission-based; and comfortable operating in a hybrid in-person/remote setup.

Work style

Hybrid

Compensation

Public job postings show GTM & Biz Ops roles at $70k-$130k base plus 0.05%-0.15% equity, and a Full Stack Engineer (non-US) role at $55k-$110k base plus 0.05%-0.15% equity.

Benefits

equity
individual mentorship
career opportunities
supportive team

Product & market

Pricing

Free for tenants; Tandem is paid by the landlord when a lease is signed.

Differentiators

  • —Aggregates broker listings, landlord inventory, and off-market opportunities in one place
  • —Verified, up-to-date pricing and availability
  • —Next-day tours
  • —AI co-pilot for search and leasing workflow
  • —Dedicated local experts in SF, NYC, and Boston
  • —Salaried advisors rather than commission-based brokers
  • —Concierge-style move-in support
  • —Short lease terms including month-to-month options
  • —Tenant-friendly, landlord-paid model

Technology

Vercel
React
TypeScript
Next.js
tRPC
PostgreSQL
Drizzle ORM
OpenAI
Gemini
Replicate AI
Vercel AI APIs
WhatsApp
Matterport
Google Maps
Retool
Zoom
Slack
Figma
Basecamp
SQL

Customers

startup teams
Y Combinator-backed teams
companies in SF, NYC, and Boston
Writer AI
Norm AI
Luminal
Hadrius
Ambience Healthcare
GrailPay

Competitors

CoStar Group
Crexi
LiquidSpace
SpaceTogether
Tenavox
CBRE
JLL

Scale & contact

Estimated revenue

around $2M ARR (estimated)

info@tandem.space

Latest news

Big moment for GrailPay, and we aren't talking about their $10.5M Series A...

Tandem LinkedIn · Jul 2026

Company post showing GrailPay moving into a new SoHo office found through Tandem.

The $110B category no one is talking about

Rafi Sands Substack · Apr 2026

Founder essay arguing commercial brokerage is a major AI-native opportunity; says Tandem has completed 600 deals, manages 200+ active companies across three markets, and that 70% of clients come via referral or word of mouth.

Luminal signed a lease on a space they found through Tandem in 5 days

Tandem LinkedIn · Apr 2026

Company post highlighting a fast lease win for Luminal and reinforcing the speed of the Tandem process.

Introducing Tandem Concierge: your single point of contact for everything office space

Tandem blog · Feb 2025

Launched Tandem Concierge, a free service for select spaces in NYC and the San Francisco Bay Area to streamline lease and move-in logistics.

YC-Backed Tandem Raises $6.1M to Ease Return-to-Office

PR Newswire · Feb 2025

Announced a $6.1M seed round led by Collide Capital, 1984 Ventures, and Y Combinator, with support from Nick Bloom; the release also said Tandem had a $750k pre-seed in 2023 and was processing over $6M annually in rent payments.

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