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Zefir

eCommerce & Marketplaces · Saint-Mandé, France · Founded 2019

AI-powered real estate marketplace accelerating property transactions MoreLess

Zefir is a French proptech company operating an AI-powered real estate marketplace designed to accelerate property transactions for sellers, buyers, and agents. Founded in 2020 by childhood friends Remy Fabre (CEO) and Louis Lambert (CTO), the company was established to simplify the complex and lengthy process of buying and selling homes in Europe. The inspiration came from Fabre witnessing his parents' frustrating year-long struggle to coordinate selling a house to buy a new one. Before Zefir, the co-founders, who studied computer science, had previously launched a crypto investment micro-fund and a company called Metabrain, which focused on non-invasive brain interfaces.

Initially, Zefir operated on an iBuying model, directly purchasing properties to provide sellers with a quick and certain sale. The company has since evolved its business model. Today, Zefir functions as a collective sales platform that connects homeowners with a network of real estate agents to expedite sales. For sellers, the platform aggregates buyers from multiple partner agents, aiming to sell homes in an average of 58 days, nearly twice as fast as the French market average. This model provides homeowners with access to a broader pool of qualified buyers while a designated lead agent manages the process, including viewings.

For real estate agents, Zefir acts as a partner, providing qualified leads and tools to close deals faster, with a reported potential to increase their annual income significantly. The company's business model involves a take rate, which is a percentage of the home's sale price, similar to a traditional brokerage fee. In recent developments, Zefir launched ZIA, an AI-powered home-search assistant for buyers, extending its AI integration to the buy-side of transactions. The platform uses AI to automate operational tasks for brokers, such as listing creation and customer support, allowing them to focus on high-value client interactions.

Zefir has raised approximately €57 million in total funding over four rounds from investors including Sequoia Capital, Zigg Capital, Heartcore Capital, and FinTech Collective. Headquartered in Paris, the company primarily operates in the largest cities across France and plans to expand its geographic footprint. Having achieved over €600 million in annualized home sales, Zefir aims to grow significantly by enhancing its AI capabilities and expanding its team.

Keywords: real estate marketplace, proptech, AI home search, collective property sales, property technology, real estate agent network, home selling platform, residential property transactions, ZIA AI assistant, French real estate, digital brokerage, fast home sales, real estate transaction platform, homeowner services, buyer agent tools, real estate AI, property sales acceleration, agent collaboration platform, real estate data, Louis Lambert, Remy Fabre

Valuation $100–500M
Revenue $1–10M
Headcount 100–500
Total funding $50–100M
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Company overview

Zefir company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2019
Headquarters
Saint-Mandé, France
Employees
127
Open positions
7
Dealroom signal
93.7
technologyArtificial Intelligenceclient focusb2ctechnologyBig DatatechnologyDeep TechtechnologyMachine Learningsub industrySearch, Buy & Rentbusiness modelMarketplace & ecommerceindustryReal EstatesectorCore AIsectorDigital: AI and Quantum ComputersectorObservatoire DeeptechsectorHard TechsectorAI Applicationssectorradar de l'innovation

Valuation & funding

Zefir funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
LATE VCOther financing Sep 2025 $17M $110M Fintech Collective · Heartcore Capital · Sequoia · FJ Labs
SERIES BOther financing Apr 2024 $12M $110M Sequoia · Zigg Capital
SERIES AOther financing Feb 2022 $22M $88M Sequoia
SEEDOther financing Apr 2021 $4.4M $18M Heartcore Capital · Xavier Niel · Alex Chesterman · Third Kind Venture Capital
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Financials

Revenue and workforce over time

Available revenue and workforce history. Fields without reported data are omitted.

YearRevenueGrowthEmployees
2026 $9.9M 0% 127
2025 $9.9M 0% 101
2024 $9.9M 0% 70
2023 $9.9M 0% 74
2022 $9.9M 82
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Growth signals

Zefir website traffic

Latest recorded traffic for Zefir is 230K monthly website visits, down 30.3% over the last three months. Zefir's team grew 25.7% over the past year.

Latest monthly visits230K 3-month web change-30.3% 1-year team growth+25.7%
Monthly website visits62 observations · Apr 2021–Jul 2026
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Comparisons

Zefir compared with similar companies

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Talent graph

Zefir's talent

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Team profiled 15 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

11 investors on Zefir's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 6 investors entered at this stage
Series A 2 investors entered at this stage
Sequoia
Zigg Capital
Series B+ 3 investors entered at this stage
Fintech Collective
FJ Labs
TX Ventures

Global footprint

Where Zefir has talent and traffic

Workforce by country
2 countries with
team presence
🇫🇷 France98.8%
🇬🇧 United Kingdom1.2%
2 countries shown

In the news

Latest news about Zefir

Recent press, funding announcements, and product moves mentioning Zefir — open to read from the original sources.

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Market sentiment

What the market is saying about Zefir

An AI-synthesized read of the highest-engagement posts about Zefir on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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