Skip to main content
Caplight Logo









Inbox Zero

Inbox Zero

Private
—Enterprise Softwarehttps://www.getinboxzero.com/

Last Round

Accelerator

May 1, 2025

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Inbox Zero operates in Enterprise Software. Its latest recorded funding round was an Accelerator round in May 2025.

Inbox Zero is a business/productivity software company that provides an AI-powered email management platform for inbox organization, automated sorting, and reply drafting.

Sector

Enterprise Software

Verticals

Enterprise Communication, NLP & Conversational AI, Workflow Automation

Business Model

B2B

Customer Profile

Subscription SaaS

AI Layer

Application

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

Book a demo

For institutional investors. Book with your work email.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

Book a demo

For institutional investors. Book with your work email.

Inbox Zero Comparables

Compare Inbox Zero with similar companies based on industry and business-model similarity.

Inbox Zero comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Clean Email
88%
Cora
84%
Mode Inc.
83%
Book a demo to see all comparables

For institutional investors. Book with your work email.

Inbox Zero Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
AcceleratorMay 1, 2025
Book a demo to see all funding rounds

For institutional investors. Book with your work email.

Key People

Founding team and executive leadership

Eliezer Steinbock

Founder, CEO

Founding Team

For institutional investors. Book with your work email.

Inbox Zero Investors

Notable investors and investment history

Inbox Zero investors
InvestorRounds
TinySeedAccelerator

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jul 27, 2026

    Monthly visitors increased 53% MoM.

  • Jan 21, 2026

    Monthly visitors grew 44% MoM, from 34.5K to 49.6K.

Book a demo to see all signals

For institutional investors. Book with your work email.

Inbox Zero Filings

Explore SEC and related filing metadata, where available.

Inbox Zero filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

Filing documents are not displayed on this public page. Request access to learn about available coverage.

Book a demo

For institutional investors. Book with your work email.

Frequently Asked Questions

Common questions about Inbox Zero's valuation, stock price, and market status.

Is Inbox Zero a public or private company?

Inbox Zero is a private company.

What is the current stock price of Inbox Zero?

Inbox Zero is a private company, so its shares have no public market price. Caplight tracks Inbox Zero's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Inbox Zero worth (valuation)?

Valuation information for Inbox Zero is not publicly available.

Can I buy Inbox Zero stock?

Inbox Zero shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Inbox Zero's last funding round?

Inbox Zero's most recent funding round was Accelerator on May 1, 2025.

Who are the main investors in Inbox Zero?

Key investors in Inbox Zero include TinySeed.

Will Inbox Zero IPO soon?

No public IPO plans have been announced for Inbox Zero.

How can I track Inbox Zero secondary market activity?

Caplight tracks bids, offers, and trades in Inbox Zero's shares on secondary markets.

Firmographic Details

Headquarters—
Employee Range5
Year Founded2023
Last FundingMay 1, 2025

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Book a demo

For institutional investors. Book with your work email.

See something wrong or outdated?