ZK Email

Private

United StatesCrypto & Web3https://zk.email/

Last Round

Grant

Jun 25, 2025

Total Funding Raised

$475,000

Company Overview

ZK Email is a technology company that provides a cryptographic infrastructure and library for the anonymous verification of email signatures and data using zero-knowledge proofs.

Sector

Crypto & Web3

Verticals

Blockchain Infrastructure, Digital Identity, Smart Contracts, Data Protection

Business Model

B2B

Customer Profile

Services & Consulting

AI Layer

Non-AI

Keywords

zero-knowledge proofsZK proofsemail verificationon-chain identitysmart contract oracleDKIM verificationprivacy-preserving authenticationblockchain infrastructuredecentralized identityDIDdeveloper SDKaccount recoverycrypto oracleweb3 authzk-email

Historical Pricing

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ZK Email Comps

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ZK Email comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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ZK Email Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Grant	Jun 25, 2025
Grant	Sep 4, 2024
Grant	Feb 20, 2024
Grant	Dec 19, 2023
Grant	Dec 12, 2022

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ZK Email Investors

Notable investors and investment history

ZK Email investors
Investor	Rounds
0xPARC Foundation	Grant
ENS DAO	Grant
Ethereum Foundation	Grant

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Market signals

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Sep 4, 2024
$75K grant received from Safe Ecosystem Foundation.

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ZK Email Filings

SEC and related filings with document metadata.

Data table
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ZK Email Filings

SEC and related filings with document metadata.

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Firmographic Details

HeadquartersUnited States

Employee Range5

Year Founded2023

Last FundingJun 25, 2025

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