Red Sift
redsift.com
Email Security
Information Security
Cybersecurity
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Overview
Red Sift is a London cybersecurity company founded in 2015 that protects organisations from impersonation and domain abuse. Its platform automates email authentication, certificate monitoring and attack surface discovery in one view. The company works with brands trying to stop criminals sending mail that appears to come from them.
News
What Is DMARC? Plain-English Guide from Red Sift
Learn how DMARC works, why it stops spoofing, and how to reach enforcement. Definitions, steps, and best practices.
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Report
Red Sift Closes $54 Million Series B Funding Round
Red Sift has closed a $54M Series B round. Here's what the funding is for, who led the round, and what it means for the platform and customers.
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Report
Writing BPF Code in Rust: A Practical Guide
Rust brings memory safety and performance to BPF development. Here's a hands-on walkthrough of writing BPF code in Rust from the ground up.
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Report
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
London
United Kingdom
HQ
Red Sift
4th Floor, 21A Noel Street, London, W1F 8GR
Financials
Latest round
Venture - Series Unknown
Funding rounds
13
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2025 | — | Details |
| Venture - Series Unknown | 2025 | — | Details |
| Venture - Series Unknown | 2025 | — | Details |
| Venture - Series Unknown | 2024 | — | Details |
| Venture - Series Unknown | 2024 | — | Details |
| Venture - Series Unknown | 2023 | — | Details |
| Venture - Series Unknown | 2023 | — | Details |
| Venture - Series Unknown | 2022 | — | Details |
| Venture - Series Unknown | 2021 | — | Details |
| Venture - Series Unknown | 2019 | — | Details |
| Venture - Series Unknown | 2018 | — | Details |
| Venture - Series Unknown | 2016 | — | Details |
| Venture - Series Unknown | 2015 | — | Details |