Red Sift

What the company sells

Red Sift sells a security platform built around DMARC, SPF, and DKIM email authentication, with added modules for TLS certificate monitoring, brand and domain impersonation detection, and external attack surface discovery. The company was founded in 2015, is headquartered in London, United Kingdom, and is privately held.

Categories

• Email authentication and DMARC (primary category)
• External attack surface management
• Digital risk protection
• Machine identity and PKI

Headquarters

London, United Kingdom

Founded

2015

Ownership

Privately held

Website

redsift.com

Products and services

• Red Sift OnDMARC

  A cloud-based tool that configures and manages DMARC, DKIM, and SPF records to stop email spoofing.

• Red Sift Brand Trust

  A tool that detects and monitors lookalike domains and brand impersonation and supports takedown of malicious sites.

• Red Sift Certificates

  A tool that discovers and monitors an organization's TLS certificates to flag misconfigurations before they cause downtime or attacks.

• Red Sift ASM

  A tool that discovers external-facing and cloud assets, including previously unknown ones, and monitors them for misconfigurations.

Sources

1. Red SiftUndated page, accessed September 27, 2026 · Tier A: the company, a regulator or a filing
2. Red SiftUndated page, accessed September 27, 2026 · Tier A: the company, a regulator or a filing
3. SiliconANGLEPublished February 24, 2022 · Tier B: trade or business press
4. Austin American-StatesmanPublished March 4, 2022 · Tier B: trade or business press
5. Red Sift via EIN PresswirePublished March 19, 2026 · Tier B: trade or business press
6. The Wealth MosaicUndated page, accessed September 27, 2026 · Tier C

Recorded September 27, 2026 from the sources above. Descriptions are in our own words; we do not rank or recommend vendors, and no vendor pays to be listed or to change what we write. Disclosure: until the publisher confirms it has no business relationship with this company, treat one as possible (how the network works). Spot a factual error? Request a correction.