Red Sift
Track on RadarProactive security solutions for email, web, and PKI infrastructure
- Total raised
- $64.84M
- Employees
- 102
- Founded
- 2015
- Momentum
- 30
Cooling
Data updated August 2026
About
About Red Sift
At a glance
Red Sift is a cybersecurity company specializing in Email & Messaging Security, founded in 2015 and headquartered in London, United Kingdom. It has raised $64.84M in total funding, employs about 102 people, and is privately held.
Red Sift is a global cybersecurity company that provides proactive security solutions across email, web, and public key infrastructure (PKI). The company operates across EMEA, APAC, and the United States, offering regional expertise to protect organizations and their customers. The company's flagship product, OnDMARC, focuses on email authentication and DMARC implementation to prevent email-based attacks and domain spoofing. Red Sift also operates Hardenize and SSL Labs, tools that help organizations secure their websites through SSL/TLS and PKI security assessments. The company emphasizes ensuring that security standards like DMARC and TLS are properly implemented and maintained over time. Red Sift's approach centers on four key principles: embracing security protocols and ensuring correct implementation, protecting known gaps that can be exploited even when protocols are fully deployed, preventing security drift to maintain effective protection, and using AI to scale security operations for global teams. The company was co-founded by Rahul Powar (CEO), who previously worked as principal technical architect at Shazam and founded Apsmart, and Randal Pinto (CTO), who also has a background at Shazam. Ivan Ristic serves as Chief Scientist and is known for creating ModSecurity and authoring "Bulletproof TLS and PKI." Red Sift completed a $54 million Series B funding round in January 2022.
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FAQ
Frequently asked questions about Red Sift
When was Red Sift founded?▾
Red Sift was founded in 2015.
Where is Red Sift headquartered?▾
Red Sift is headquartered in London, United Kingdom.
How much funding has Red Sift raised?▾
Red Sift has raised a total of $64.84M in total funding.
Is Red Sift public or private?▾
Red Sift is a privately-held company.
How many employees does Red Sift have?▾
Red Sift has approximately 102 employees.
What does Red Sift do?▾
Red Sift is a global cybersecurity company that provides proactive security solutions across email, web, and public key infrastructure (PKI). The company operates across EMEA, APAC, and the United States, offering regional expertise to protect organizations and their customers. The company's flagsh…