TrustLayer

TrustLayer is a UK-based cloud security vendor offering a bundled platform — Browse (secure web gateway/CASB), Mail (email security), Posture (SaaS and cloud security-posture enforcement), and Users (security-awareness and behavior tooling) — sold as a single stack aimed at mid-market and MSP-served organizations that want to avoid integrating several point products. Until a recent rebrand, the company operated under the name CensorNet; censornet.com now redirects to trustlayer.co.uk.

Originally founded in 2007 as CensorNet, the company was acquired and revitalized by a group of industry veterans led by CEO Ed Macnair in 2014. Under Macnair’s leadership it grew from roughly 5 employees and a handful of customers to around 50 employees serving more than 1,000 customers across 40 countries, by the company’s own account. The rebrand from CensorNet to TrustLayer does not appear to have been publicly announced; it was confirmed for this profile only by the site’s own redirect and a leftover image file (a CensorNet-branded dashboard screenshot) still hosted on the new site.

TrustLayer markets an “AI Firewall” module and states that it blocks roughly one million threats annually across its protected customer base — a self-reported aggregate rather than an independently audited figure. The company (under the CensorNet name) was named “Cloud Application Security Company of the Year” in a 2024 industry award program, though vendor-award programs of this kind are a lower bar than independent lab testing.

Secure web gateway, email security, and CASB are mature, commoditized categories, and TrustLayer competes against far larger, more visible vendors in each. Its bundling under one brand is a coherent packaging pitch for the mid-market, but the quiet, unexplained rebrand is a detail CISOs evaluating the vendor should ask about directly.