Email security acquisitions and funding
34 acquisitions of email security vendors since 2020 and 36 funding rounds since 2022 on record. The most active buyers are Hornetsecurity Ltd. (3), Kiteworks (2) and Proofpoint (2). See the email security vendors in the directory.
Browse other categories
- Managed security services 466
- GRC and compliance automation 230
- AI and LLM security 217
- Security consulting and vCISO 213
- Fraud and payment fraud prevention 165
- Application security testing 162
- Identity and access management 159
- Encryption and key management 156
- Threat intelligence 148
- Security awareness and human risk 138
Deals
Showing 1 to 7 of 7
| Date | Deal | Amount | Source |
|---|---|---|---|
| 3 Sept 2026 | Guardio raised fundingGuardio provides online protection for individuals and businesses, securing accounts and devices.Investors Assaf Rappaport, ION Crossover Partners, Union Tech Ventures, Vintage Investment Partners, Cerca Partners and 1 more | $40m | Report on the Guardio funding round of 3 Sept 2026 (opens in a new tab) |
| September 2026 | xorlab raised a Series A roundInvestor Spicehaus Partners | $5.8m | Report on the xorlab funding round of September 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| July 2026 | StrongestLayer raised a seed roundStrongestLayer provides AI email security for Microsoft 365 and Google Workspace.Investor Inovia Capital | $4.1m | Report on the StrongestLayer funding round of July 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| July 2026 | AegisAI raised a Series A roundAegisAI provides agentic email security for Microsoft 365 and Google Workspace.Investor Battery Ventures | $36m | Report on the AegisAI funding round of July 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2026 | Ocean raised a Series A roundInvestor Lightspeed Venture Partners | $20m | Report on the Ocean funding round of May 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| February 2026 | CypherShield raised a pre-seed roundInvestor LvlUp Ventures | Undisclosed | Report on the CypherShield funding round of February 2026 (opens in a new tab) |
| January 2026 | CyberMaxx acquired Corvid CyberdefenseProvides email security services | Undisclosed | Report on CyberMaxx buying Corvid Cyberdefense, January 2026 (opens in a new tab)via SecurityWeek (opens in a new tab) |
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Each Report link goes to the announcement or story the source cites, and the via link to the round-up or newsletter issue. Amounts are in US dollars. The category is what the bought or funded company sells.