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 3 of 3
| Date | Deal | Amount | Source |
|---|---|---|---|
| October 2023 | Proofpoint acquired Tessian | Undisclosed | Report on Proofpoint buying Tessian, October 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2023 | Data443 acquired CyrenFirm guarding online communications, spotting dangers and sorting web addresses | Undisclosed | Report on Data443 buying Cyren, May 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2023 | Cisco acquired ArmorbloxEmail security firm using predictive and generative artificial intelligence technology | Undisclosed | Report on Cisco buying Armorblox, May 2023 (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.