June 2021 Cyber Funding & M&A Brief
Published by Pinpoint Search Group — the cybersecurity executive search firm that tracks every disclosed vendor funding round and acquisition in the sector.
At a glance
Get the full June 2021 dataset — every named company, round, investor, and segment.
What June told us
June 2021 produced the largest Series A round the workbook has tracked. Transmit Security raised $543M Series A in Identity — a Series A round size that exceeded most prior workbook Series D+ events through this point and signaled that customer-identity (CIAM) platforms were drawing growth capital at scale even at the earliest priced rounds. Funding activity ran $2.33B across 28 rounds, the second-largest disclosed funded month of 2021 so far (behind March's $2.38B). Below Transmit, Trulioo at $394M Series D+ in Identity, Illumio at $225M Series D+ in Zero Trust, Exabeam at $200M growth in SIEM, Aura at $150M Series D+ in Identity, and Claroty at $140M Series D+ in OT/ICS rounded out the funded headline cohort.
Identity carried the funded side with three nine-figure rounds in the same month — Transmit, Trulioo, and Aura combined for $1.09B in disclosed Identity-segment funding. The concentration sits alongside the segment's broader 2021 activity (Auth0 acquisition in March, Thycotic/Centrify merger in March, Ekata acquisition in April) and confirms that Identity ran as one of the most active funded categories of the first half of 2021.
M&A column produced two further large take-private and strategic events. STG's $1.20B acquisition of FireEye split the company's product business off from its Mandiant consulting and threat-intelligence arm — a structural separation that left Mandiant as a standalone listed entity inside Threat Intel. Bain Capital and Crosspoint Capital acquired ExtraHop at $900M in Detection/Response, returning a public-cyber network detection vendor to PE ownership. JFrog picked up Vdoo at $300M in IoT, a strategic platform tuck-in following Vdoo's $25M Series B in January 2021 — a roughly five-month full-cycle arc inside the workbook.
Stage and segment breakdown
| Stage | Count |
|---|---|
| Seed | 4 |
| Series A | 8 |
| Series B | 5 |
| Series C | 1 |
| Series D+ | 5 |
| Growth Funding | 3 |
| Spinout | 1 |
| Acquisition | 11 |
| Top segments | Transactions |
|---|---|
| Identity | 3 |
| Endpoint | 3 |
| Fraud | 3 |
| AppSec | 3 |
| Network Security | 2 |
| IoT | 2 |
Two deals worth your attention
Transmit Security — $543M Series A in Identity. Transmit Security raised $543M Series A for its passwordless authentication and customer-identity platform, the largest funded round of June and the largest Series A round the workbook has tracked. At $543M, the round exceeded most prior workbook Series D+ events through this point and signaled that CIAM platforms were drawing growth capital at scale even at the earliest priced rounds. The Series A scale also sat against the broader 2021 Identity-segment activity — Auth0 had just sold to Okta at $6.50B two months earlier, and the workbook's funded-side Identity column had been clearing nine-figure rounds at steady cadence since Q4 2020.
STG's $1.20B acquisition of FireEye. STG acquired FireEye's product business at $1.20B, structurally separating the company from its Mandiant consulting and threat-intelligence arm. The deal left Mandiant as a standalone listed entity inside Threat Intel and transferred FireEye's network and email security platform to PE ownership. The transaction is the third notable cyber-asset PE event of 2021 so far after Proofpoint (April, $12.30B) and McAfee Enterprise (March, $4.00B), and continues the year's broader pattern of PE buyers absorbing public-cyber assets at scale.
Companies we've covered before
Vdoo first appeared in January 2021 with a $25M Series B in IoT. The June 2021 $300M acquisition by JFrog closes a roughly five-month full-cycle arc inside the workbook — one of the faster Series B-to-strategic exits the data set tracks inside IoT and device security.
Claroty first appeared in June 2020 with a $50M Series D in OT/ICS. The June 2021 $140M Series D+ is Claroty's second tracked event, same segment classification, and a 2.8x step-up exactly twelve months later.
The other 37 transactions are in the data feed — including the 11 acquisitions whose values never hit the press. Get June's details and more →
Methodology
Every transaction in this brief was sourced from a primary public report and dedupe-checked against the master Pinpoint funding workbook, which now contains ~2,600 transactions back to May 2020. Funding totals reflect disclosed capital only; acquisition values are included where publicly available.
Each deal is classified against Pinpoint's normalized cybersecurity segment taxonomy — read directly off what the company says they protect and mapped to one of the canonical segments. The taxonomy has been maintained continuously since 2020 and currently covers roughly 55 segments. Identity, Data, Detection / Response, and Threat Intel have been tracked from the first month of the series; AppSec and GRC entered the following month; emergent categories (AI/LLM, Supply Chain, Quantum, Browser) are added when they first appear in vendor positioning. That normalization layer is what makes multi-year, cross-segment comparisons possible against an otherwise inconsistent vocabulary in the broader market.
About Pinpoint Search Group
Cybersecurity innovators work with Pinpoint Search Group to identify, attract, and land professionals that enable maturation, scale, and successful outcomes. As start-ups continue raising millions in funding and established vendors make acquisitions to round out their offerings, Pinpoint Search Group is keeping track.
Get the underlying data
The narrative above is the free version. The paid Pinpoint Cyber Funding Data feed gives you every named transaction, every disclosed investor, every segment classification — exportable, filterable, and updated as the deals close.