Acquisition activity in the cybersecurity space is set to outpace both 2015 and 2016 this year, according to Momentum Partners.
Momentum research found that M&A activity in the first half of this year totalled $5.2bn (£4bn) across 69 transactions.
The majority of the total spent - $3.6bn - came from the three highest transactions alone.
Based on this research, CRN has ranked the top 10 cybersecurity acquisitions of 2017 so far.
10. Hexadite - acquired by Microsoft for $100m, June
Microsoft announced the acquisition of incident investigation and remediation start-up Hexadite in June.
Founded in 2014, Hexadite had previously raised $10.5m in venture capital funding. The vendor is headquartered in Boston and also has a team of researchers in Israel.
Microsoft said the acquisition will bolster its work in helping commercial customers detect responses in Windows 10 - specifically with the addition of Hexadite's end-point security automated remediation.
Microsoft did not reveal details of the transaction, but is widely reported to have paid $100m.
9. LightCyber - acquired by Palo Alto Networks for $105m, February
Palo Alto Networks acquired behavioural analytics vendor LightCyber for $105m.
LightCyber uses machine learning to build knowledge of how users and devices operate on a network, which allows it to detect changes in behaviour when attacks occur.
Founded in 2012, LightCyber launched into Europe last year, opening offices in Munich and Kent.
The vendor has raised $32m in total, with investors including Check Point and Cato Networks founder Shlomo Kramer.
8. Open Systems AG - acquired by EQT partners for $120m, June
The only channel firm in this list, Switzerland-based managed security services provider (MSSP) Open Systems AG was acquired by private equity investor EQT Mid Market Europe Fund.
Founded in 1990, Open Systems began life as a security integrator before morphing into an MSSP specialising in SD-WAN, network security, web and application security, and incident response.
Open Systems currently operates in over 180 countries and has operations centres in Zurich and Sydney, as well as an office in New York.
7. Invincea - acquired by Sophos for $120m, February
Network and end-point security vendor Sophos snapped up machine-learning start-up Invincea in February for $100m, with a potential $20m to be added dependent on billings growth in the first year of ownership.
Founded in 2009 and headquartered in Virginia, Invincea develops next-generation end-point security and has been particularly prominent in the government, healthcare and financial services spaces.
In its last 12 months as an independent company Invincea filed revenue of $13.4m, with a pre-tax loss of $11.8m.
Sophos CEO Kris Hagermantold CRN that Invincea is set to be integrated into the wider Sophos portfolio by the end of the year.
6. Guavus - acquired by Thales for $215m, April
Big data analytics vendor Guavus was snapped up by Paris stock exchange-listed giant Thales for $215m in April.
The Aerospace and defence specialist said that Guavus will open up opportunities in markets including cybersecurity, infrastructure monitoring, network, and telecommunications.
At the time of the acquisition, Guavus was expecting to turn over $30m in its fiscal year.
Founded in 2006, the firm is headquartered in Silicon Valley and employees 250 people, some of whom are based in its Canadian and Indian offices. Its customers include AT&T, T-Mobile and Verizon.
The acquisition is expected to be completed in Q3.
Click through to page two to see the deals ranked in places five to one
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