Ranking the 25 Top Venture-Backed Cybersecurity Companies Growing Fast in 2025

Cybersecurity has been huge in 2025. While overshadowed by AI funding, there have still been some large cybersecurity exits and acquisitions, most notably Google’s $32 billion acquisition of Wiz. We want to to explore the rest of the space, but not just anecdotaly. We needed some data.

So we put our heads together and refined metrics on cybersecurity companies that have received lots of funding and are funded in the Silicon Valley ecosystem. This allows more clear comparisons with similar funding and business models. It also applies the power laws to funding and company concentration in this space.

Top 25 Cybersecurity Startups Ranking Table

We analyzed data from Crunchbase to uncover the top US cybersecurity firms with top investors from Silicon Valley. Here they are.

CompanyGFD Tech100 Final Score*Funding Score*Website Score*Branded Keyword Score*
Zscaler80.182.958.357.0
Akamai Technologies76.981.656.745.7
Wiz74.476.153.358.3
Vanta73.777.450.251.0
ID.me73.170.370.271.4
Cyera72.777.943.045.5
Island71.771.448.265.8
Aura70.869.257.866.9
Persona70.569.462.264.3
NinjaOne69.672.355.350.7
ReliaQuest66.873.337.636.7
Netskope66.668.848.149.4
Arctic Wolf66.566.848.457.4
SandboxAQ65.871.137.240.8
Coalition64.865.845.454.0
Armis64.368.234.145.0
Securonix63.569.042.137.3
Axonius62.967.041.642.3
Lookout61.861.446.156.9
Huntress61.863.252.749.2
Halcyon61.461.839.556.0
Sysdig61.264.946.041.0
Snyk61.061.453.249.7
Orca Security60.864.244.241.9
BlueVoyant60.864.640.339.4

*GFD’s Tech100 score is a final composite score of the Funding Score, Website Score, and the Branded Keyword score.

Key Takeaways:

  • The three hottest Cyber Security firms in July 2025 are Zscaler, Akamai Technologies, and Wiz due to the volume and freshness of their funding, the recent performance of their website, and the growth trends of their branded keyword.
  • Wiz’s recent acquisition by Google for $32 billion ranks it highly on the list

Ranking the Top Startups by Funding Score

Funding is huge. This breakout highlights those firms that have raised the most venture captial rounds, ranked by a combination of date and volume. Note we are also including post-IPO raises as well. These are worth considering because they’re all part of the competitve system that all cybersecurity startups are competing in.

CompanyTotal Funding AmountMost Recent Funding AmountLast Funding DateGFD Funding Score*
Zscaler$1.67B$1.50B7/1/202582.9
Akamai Technologies$2.64B$1.50B5/14/202581.6
Cyera$1.30B$540M6/11/202577.9
Vanta$503M$150M7/23/202577.4
Wiz$2.00B$1.00B9/18/202476.1
ReliaQuest$830M$500M3/31/202573.3
NinjaOne$762M$500M2/24/202572.3
Island$810M$250M3/26/202571.4
SandboxAQ$975M$150M4/4/202571.1
ID.me$749M$275M1/30/202570.3

*GFD’s Funding Score captures funding volume and velocity by combing total funding with recent funding amount and recency.

Key Takeaways:

  • When accounting for funding volume and freshness, Zscaler leads the industry as it is the cybersecurity firm with the third highest total funding and has very recently received a staggering funding amount of $1.5B.
  • ReliaQuest and NinjaOne have become promising firms in the cybersecurity industry as both have received $500M funds within the past 6 months.
  • Industry leader Cyera and Akamai Technologies continue to lead as both have recently received +$500M funds within the past year.

1. Zscaler

Total Funding Amount: $1.67B

Most Recent Funding Amount: $1.50B

  

2. Akamai Technologies

Total Funding Amount: $2.64B

Most Recent Funding Amount: $1.50B

  

3. Cyera

Total Funding Amount: $1.30B

Most Recent Funding Amount: $540M

  

GFD Website Score Breakdown

Website traffic and traffic growth is important, but doesn’t always line up perfectly with other attributes and events like funding. We were curious which of these companies saw the strongest To compile the website score we captured the volume of recent website visits and combined it with the companies’ website growth trends.

CompanyLast Month’s Total VisitsMonthly Average Visit Over Last 6 MonthsMonthly Visit GrowthGFD Website Score*
ID.me46.7M58.1M-10.94%70.2
OneTrust9.3M8.4M-17.18%63.1
Bitwarden6.7M7.3M-4.11%62.6
Persona5.9M7.7M-13.06%62.2
enSilo4.9M5.4M-13.67%61.1
Zscaler2.3M2.6M-11.24%58.3
Aura2.4M2.5M-21.37%57.8
CertiK1.7M1.6M-10.76%56.8
CrowdStrike1.5M1.6M-4.47%56.8
Akamai Technologies1.5M1.5M-2.51%56.7

Key Takeaways:

  • ID.me is by far the industry leader in terms of website visits as it is has on average over 50M visitors in the last six months.
  • From June 2025 to July 2025, we see that all companies in our top ten have had a decrease in website traffic. The companies seeing the biggest decrease include OneTrust and Aura.

1. ID.me

Last Month’s Total Visits: 46.7M

Monthly Average Visits Over 6 Months: 58.1M

Monthly Visit Growth: -10.94%

  

2. OneTrust

Last Month’s Total Visits: 9.3M

Monthly Average Visits Over 6 Months: 8.4M

Monthly Visit Growth: -17.18%

  

3. Bitwarden

Last Month’s Total Visits: 6.7M

Monthly Average Visits Over 6 Months: 7.3M

Monthly Visit Growth: -4.11%

  

Cybersecurity Startups with Strongest Branded Search Growth

A great way to measure brand growth is by analyzing keyword growth for the company across a period of time. We sourced Google Search keyword data for companies on the list and ranked by a score that accounted for total keyword search as well as search volume change over the last year.

ID.me stood out as a leader here, followed closely by Aura and Island.

CompanyTotal Keyword Search Volume
(1 Month)
Average Weekly Search Volume Change (1 Year)1 Year Trend Positive or Negative?GFD Branded Keyword Ranking*
ID.me1.5M5770.46+71.4
Aura1.2M712.29+66.9
Island1.0M707.72+65.8
Persona823K285.03+64.3
Wiz301K70.60+58.3
Arctic Wolf110K568.13+57.4
Zscaler201K263.66+57.0
Lookout246K7.78+56.9
Halcyon201K64.40+56.0
Teleport165K40.37+54.8

*GFD’s Branded Keyword Ranking is a metric that combines monthly branded keyword search volume with a 1-year linear trend that is observed weekly and adjusted by search volume.

Key Takeaways:

  • ID.me is the fastest growing branded keyword with an average weekly search increase of about 5.77K searches.
  • The top ten cybersecurity firms have experienced a general increase in their branded keyword searches over the course of a year.

1. ID.me

Total Keyword Search Volume (1 Month): 1.5M

Average Weekly Search Volume Change: 5770.50

  

2. Aura

Total Keyword Search Volume (1 Month): 1.2M

Average Weekly Search Volume Change: 712.29

  

3. Island

Total Keyword Search Volume (1 Month): 1.0M

Average Weekly Search Volume Change: 707.72

  

Methodology and Sources:

  • Methodology: We collected data for 10k+ companies from Crunchbase and aggregated it into a set of scores through the use of quantitative transformations and expertly curated weighted averages.
  • Source: Crunchbase Data
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