Censys
Censys provides internet infrastructure mapping and security insights for governments and enterprises. The company has raised $198M and employs 187 people.
The growth story
Censys grew from 74 to 187 employees between 2021 and 2026, raising $198M along the way, most recently a Series D in March 2026.
About
Censys sells software that maps internet infrastructure to help organizations identify security risks and investigate threats. Its customers include governments and Fortune 500 companies.
The company has raised $198M, most recently in a Series D round in 2026. It employs 187 people, with engineering making up its largest function at 57 staff.
Founders and leadership
Engineering is Censys' largest function with 57 staff. The company is led by founders and investors including HD Moore, with backing from firms like Google Ventures and Greylock.
The Censys org chart
Zakir Durumeric (Co-Founder and CEO) leads 60 mapped leaders with 3 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 59 (+44% YoY), Sales 31 (+19% YoY), Information Technology 22 (+29% YoY), Human Resources 10 (+43% YoY), Business Development 9 (0% YoY), Marketing 9 (+200% YoY).
Talent flow
Censys hires heavily from security firms like SentinelOne and Cisco, with 13 staff coming from Attivo Networks. Alumni often move to other security startups like VulnCheck and Silent Push.
Most common previous employers of Censys staff: Attivo Networks®, a SentinelOne Company (13), SentinelOne (9), Cisco (8), Duo Security (8), Meru Networks (8), Google (7). Former Censys employees most often moved to VulnCheck (5), Silent Push (4), Google (4), CrowdStrike (4), Doppel (3), FusionAuth (2).
Alumni worth knowing
The Censys mafia
Censys alumni have founded 7 companies, including Maro (35 staff) and furl (26 staff). Other startups include BeeSafe AI and ArtOps Marketing.
8Jadon Cruz Montero, was Senior Product Manager, Cloud Security until 2021Derek Abdine, was Chief Technology Officer until 2021Anastasiya Romadan, was Senior Software Engineer until 2023Ivan Cangemi, was Software Engineer and Manager until 2023Ariana Mirian, PhD, was Senior Security Researcher until 2026Brandon W., was Marketing Operations Manager until 2025
Ryan Farrell, was Customer Success Engineer until 2024
Edwin Zishiri, was Software Engineer until 2022Web traffic
Traffic mix: 43% direct, 40% search, 7% social, 3% paid.
What this company is made of
Most common skills at Censys: Leadership (58), Cybersecurity (51), Python (Programming Language) (50), Management (49), Cloud Computing (43), Sales (42), Security (41), JavaScript (39).
Where the team actually sits
Censys people are concentrated in Michigan, United States (22), Washington DC-Baltimore Area (10), England, United Kingdom (8), Virginia, United States (8). 2 offices on record.
Search footprint
Censys attracts about 1,816 organic search visits a month, traffic worth roughly $14K a month if bought through ads. It gained 294 ranking keywords and lost 198 in the last period.
Frequently asked
Censys has 187 employees as of September 2026.
Censys has raised $198M in total, most recently a Series D round in March 2026.
Censys was founded in 2017 by Zakir Durumeric.
Zakir Durumeric (Co-Founder and CEO) sits at the top of Censys's reporting structure, with 3 direct reports.
The most common previous employers of current Censys staff are Attivo Networks®, a SentinelOne Company (13 people), SentinelOne (9 people), Cisco (8 people).
Former Censys employees most often move to VulnCheck (5), Silent Push (4), Google (4).
At least 7 companies have a founder who previously worked at Censys, including Maro, furl, Weltlinie.
Censys attracts about 1,816 organic search visits a month, worth roughly $14K a month in equivalent ad spend.
The most common skills among Censys staff are Leadership, Cybersecurity, Python (Programming Language), Management, Cloud Computing.
Censys staff are concentrated in Michigan, United States (22), Washington DC-Baltimore Area (10), England, United Kingdom (8).
Censys has about 59 people in Engineering, up 44% over the past year, as of September 2026.
Censys has about 31 people in Sales, up 19% over the past year, as of September 2026.
Computed from 170 current and 258 former Censys profiles, as of September 2026. Source: Crustdata.
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