Censys Valuation, Funding & Investors

Censys is valued at $328M as of October 2023.

Last Censys valuation

$328M

Series C · Oct 2023

Last Censys funding round

$40M

Series D · Mar 2026

Cumulative funding Censys raised

$143M

across 5 funding rounds

Key investors in Censys

  • GV
  • Greylock
  • Decibel Partners
  • Intel Capital
  • OUP (Osage University Partners)
  • Mango Capital

Censys Overview

About Censys

Censys is an Ann Arbor-headquartered internet intelligence platform for security teams. It scans the entire public internet hourly to catalog 400 billion IPv4 addresses, providing data on devices, certificates, and protocols for threat hunting and exposure management. Integrated with SIEM tools like Splunk, it helps enterprises discover shadow IT and vulnerable assets. Founded in 2015 from University of Michigan research, Censys serves Fortune 500 firms with APIs and dashboards.


Founded

2017

HQ

United StatesAnn Arbor, MI

Website

censys.com

Status

Privately held

Customer focus

B2B

Revenue model

Subscription

Valuation

$328M (Oct 2023)

Censys Valuation

Censys is currently valued at $328M, based on its Series C in October 2023.

The $50M round was led by Decibel Partners, Greylock, GV and Intel Capital, with participation from Four Rivers Partners V and Ascension Ventures.

Censys valuation by funding round

Censys valuation by funding round
DateStageValuation
Oct 2023Series C$328M

Censys Funding History

Censys has raised a total of $143M across 5 funding rounds.

Censys' first fundraising round was a $3M seed round in November 2018. The most recent completed round was a $40M Series D in March 2026.

Censys funding rounds

Censys funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Mar 2026Series DMorgan Stanley Expansion Capital (lead); GV; Decibel Partners; Greylock; Intel Capital$40M--
Oct 2023Series CDecibel Partners (lead); Greylock (lead); GV (lead); Intel Capital (lead); Four Rivers Partners V; Ascension Ventures$50M$328MCensys is a leading Internet Intelligence Platform specializing in Threat Hunting and Exposure Management, providing comprehensive real-time views of global networks and devices. Trusted by companies like Google, Cisco, Microsoft, and over 51% of the Fortune 500, as well as government agencies, it offers enriched data for security and intelligence teams. Founded in 2017 in Ann Arbor, Michigan, Censys announced a $75M funding package on October 24, 2023, comprising a $50M Series C equity round led by Decibel Partners, GV, Greylock, and Intel Capital, with new investors Ascension Ventures, Four Rivers Partners V, and accounts managed by Hamilton Lane, plus $25M debt from SVB Capital and Silicon Valley Bank. with total funding to date reaching $128.1M. Censys plans to use proceeds to accelerate product innovation, solidify leadership in Threat Intelligence Data, scale global revenue growth, expand into healthcare security with Ascension Ventures' support, grow its workforce from 134 to 150 employees by end-2023, and open a Seattle office. Since its January 2022 Series B, Censys achieved over 130% Annual Recurring Revenue (ARR) growth, driven by partnerships with tech vendors, launch of the Censys Internet Map, international office expansions, and SOC 2 Type II compliance. It serves 350,000 free users and over 180 paying customers, including the FBI and Department of Homeland Security.
Jan 2022Series BIntel Capital (lead); GV; Decibel Partners; Greylock$35M-Censys, a cybersecurity company based in Ann Arbor, Michigan, provides continuous attack surface management, offering tools to discover, monitor, and manage internet-facing assets and risks, including previously unknown assets, to identify security issues and integrate with existing solutions. Originally an open-source research project from the University of Michigan, it serves high-profile customers such as Google, the U.S. Department of Homeland Security, NATO, and the Swiss Armed Forces. The company completed a $35 million Series B funding round on January 27, 2022, led by Intel Capital, with participation from previous investors Google Ventures (GV), Decibel Partners, and Greylock Partners. This followed a $15.5 million Series A in August 2020, bringing total funding to $53 million at that point. The funding aims to accelerate R&D, engineering, product development, and sales operations, with a particular focus on expansion into Western Europe and enhancing asset discovery and self-service capabilities. Concurrently, Brad Brooks, former CEO of OneLogin with experience at DocuSign, Juniper Networks, and Microsoft, was appointed CEO to drive the company's growth phase, succeeding interim CEO Lorne Groe, who returned to CFO and COO roles. Brooks highlighted the platform's role as a security problem solver amid rising cyber threats from unmanaged internet assets. Censys reported significant triple-digit annual recurring revenue growth year-over-year around the time of the round, reflecting strong traction driven by shifts to remote/hybrid work and cloud adoption. The company positions itself in the competitive attack surface management market against players like Randori, Bishop Fox, NCC Group, and CyCognito, emphasizing comprehensive inventory and risk management for expanding security perimeters. This Series B marked a transition from startup to growth stage, with plans for further funding within 9-12 months.
Aug 2020Series ADecibel Partners (lead); GV (lead); Greylock; OUP (Osage University Partners)$16M-Censys is a cybersecurity platform founded in 2017 that provides internet intelligence and exposure management solutions. The company develops technology that scans the internet to identify devices connected to clients' networks, including internet-of-things devices, that may lack firewall protection and be vulnerable to external threats. In August 2020, Censys raised $15.5 million in a Series A funding round co-led by GV (Google Ventures) and Decibel Partners, with participation from Greylock Partners. The funding was intended to support hiring across sales, engineering, and leadership positions, with the goal of doubling headcount from approximately 50 employees to 100 within one year. By the time of its Series C round in October 2023, Censys had grown to serve over 180 paying customers including major technology companies such as Google, Cisco, and Microsoft, as well as government agencies including the FBI and Department of Homeland Security, alongside 350,000 users of its free service.
Nov 2018SeedGreylock (lead); GV (lead); Decibel Partners; HD Moore; Mango Capital$3M-Censys raised $2.6 million in a seed financing round in November 2018 led by GV and Greylock Partners. The company, founded in 2017, is an Internet Intelligence Platform for threat hunting and exposure management that provides organizations with real-time visibility into global networks and devices.

Who has invested in Censys?

10 investors have backed Censys across its funding rounds, including GV, Greylock, Decibel Partners, Intel Capital, OUP (Osage University Partners) and Mango Capital.

Lead investors include Morgan Stanley Expansion Capital, Decibel Partners, Greylock, GV and Intel Capital.


Censys Investors

Investors in Censys by funding rounds participated
InvestorHQRoundsRoleFirst check
GVUnited StatesSan Francisco, CA5LeadNov 2018
Decibel PartnersUnited StatesSan Francisco, CA5LeadNov 2018
GreylockUnited StatesSan Francisco, CA5LeadNov 2018
Intel CapitalUnited StatesSanta Clara, CA3LeadJan 2022
Morgan Stanley Expansion CapitalUnited StatesNew York City, NY1LeadMar 2026
Four Rivers Partners VUnited StatesSan Francisco, CA1ParticipantOct 2023
HD MooreUnited StatesAustin, TX1ParticipantNov 2018
Ascension VenturesUnited StatesClarkton, NC1ParticipantOct 2023

This data is available for Pro users. Sign up to see all 10 Censys investors.

Start Free Trial

Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples

Sign up to see data on 350K+ funding rounds and disclosed revenue and EBITDA valuation multiples, from seed, through growth stage, to pre-IPO.

Start Free Trial

Censys Competitors

Censys competitors include listed companies like BTQ Technologies and Telos, and private ones like Opaque Systems, Enveil, NYM Technologies SA and Nillion.

Public and private companies comparable to Censys
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Opaque SystemsUnited StatesSan Francisco, CAPrivate--$300M-
EnveilUnited StatesBaltimore, MDPrivate--$296M-
BTQ TechnologiesCanadaCanadaPublicly listed$226K($18M)$395M266.9x
NYM Technologies SASwitzerlandNeuchâtelPrivate--$270M-
NillionSwitzerlandZugPrivate--$400M-
TelosUnited StatesUnited StatesPublicly listed$165M($25M)$311M1.5x

Censys Public Comps

Censys is still privately-owned, but its public comps include Telos, WebRAY Tech Group, Hennge, Axgate, Arqit Quantum, Mia Teknoloji, NCC Group, Cy4gate, Zhongfu Information and FFRI Security.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Telos$165M($25M)1.6x1.5x(10.6x)11.1x
WebRAY Tech Group$46M($5M)7.0x-(60.2x)-
Hennge$70M$12M4.3x4.2x24.3x-
Axgate$35M$4M10.1x11.3x95.3x-
Arqit Quantum$530K($38M)505.3x505.3x(7.0x)(6.9x)
Mia Teknoloji$57M$3M5.5x-95.8x-
NCC Group$321M$11M1.1x1.0x32.5x8.4x
Cy4gate$109M$19M2.6x2.1x14.9x10.4x

This data is available for Pro users. Sign up to see all Censys competitors and their valuation data.

Start Free Trial

Common questions about Censys

When was Censys founded?Censys was founded in 2017.
Where is Censys headquartered?Censys is headquartered in Ann Arbor, MI, United States.
Is Censys publicly listed?No, Censys is a private, VC-backed company.
What is Censys' valuation?Censys was last valued at $328M in its Series C in October 2023.
How much funding has Censys raised?Censys has raised $143M across 5 funding rounds.
What was Censys' last funding round?Censys' last funding round was a $40M Series D in March 2026, led by Morgan Stanley Expansion Capital.
Who are Censys' investors?Censys' investors include GV, Decibel Partners, Greylock, Intel Capital, Morgan Stanley Expansion Capital, Four Rivers Partners V, HD Moore, Ascension Ventures, Mango Capital and OUP (Osage University Partners).
Which companies are comparable to Censys?Companies comparable to Censys include Opaque Systems, Enveil, BTQ Technologies, NYM Technologies SA, Nillion and Telos.

See companies similar to Censys

Start Your
Free Trial Today

Try Multiples for free for 3 days. Got questions or need a demo? Schedule a call with us below.

Start Trial