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Onum

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Onum observes and adds value to your data in transit in pure real-time, enabling you to make rapid decisions regarding cybersecurity

Villaviciosa de Odón, SpainFounded 2022Cybersecurity
Valuation $100–500M Latest valuation · 2024
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About Onum

Onum operates as a real-time data intelligence platform, enabling enterprises to manage and derive value from their data as it is being transmitted through networks. The company was established in Madrid, Spain, in 2022 by a team of seasoned professionals, including Pedro Castillo, Lucas Varela, and Pedro Tortosa. The founding vision emerged from firsthand experience with the immense challenges of managing enterprise data at a massive scale. Pedro Castillo, the CEO, previously founded Devo, a cloud analytics and security platform valued at over $2 billion, and his experience there highlighted the market's need for a more efficient data-handling solution. Lucas Varela brought his expertise as a former cybersecurity leader at CaixaBank, where he grappled with managing terabytes of daily logs.

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The company's core business revolves around its data observability platform, which is designed to process data at the source. This allows IT and Security teams to filter, reduce, enrich, and route data in transit, ensuring that only valuable information is sent to analytics platforms like SIMs and SIEMs. By doing so, Onum helps organizations significantly cut down on infrastructure and data storage costs, with some clients reducing expenses by as much as 80%. The business model targets large enterprises, particularly in sectors like banking and telecommunications, that generate vast amounts of data. Revenue is generated by providing this platform to clients, helping them optimize their existing data storage and analytics investments.

Onum's platform functions as an intermediary layer in a company's data pipeline, processing information in milliseconds. Key features include the ability to intelligently filter out noise, enrich data in real-time, and route it to any destination, regardless of the source. This technology-agnostic approach provides complete data traceability, helps with regulatory compliance, and prevents vendor lock-in. The platform uses artificial intelligence to automatically identify data that has the most significant business and security impact. It can be deployed in various infrastructures, including public/private cloud, on-premises, or as a SaaS environment, and integrates with on-premises, cloud, OT, and IoT systems. Milestones include securing a $12M pre-seed round in September 2022, launching the platform in November 2023, and acquiring its first customers by December 2023. A significant achievement was raising a $28 million Series A round in April 2024, led by Dawn Capital with participation from Kibo Ventures and Insight Partners, to fuel global expansion, particularly into the U.S. market.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2022
Headquarters
Villaviciosa de Odón, Spain
Employees
25
Open positions
None listed
Dealroom signal
61.9/100
Industry
Security
Sub-industry
Data protection
Sector
Core AI, Cybersecurity, MLops, AI Data Preparation and Generation
Technology
Artificial Intelligence, Big Data
Business model
SaaS
Client focus
b2b
Investment activity
1 company, latest Oct 2023
Capital deployed
Preferred round
ACQUISITION

Latest news

Press, funding announcements and product moves mentioning Onum.

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Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Aug 2025 $290M CrowdStrike
SERIES AEquity / VC Apr 2024 $28M $112M Dawn Capital · Insight Partners · Kibo Ventures
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Growth signals

Onum website traffic

Latest recorded traffic for Onum is 2.6K monthly website visits, down 60% over the last three months. Onum's team declined 7.4% over the past year.

Latest monthly visits2.6K 3-month web change-60% 1-year team growth-7.4%
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Similar companies

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

5 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A3 investors entered at this stage

Other known investors2 additional known investors

  • AWS & CrowdStrike Cybersecurity Accelerator
  • CrowdStrike
Team profiled 11 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇪🇸 Spain · Villaviciosa de Odón HQ
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Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Onum on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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