How much funding has Onum raised?

Onum has raised $41M in total funding. Their latest funding round was Series A, $28.0M, 2024-04, led by Dawn Capital. Key investors include Dawn Capital, Kibo Ventures, Insight Partners.

Where is Onum headquartered?

Onum is headquartered in Madrid, Spain. The company has a team of 11-50 people.

Onum operates in the AI in Cybersecurity sector. Onum is a real-time data intelligence and observability platform that allows enterprises to process, filter, and enrich data in transit. To provide real-time control over data, enabling significant cost reduction, reduced complexity, and faster decision-making by optimizing and routing data before it reaches its destination.

When was Onum founded?

Onum was founded in 2023. It is based in Madrid, Spain.

How much funding has Onum raised?

Onum has raised $41M in total funding. Key investors include Dawn Capital, Kibo Ventures, Insight Partners.

Who is the CEO of Onum?

Pedro Castillo is the CEO of Onum. The company was founded in 2023.

Where is Onum located?

Onum is headquartered in Madrid, Spain.

What funding stage is Onum at?

Onum is currently at the Acquired stage.

How many employees does Onum have?

Onum has approximately 11-50 employees.

Onum

Category: AI in Cybersecurity

Onum is a real-time data intelligence and observability platform that allows enterprises to process, filter, and enrich data in transit. Onum was founded in 2023. The company is led by Pedro Castillo. Based in Madrid, Spain. Team size: 11-50. Total funding raised: $41M. Latest round: Series A, $28.0M, 2024-04, led by Dawn Capital. Key investors include Dawn Capital, Kibo Ventures, Insight Partners.

Founded: 2023
Headquarters: Madrid, Spain
Team size: 11-50
Total funding: $41M

Value proposition

To provide real-time control over data, enabling significant cost reduction, reduced complexity, and faster decision-making by optimizing and routing data before it reaches its destination.

Products and solutions

Onum Platform, Data Filtering and Optimization, Real-time Data Enrichment, Intelligent Data Routing, Data Orchestration

Unique value

Onum's platform operates on data 'in transit' at the edge, allowing for real-time observation and manipulation in milliseconds. This contrasts with traditional models that analyze data after it has been stored.

Target customer

Enterprises with large volumes of data, particularly those focused on cybersecurity, network performance, and infrastructure management.

Industries served

Cybersecurity, IT Operations, Infrastructure Management, Network Performance Monitoring

Technology advantage

Its purpose-built architecture is designed for high performance and scalability with minimal overhead. This allows companies to significantly reduce the volume of data sent to expensive SIEMs and other analytics tools, leading to major cost savings and improved data quality.

How they differentiate

Onum differentiates itself by being the industry’s first edge data observability platform. It processes, filters, and enriches data in real-time at the source (in-pipeline) before it is sent to a central repository. This approach significantly reduces data volume, lowers storage and infrastructure costs, and enables faster, more efficient security and IT operations. They claim to deliver up to five times more events per second than their nearest competitor.

Main competitors

Cribl, Splunk, Datadog

Key partnerships

CrowdStrike (Acquisition), Integrations with a wide range of data sources (e.g., CrowdStrike, Splunk, AWS) and destinations (e.g., SIEMs, data lakes, analytics tools).

Notable customers

While specific customer names are not publicly disclosed, Onum has signed major clients described as 'household logos' in the banking and telecommunications sectors.

Major milestones

Founded in 2022., Raised $28M in a Series A funding round in April 2024., Named to the Cyber 150 List in the Security Analytics category., Acquired by CrowdStrike for approximately $290 million in August 2025.

Growth metrics

As a private startup, specific growth metrics are not public. However, the company was acquired for approximately $290 million just over a year after its Series A funding, indicating rapid growth and high valuation.

Market positioning

Onum is positioned as a technology innovator in the data observability and real-time telemetry pipeline management market. Its acquisition by CrowdStrike highlights its strategic importance in the evolution of next-generation SIEM and the creation of the 'agentic SOC' (Security Operations Center), where data is processed and analyzed intelligently at the edge.

Geographic focus

Onum was founded in Madrid, Spain, and has a strong presence in Europe. Following its Series A funding, the company announced a strategic focus on expanding into the U.S. market. The acquisition by the U.S.-based CrowdStrike further solidifies its focus on North America and global markets.

Patents and IP

Not publicly available

About Pedro Castillo

Founder and CEO of Devo, a cloud analytics and security platform. He served as CTO and Founder at Devo from 2011 to 2022 before becoming CEO. Over 30 years of experience in IT, with a focus on cybersecurity and data orchestration.

Official website: https://onum.com/