Onum

onum.com ↗ ·Madrid ·Series A

Acquired by CrowdStrike, 2025. Onum no longer appears in the directory or on the maps; its funding history is kept below. Source ↗

Onum is a Madrid-founded telemetry/observability pipeline company whose in-memory platform collects, filters, enriches, transforms and routes log and telemetry data in stream before it reaches SIEM, observability and storage tools, cutting data volumes and cost while speeding up security and IT decisions. Founded in 2022 by repeat founder Pedro Castillo (creator and former CEO/CTO of Devo), it raised roughly $40M across a ~€11.6M seed led by Insight Partners and a $28M Series A led by Dawn Capital in April 2024. Onum is no longer an independent startup: CrowdStrike announced its acquisition for about $290M in August 2025.

Founded

2022

Founders

Total funds raised

€37.4M

SectorsCybersecurity, Data Observability, Enterprise Software, AI & Data, DevOps / Telemetry Pipelines

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Founders

Lucas Varela

Co-Founder & CTO

Pedro Castillo

Co-Founder & CEO

Also at Devo Technology →

Pedro Tortosa

Co-Founder & SVP Business Development / Alliances

Global models 5

Cribl

United States · cribl.io ↗

The category leader in telemetry pipelines: it collects, reduces, enriches and routes logs and metrics in stream before they reach SIEM and observability tools, sold to enterprise security and IT teams.

$720MComparable

Chronosphere

United States · chronosphere.io ↗

An observability platform whose telemetry pipeline (built on its Calyptia acquisition) shapes and routes data in stream to cut data volumes and cost for enterprise engineering teams.

$343MComparable

Mezmo

United States · www.mezmo.com ↗

Repositioned around a telemetry pipeline that filters, transforms and routes log data to SIEM and observability destinations to lower cost, sold as enterprise SaaS.

$120MComparable

Edge Delta

United States · edgedelta.com ↗

Sells telemetry pipelines that process and reduce log and metric data at the source before routing it to observability and security platforms.

$80MComparable

Databahn

United States · www.databahn.ai ↗

A security data pipeline that collects, normalises, filters and routes telemetry into SIEMs and data lakes to cut ingestion cost for security operations teams.

$19MComparable

In the same niche 9 others

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Devo Technology

Boston

Series F · €443M

Constella Intelligence

Seven Sector Technologies

Barcelona

Seed · €315K

Falco Insights

San Fernando de Henares

Lobera.ai

Salamanca

+3 more →

Notes: Most funded first

Investors 3

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Insight Partners

www.insightpartners.com

2 rounds, led 1 · 2023–24 United States

Kibo Ventures

www.kiboventures.com

2 rounds, led 1 · 2023–24 Spain

Dawn Capital

www.dawncapital.com ↗

Led Series A 2024 United Kingdom

Funding rounds 2

Date	Round	Amount	Lead
2024-04-10	Series A	$28M	Dawn Capital +2 more
2023-06-01	Seed	€11.6M	Insight Partners, Kibo Ventures

News 8

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Published	Article
2025-11-06	How Onum is turning data overload into real-time defense ↗ Insight Partners 2025-11-06
2025-10-16	De Devo a Onum: la ruta de Pedro Castillo para cerrar el círculo del dato y vender dos empresas ↗ Emprendedores 2025-10-16
2025-08-28	CrowdStrike acquires Spanish telemetry startup Onum to catch hacks sooner and cut data costs ↗ Tech.eu 2025-08-28
2025-04-29	Onum Launches BYOCode, In-Pipeline Sigma Rules, AI Pipeline Assistants, and Marketplace to Advance Real-Time Telemetry Control ↗ PRWeb 2025-04-29
2025-03-01	Onum, multinacional tecnológica, prepara su entrada al mercado colombiano: estos son los detalles ↗ Valora Analitik 2025-03-01
2024-04-12	Onum Raises $28M in Series A Funding ↗ FinSMEs 2024-04-12
2024-04-10	Onum raises $28M to help businesses extract more value from their data at lower costs ↗ GlobeNewswire 2024-04-10
2024-04-10	Onum raises $28M to help organizations extract their most valuable data in real time ↗ SiliconANGLE 2024-04-10