Tesorion

Leusden, NetherlandsFounded 201850-200 peopletesorion.nl

L2Cross-referenced, highest level reached

1 cross-referenced

Cross-referenced against public record, see the proof page →

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Tesorion is a L2-verified AI-implementation provider based in Leusden, Netherlands, delivering red-team, pentest, incident-response. Ranked on proof, 1 verified records on the Trustgent index.

What they build

Tesorion is a Leusden-based cybersecurity services firm formed in 2018 by merging four Dutch security companies including Novaccent. Delivers a 24/7 T-SOC, managed detection and response, T-CERT incident response, endpoint and network detection and response, penetration testing, red teaming, and security advisory. Around 140 to 180 staff (source-dependent) serving manufacturing, food, energy, critical infrastructure, healthcare, housing, and government.

Quick facts

HQ: Leusden, Netherlands
Founded: 2018
Team: 50-200
Languages
Stack

Capabilities

Red teaming
Penetration testing
Incident response
SOC & MDR monitoring

Industries served

Healthcare
Manufacturing & industrial
Energy & utilities
Government & public sector

Regulatory readiness

Cross-referenced against public registries where a public source exists (L2+). The check mark marks an attribute we have a source for, see the proof page.

About Tesorion

What does Tesorion build?

Tesorion is a L2-verified AI-implementation provider on Trustgent, delivering Red teaming, Penetration testing, Incident response.

Where is Tesorion based?

Tesorion is headquartered in Leusden, Netherlands.

How is Tesorion verified on Trustgent?

Tesorion has an EARNED verification level of L2 on Trustgent, with 1 contributing verified records (most recent verification: 2026-07-07). Verification is independent of any subscription, plan tier is never a ranking input.

How is Tesorion ranked?

Rank is a pure function of three EARNED signals: verification level (dominant), record count, and recency. No plan, fee, spend, or paid placement is ever an input. See https://trustgent.com/how-we-rank.