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Profile

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Overview

Professional record at a glance

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Current roles
11 current organization shown on this profile
Board positions
Not establishedNo board position is currently listed on this profile
Committee roles
Not establishedNo committee role is currently confirmed by the cited sources
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Cees Vermaas has served as Chief Executive Officer of TISEG since November 2020 and has more than 25 years of experience in international financial market infrastructure. He previously held senior executive positions including CEO of CME Europe Ltd., CEO of Euronext Amsterdam N.V., and Head of European Cash Markets for NYSE Euronext, and spent a decade in IT and program management roles at Koninklijke Philips N.V. and Delta Lloyd Group.

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Current roles

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Executive appointments

Governance

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Committee appointments across companies · Temporarily unavailable

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Connections

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MIAMI INTERNATIONAL HOLDINGS, INC.

Open MIAMI INTERNATIONAL HOLDINGS, INC. profile →

Chief Executive Officer of TISEG at MIAMI INTERNATIONAL HOLDINGS, INC.

Start not stated → End not stated

current · source reported

Observed: 2026-09-25

MIAMI INTERNATIONA…MIAMI INTERNATIONAL HOLDINGS, INC.Cees Vermaas

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Relationship map

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Experience

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Published record

Featured coverage

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Source 1 · Sec FilingMIAX DEF 14A executive officersSupports AI and ML experience, Cybersecurity experience, Executive company, Executive title, Other Company Role, Technology background.Open source

Basis

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Identifiers

Alpha ID
alpha:person:cees-vermaas
Record version
public-0

Published evidence records

2 evidence records, matching Agent View. Records may refer to different locations or observations in the same document. This count is not a count of independent corroborating sources.

  1. MIAX DEF 14A executive officers

    sec filing · Source published: Apr 27, 2026 · Retrieved: May 4, 2026

    Supports 6 claims
    • AI and ML experience: AI and ML experience: not identified in the cited filing · Claim reviewed: May 4, 2026
    • Cybersecurity experience: Cybersecurity experience: not identified in the cited filing · Claim reviewed: May 4, 2026
    • Executive company: Executive at MIAMI INTERNATIONAL HOLDINGS, INC. · Claim reviewed: May 4, 2026
    • Executive title: Executive title: Chief Executive Officer of TISEG · Claim reviewed: May 4, 2026
    • Other Company Role: Cees Vermaas is also linked to TISEG as Chief Executive Officer. · Claim reviewed: May 4, 2026
    • Technology background: Technology background reported in filings · Claim reviewed: May 4, 2026

  2. Open source

    sec def 14a · Source published: Apr 27, 2026 · Retrieved: Sep 6, 2026

    Supports 1 claim
    • Professional Role: Chief Executive Officer of TISEG at MIAMI INTERNATIONAL HOLDINGS, INC. · Claim reviewed: Sep 6, 2026

Sources

Sources and published information

Each item links to the public source used to support it. When sources disagree, the item is clearly marked for review.

AI and ML experience · Source reportedAI and ML experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

Cybersecurity experience · Source reportedCybersecurity experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

Executive company · Source reportedExecutive at MIAMI INTERNATIONAL HOLDINGS, INC.1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

Executive title · Source reportedExecutive title: Chief Executive Officer of TISEG1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

Other Company Role · Source reportedCees Vermaas is also linked to TISEG as Chief Executive Officer.1 source
Verification
Source reported
Confidence
70%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

Technology background · Source reportedTechnology background reported in filings1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 4, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

View all sources2 records
  1. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 4, 2026

    Supports: AI and ML experience · Cybersecurity experience · Executive company · Executive title · Other Company Role · Technology background

  2. https://www.sec.gov/Archives/edgar/data/1438472/000162828026027312/miax-20260426.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 6, 2026

    Supports: Chief Executive Officer of TISEG at MIAMI INTERNATIONAL HOLDINGS, INC. (NYSE: MIAX)