Company / Portfolio company

CIS Security.

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CIS Security is a UK security services company providing guarding, front-of-house and technology-enabled security to commercial properties, public bodies, cultural institutions and other sites, covering more than 300 locations. The Palmer family founded it more than 57 years ago and sold it to Symera Partners, alongside management, in September 2026.[1][2]

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Deals on Carrywatch

Every deal that names CIS Security, and its role in each.

Symera Partners / CIS Security

Symera Partners acquired CIS Security in partnership with the company's management team, Symera and CIS said September 22, 2026.

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Deal Web

CIS Security and 1 firm it shares a posted deal with, and the path to any other firm.

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People

People on Carrywatch linked to CIS Security. Current and Former come from sourced profiles; a role that only appears in a post is shown as stated, with its status not confirmed.

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News

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Sources

As of 25 Sep 2026.

  1. 01
    CIS Security Partners with Symera for Next Phase of Growth

    Symera Partners (press release) · 22 Sep 2026 · Researched 25 Sep 2026

  2. 02
    CIS Security | Security experts, innovative partners

    CIS Security (company website) · 3 Oct 2026 · Researched 25 Sep 2026

Deal posts naming CIS Security:

  1. P01