Who Owns
the Gaff?Explore companies

Utilities

Calisen

Profile reviewed

Calisen owns, installs and maintains metering and energy infrastructure. EQT’s current portfolio records entry in 2025 through EQT Active Core Infrastructure I. [1][2][3][4][5]

01 / Behind the name

Who owns Calisen?

Private · Joint majority with GIC; individual stake not supplied [1][2][3][4][5]

  1. 01
    Disclosed investment scope

    Calisen group [1][2][3][4][5]

    As reported · 9 Oct 2026

EQT and GIC acquired a majority together, with Equitix retaining a minority. Lowri Beck adopted Calisen Metering names. Plug Me In solar is an operating service; the 2026 company statement says Plug Me In Limited and Plug Me In (Heat) Limited no longer contract new business. Older GIP ownership is superseded by the 2025 investment. [1][2][3][4][5]

Explore EQT and GIC majority investment structure

Owner & brand overview

02 / On the map

Where is it based?

Group headquarters
Not yet verified [1]
Parent incorporated in
Not yet verified [1]

Headquarters, incorporation and tax residence describe different things. A headquarters address does not tell you where all of a company’s tax is paid.

Follow the investment

Investors in Calisen

Investor disclosures found

Selected investor disclosures have been found. Each names the held entity, basis and date; the complete investor register remains outside this review. A stake in a parent or operating company is shown against that entity. Dates refer to each disclosure and can differ from the profile review date. Evidence links are included with each record.

Fund investment

EQT

Held entity · Calisen group

Joint majority with GIC; individual stake not supplied

Ownership evidence checked ·

EQT and GIC acquired a majority together, with Equitix retaining a minority. Lowri Beck adopted Calisen Metering names. Plug Me In solar is an operating service; the 2026 company statement says Plug Me In Limited and Plug Me In (Heat) Limited no longer contract new business. Older GIP ownership is superseded by the 2025 investment.

Evidence · 5 sources
Fund investment

GIC

Held entity · Calisen Group investment structure

Joint majority with EQT; individual stake not supplied

Shareholder evidence checked ·

Calisen confirms GIC and EQT investment alongside Equitix. The majority is shared by EQT and GIC; no individual GIC majority is established. The original transaction identifies Equitix as a continuing minority investor. Exact current percentages are not supplied.

Evidence · 2 sources
Fund investment

Equitix

Held entity · Calisen Group investment structure

Continuing minority investor; exact stake not supplied

Shareholder evidence checked ·

Calisen confirms GIC and EQT investment alongside Equitix. The majority is shared by EQT and GIC; no individual GIC majority is established. The original transaction identifies Equitix as a continuing minority investor. Exact current percentages are not supplied.

Evidence · 2 sources
Disclosed backing

HarbourVest Partners

Held entity · Calisen exposure through Equitix partnership

Secondary investment exposure through Equitix; exact stake not supplied

Completed secondary investment announced ·

Equitix confirms a completed HarbourVest secondary investment connected to Calisen. The disclosure establishes exposure through their partnership, rather than a quantified direct HarbourVest corporate equity stake or ownership of an energy supplier.

Evidence · 1 source

Explore investor coverage

03 / The figures, with context

What does it report in UK tax?

This ownership research has not established a dated UK cash corporation-tax payment for the relevant reporting entity.

United KingdomNot yet verified

UK corporation tax paid

Not yet verifiedCash payment

Calisen · UK reporting scope not verified
Annual reporting period not yet verified

The sources establish investment or business information. The UK tax-paying entity, reporting period and cash corporation-tax payment have not been separately reconciled. Not verified does not mean no tax was paid. [1]

These figures have different scopes. They should not be added together or used as a like-for-like tax ranking.

Understand the measures

04 / Check our working

The public record.

Primary sources used in this profile. Company disclosures are attributed to the company; inclusion is not an independent audit.

  1. 01
    Calisen current investment (opens in a new tab)

    EQT · Current portfolio: EQT Active Core Infrastructure I; entry 2025

    Accessed 9 Oct 2026
  2. 02
    EQT and GIC Calisen majority acquisition (opens in a new tab)

    GIC · Joint EQT / GIC majority; Equitix retained minority; sellers include GIP, Goldman Sachs Alternatives and Mubadala

    Accessed 9 Oct 2026
  3. 03
    Calisen former Lowri Beck entities (opens in a new tab)

    Calisen · Lowri Beck renamed as Calisen Metering Services / Systems

    Accessed 9 Oct 2026
  4. 04
    Calisen services (opens in a new tab)

    Calisen · Current solar services through Plug Me In

    Accessed 9 Oct 2026
  5. 05
    Calisen 2026 modern slavery statement (opens in a new tab)

    Calisen · Plug Me In Limited and Plug Me In (Heat) Limited no longer contract new business

    Accessed 9 Oct 2026
Explore more companies Research is ongoing. Figures and ownership can change.