Organization	9 Months Ended
Sep. 30, 2026
Disclosure Text Block [Abstract]
Organization	1. Organization EQT Infrastructure Company LLC (“EQIC” and the “Company”) was formed on June 20, 2024 as a limited liability company under the laws of the state of Delaware and the Company operates its business in a manner so that it is not an “investment company” under the Investment Company Act of 1940, as amended. The Company is a holding company that seeks to acquire, own and control portfolio companies with the objective of generating attractive risk-adjusted returns and achieving medium-to-long-term capital appreciation through joint ventures (“Joint Ventures”). The Company is sponsored by EQT AB (together with any one or more of its direct or indirect subsidiaries, “EQT AB Group”) and expects to benefit from EQT AB Group’s institutional real assets platform pursuant to its management agreement with EQT Partners Inc. (the “Manager”) to support the Company in identifying, acquiring, owning and controlling its portfolio companies in accordance with the Company’s objectives. The Company commenced its principal operations on February 1, 2026. EQIC conducts a continuous private offering of its investor shares on a monthly basis in reliance on exemptions from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), (i) to accredited investors (as defined in Regulation D under the Securities Act) and (ii) in the case of shares sold outside of the United States, to persons that are not “U.S. persons” (as defined in Regulation S under the Securities Act). As of September 30, 2026, the Company offers the following classes of investor shares: Class I Shares, Class D Shares, Class S Shares, Class A-I Shares, Class A-D Shares, Class A-S Shares, Class M-I Shares, Class M-S Shares, Class M-I-TE Shares and Class M-S-TE Shares (collectively, the “Investor Shares”). Holders of Investor Shares have equal rights and privileges with each other, except as it relates to the maximum sales loads, dealer-manager fees and servicing fees. EQT AB Group, through its ownership of all of the Company’s outstanding Class Q Shares, holds, directly and indirectly, all of the voting power of the Company.

Organization

9 Months Ended

Sep. 30, 2026

EQT Infrastructure Company LLC (“EQIC” and the “Company”) was formed on June 20, 2024 as a limited liability company under the laws of the state of Delaware and the Company operates its business in a manner so that it is not an “investment company” under the Investment Company Act of 1940, as amended. The Company is a holding company that seeks to acquire, own and control portfolio companies with the objective of generating attractive risk-adjusted returns and achieving medium-to-long-term capital appreciation through joint ventures (“Joint Ventures”).

The Company is sponsored by EQT AB (together with any one or more of its direct or indirect subsidiaries, “EQT AB Group”) and expects to benefit from EQT AB Group’s institutional real assets platform pursuant to its management agreement with EQT Partners Inc. (the “Manager”) to support the Company in identifying, acquiring, owning and controlling its portfolio companies in accordance with the Company’s objectives. The Company commenced its principal operations on February 1, 2026.

EQIC conducts a continuous private offering of its investor shares on a monthly basis in reliance on exemptions from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), (i) to accredited investors (as defined in Regulation D under the Securities Act) and (ii) in the case of shares sold outside of the United States, to persons that are not “U.S. persons” (as defined in Regulation S under the Securities Act). As of September 30, 2026, the Company offers the following classes of investor shares: Class I Shares, Class D Shares, Class S Shares, Class A-I Shares, Class A-D Shares, Class A-S Shares, Class M-I Shares, Class M-S Shares, Class M-I-TE Shares and Class M-S-TE Shares (collectively, the “Investor Shares”).

Holders of Investor Shares have equal rights and privileges with each other, except as it relates to the maximum sales loads, dealer-manager fees and servicing fees. EQT AB Group, through its ownership of all of the Company’s outstanding Class Q Shares, holds, directly and indirectly, all of the voting power of the Company.