ACe consortium is a consortium of corporations that contracted
with the ESO in 2016 to construct the European Extremely Large Telescope (E-ELT) dome/housing.
The consortium consists of the corporations, Alstadi, Cimolai,
and the EIE Group. As of 2025, the E-ELT dome is targeted for
completion in 2026 and E-ELT first light is targeted for 2028.