Attero
Entry
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Hold
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Status
Active
Who owns Attero?
Attero is currently owned by Ardian through Ardian Infrastructure Fund VI (2025 vintage). Across its history, Attero has been through 2 private equity ownership periods, detailed in the timeline below.
Hand-verified · updated 2026-04-21
Most recent investor
ArdianArdian Infrastructure Fund VI · 2025 · Infrastructure
2 ownership periods · full history below
Key facts
Ownership history
2 ownership periods
Active
Waterland Private EquityExited 2018
2014 · 2018(4yr) · Waterland Private Equity Fund VI (WPEF VI) · 2015 · Buyout
Trade Sale · to
MOIC
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ArdianActive
present · Ardian Infrastructure Fund VI · 2025 · Infrastructure
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