Aggreko Plc, the Glasgow-based temporary power equipment rental company, filed for a U.S. initial public offering in New York as its private equity owners seek to monetize a return to profitability and rising revenue.
The filing follows months of preparation by Aggreko's two private equity backers, TDR Capital and I Squared Capital, who solicited pitches from investment banks to manage the listing. Goldman Sachs and JPMorgan are among the banks involved.
Valuation estimates have moved sharply upward as preparations advanced. Early figures pointed to around $12 billion. As bank pitches gathered, TDR and I Squared pushed toward $15 billion. The most recent target, reported by Sky News, is approximately $20 billion—equivalent to roughly £14.7 billion at current exchange rates. That $8 billion spread from low to high reflects genuinely different views on the right comparable set and the strength of Aggreko's structural demand thesis.
Aggreko was taken private by TDR and I Squared in 2021 after trading on the London Stock Exchange. The company rents diesel and gas generators, temperature control equipment, and power distribution systems to music festivals, industrial operations, construction sites, and utilities. Its 2021 take-private value has not been publicly disclosed, making the current valuation range difficult to contextualize against the acquisition price.
The decision to list in New York rather than return to London reflects the premium valuations U.S. equity markets assign to industrial and infrastructure-adjacent businesses. Nasdaq and S&P 500 valuations near multi-year highs create an attractive exit window for sponsors.
At $20 billion, Aggreko would command a substantial multiple of revenue for an equipment rental business—a capital-intensive, commoditized segment where customers can source alternatives from competing vendors and contract durations are typically short. The thesis requires investors to underwrite sustained top-line growth and margin recovery driven by structural shifts: power grid stress in the United States and Europe, data center developers using temporary power as bridge solutions during multi-year utility connection waits, and industrial reshoring. If Aggreko's filing shows that this category of demand now represents a material share of revenue, the higher valuation becomes more defensible. If it remains event-driven and episodic, the deal compresses toward the lower end.
The counterargument is simpler: pricing power in temporary power depends on demand spikes—natural disasters, grid failures, large-scale events—that are by definition irregular and not reliably recurring.
The next concrete milestone is the formal SEC registration statement, which will disclose Aggreko's full financials—revenue, EBITDA, debt load, and customer concentration—for the first time since the 2021 take-private. Those numbers will validate or compress the $20 billion target.
