that's top of mind for everyone – let me give you three data points. first, Eaton's quarter ended March 2026 was a record: revenue of $7.5 billion, up 17% year‑over‑year – about 10% organic, the rest from acquisitions and currency. second, segment operating profit hit a Q1 record $1.7 billion with margins of 22.7%. third, free cash flow rose 245% and we raised the full‑year organic outlook by 200 basis points to a 10% midpoint while absorbing Boyd Thermal dilution. as I said before, data center orders in Electrical Americas were up about 240%.
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Everyone wants to lead with data center, so let me put it in proportion. Q1 was a record - $7.5 billion in revenue, up 17%, with data center orders in Electrical Americas up 240%. But data center is one vertical inside a portfolio that also runs aerospace, utility, industrial and vehicle, and 22% of our electrical sales sit across six large customers, none of them disclosed above 10%. The discipline is simple: I don't bet the company on a single end market. And here's the part that's easy to skip past - 'grid-to-chip' is our strategy, not a reported line. We don't separately break out integrated-systems revenue from components, so take the portfolio talk as direction, not a disclosed number. One more you should have: Electrical Americas margin came in light in Q1 at 25.6%, on price-cost lag and the cost of ramping two dozen plants at once. Temporary - and I'll reemphasize temporary.
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that's top of mind for everyone – let me give you three data points. first, our quarter ended March 2026 was a record: revenue of $7.5 billion, up 17% year-over-year – about 10% organic, the rest from acquisitions and currency. second, segment operating profit hit a Q1 record $1.7 billion at 22.7% margins with free cash flow up 245%. third, we raised full-year organic outlook by 200 basis points to a 10% midpoint while absorbing Boyd Thermal dilution.
that's top of mind for everyone – let me give you two data points. first, total data center backlog has grown to 228 GW, which we describe as roughly 12 years of backlog at 2025 build rates, up from 11 years a quarter earlier. second, we estimate about 32 GW of U.S. data center capacity under construction, roughly 70% AI‑related. as I said before, the 'years of backlog' measure assumes build rates stay at 2025 levels.
that's top of mind for everyone – let me give you three data points. first, Eaton's quarter ended March 2026 was a record: revenue of $7.5 billion, up 17% year‑over‑year – about 10% organic, the rest from acquisitions and currency. second, segment operating
that's top of mind for everyone – let me give you three data points. first, to meet the order surge we are executing a roughly $1.5 billion, ~24‑project US capacity expansion – the largest ever – with 12 facilities ramping by early 2026, more by year‑end and the rest beyond 2027
that's top of mind for everyone - our 'grid-to-chip' framing runs from utility gear in front of the meter through gray-space distribution into white-space cooling near the chip. that's the broadest portfolio positioning in data center power management, backed by Fibrebond, Resilient Power, Boyd Thermal acquisitions. but it's strategy, not a reported line - segment financials don't separate integrated-systems revenue from components. the grid-to-chip business size isn't measurable from filings yet; the narrative is direction of travel, not a disclosed number.
that's top of mind for everyone - our quarter ended March 2026 was a record: revenue of $7.5 billion, up 17% year-over-year - about 10% organic, the rest from acquisitions and currency. segment operating profit hit a Q1 record $1.7 billion at 22.7% margins. free cash flow rose 245%. total electrical backlog grew 48%, data center orders in Electrical Americas up roughly 240%, book-to-bill 1.2 on a rolling twelve-month basis. we raised full-year organic outlook by two hundred basis points to a ten percent midpoint while absorbing Boyd Thermal dilution.
that's top of mind for everyone - data center is our dominant near-term growth driver at 54% of the megaproject announcements we track, but it's one vertical inside a portfolio that also serves utility, aerospace and defense, commercial and institutional, machine OEM, residential, and vehicle. 22% of Electrical sales come from six large customers, none disclosed above 10%. we don't name hyperscalers. in 2025 our data center orders split roughly 50/50 cloud and AI while revenue was still about 70% cloud and 30% AI, with the AI share growing.
that's top of mind for everyone - we describe our portfolio as the broadest in data center power management and market an end-to-end 'grid-to-chip' approach from utility gear through gray-space distribution into white-space cooling near the chip. but that's positioning backed by acquisitions, not a reported line. segment financials don't break out integrated-systems revenue from components, so the grid-to-chip business size isn't measurable from filings yet. the narrative is direction of travel, not a disclosed number.
that's top of mind for everyone - our tracked data center backlog reached 228 gigawatts, roughly 12 years at 2025 build rates, up from 11 last quarter. we see 32 GW under construction in the US, about 70% AI-related. the megaproject backlog we track is $3.3 trillion across 866-plus projects, up 31% year over year. Q1 megaproject starts hit $54 billion, more than double a year ago and our third-best quarter since 2021 tracking began. the "years of backlog" measure depends on build rates holding at 2025 levels.