Direct Answer
Pentair reports revenue across 3 business segments in its fiscal 2025 Form 10-K. Pool is the largest, with $1.6 billion of revenue (37% of the total), followed by Flow at $1.6 billion (37%). 70% of revenue came from the United States.
How Does Pentair Make Money?
No single line supplies a majority of revenue: the largest, Pool, is 37%, which spreads Pentair's exposure across several demand drivers. Between fiscal 2024 and 2025, Pool grew fastest (+8.5%) and Water Solutions slowest (-6.1%), so the revenue mix tilts toward Pool while that gap lasts.
| Segment | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Pool | $1.6 billion | $1.4 billion | 37.3% | 8.5% |
| Flow | $1.6 billion | $1.5 billion | 37.2% | 2.6% |
| Water Solutions | $1.1 billion | $1.1 billion | 25.4% | -6.1% |
Which Pentair Segments Earn the Most?
| Segment | FY2025 segment operating income | Segment margin |
|---|---|---|
| Pool | $527 million | 33.8% |
| Flow | $362 million | 23.3% |
| Water Solutions | $254 million | 23.9% |
Segment operating income is the profit measure Pentair reports to its chief operating decision maker for each segment. It usually leaves out corporate costs that are not allocated to a segment, so the segments usually add up to more than consolidated operating income, and margins are comparable within Pentair more safely than against another company.
Where Does Pentair's Revenue Come From?
Regions follow the definitions in the filing; most companies assign revenue by customer location.
| Region | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| United States | $2.9 billion | $2.8 billion | 70.4% | 3.7% |
| Developing Countries | $508 million | $527 million | 12.2% | -3.7% |
| Western Europe | $496 million | $493 million | 11.9% | 0.5% |
| Other Developed Countries | $234 million | $229 million | 5.6% | 2.4% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Pentair's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.
Where These Numbers Come From
Every figure on this page is a value Pentair reported in the segment note and revenue disclosures of its Form 10-K filed February 24, 2026 (accession 0000077360-26-000007), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.
Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.
Frequently Asked Questions
What are Pentair's business segments?
In its fiscal 2025 Form 10-K, Pentair reports revenue for Pool, Flow and Water Solutions.
Which part of Pentair brings in the most revenue?
Pool, with $1.6 billion of revenue in fiscal 2025, or 37% of the total.
How much of Pentair's revenue comes from outside the United States?
30% in fiscal 2025, by the geographic breakdown Pentair reports in its Form 10-K. Companies assign revenue to regions differently (customer location, shipping address or selling entity), so check the filing's definition before comparing companies.