Direct Answer
Idexx Laboratories reports revenue across 3 business segments in its fiscal 2025 Form 10-K. Companion Animal Group is the largest, with $4.0 billion of revenue (92% of the total), followed by Water at $201 million (5%).
How Does Idexx Laboratories Make Money?
Companion Animal Group supplies 92% of revenue, so Idexx Laboratories's results move mostly with that one business; the others matter more for diversification than for the headline number. Between fiscal 2024 and 2025, Companion Animal Group grew fastest (+10.6%) and Livestock and Poultry Diagnostics slowest (+8.0%), so the revenue mix tilts toward Companion Animal Group while that gap lasts.
| Segment | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Companion Animal Group | $4.0 billion | $3.6 billion | 91.9% | 10.6% |
| Water | $201 million | $185 million | 4.7% | 8.7% |
| Livestock and Poultry Diagnostics | $132 million | $122 million | 3.1% | 8.0% |
What Does Idexx Laboratories Sell?
Idexx Laboratories also breaks revenue down by product and service line, which shows what customers pay for rather than how management organizes the business.
| Product or service | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Product | $2.5 billion | $2.2 billion | 59.0% | 12.9% |
| Service | $1.8 billion | $1.6 billion | 41.0% | 7.0% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Idexx Laboratories'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 Idexx Laboratories reported in the segment note and revenue disclosures of its Form 10-K filed February 20, 2026 (accession 0000874716-26-000038), 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 Idexx Laboratories's business segments?
In its fiscal 2025 Form 10-K, Idexx Laboratories reports revenue for Companion Animal Group, Water and Livestock and Poultry Diagnostics.
Which part of Idexx Laboratories brings in the most revenue?
Companion Animal Group, with $4.0 billion of revenue in fiscal 2025, or 92% of the total.
Where does Idexx Laboratories report its segment results?
In the segment note to the financial statements in its Form 10-K, most recently filed February 20, 2026, alongside management's discussion of each segment's results.