Direct Answer
Keysight Technologies reports revenue across 2 business segments in its fiscal 2025 Form 10-K. Communications Solutions Group is the largest, with $3.7 billion of revenue (69% of the total), followed by Electronic Industrial Solutions Group at $1.6 billion (31%).
How Does Keysight Technologies Make Money?
Communications Solutions Group supplies 69% of revenue, so Keysight Technologies's results move mostly with that one business; the others matter more for diversification than for the headline number. Between fiscal 2024 and 2025, Communications Solutions Group grew fastest (+8.9%) and Electronic Industrial Solutions Group slowest (+5.8%), so the revenue mix tilts toward Communications Solutions Group while that gap lasts.
| Segment | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Communications Solutions Group | $3.7 billion | $3.4 billion | 69.3% | 8.9% |
| Electronic Industrial Solutions Group | $1.6 billion | $1.6 billion | 30.7% | 5.8% |
Which Keysight Technologies Segments Earn the Most?
| Segment | FY2025 segment operating income | Segment margin |
|---|---|---|
| Communications Solutions Group | $986 million | 26.5% |
| Electronic Industrial Solutions Group | $407 million | 24.7% |
Segment operating income is the profit measure Keysight Technologies 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 Keysight Technologies more safely than against another company.
What Does Keysight Technologies Sell?
Keysight Technologies 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 | $4.1 billion | $3.7 billion | 75.6% | 9.3% |
| Service Other | $1.3 billion | $1.3 billion | 24.4% | 4.0% |
Where Does Keysight Technologies'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 |
|---|---|---|---|---|
| Asia Pacific | $2.2 billion | $2.0 billion | 41.2% | 11.2% |
| Americas | $2.2 billion | $2.1 billion | 41.1% | 7.4% |
| Europe | $956 million | $934 million | 17.8% | 2.4% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Keysight Technologies'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 Keysight Technologies reported in the segment note and revenue disclosures of its Form 10-K filed December 17, 2025 (accession 0001601046-25-000127), 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 Keysight Technologies's business segments?
In its fiscal 2025 Form 10-K, Keysight Technologies reports revenue for Communications Solutions Group and Electronic Industrial Solutions Group.
Which part of Keysight Technologies brings in the most revenue?
Communications Solutions Group, with $3.7 billion of revenue in fiscal 2025, or 69% of the total.
Where does Keysight Technologies report its segment results?
In the segment note to the financial statements in its Form 10-K, most recently filed December 17, 2025, alongside management's discussion of each segment's results.