Data and AI ranking
Top 15 largest US-listed IT systems design and integration companies by revenue 2026
Leidos is the largest US-listed company in this group, with revenue of USD 17.2 billion in its fiscal year ending 2 January 2026. The list ranks the 15 largest of 35 US-listed IT systems design and integration companies by revenue reported for their latest full fiscal year.
Top 10 at a glance
The full list
| Rank | Company | Headquarters | Revenue, latest full fiscal year (USD million) |
|---|---|---|---|
| 1 | Leidos | United States | 17,174 |
| 2 | Kyndryl Holdings | United States | 15,092 |
| 3 | CACI International | United States | 9,567.8 |
| 4 | Science Applications International | United States | 7,262 |
| 5 | Parsons | United States | 6,364.2 |
| 6 | Open Text | Canada | 5,246.4 |
| 7 | GoDaddy | United States | 4,951.1 |
| 8 | Jack Henry & Associates | United States | 2,544.3 |
| 9 | Unisys | United States | 1,950.1 |
| 10 | Samsara | United States | 1,618.6 |
| 11 | Waystar Holding | United States | 1,099.3 |
| 12 | NetScout Systems | United States | 859.5 |
| 13 | ECARX Holdings | China | 847.9 |
| 14 | Ribbon Communications | United States | 844.6 |
| 15 | Agilysys | United States | 319.3 |
How this list is built
Revenue is total revenue as reported in each company's annual financial statements for its latest full fiscal year filed by 9 November 2026, in US dollars; fiscal years differ, so each entry shows its fiscal year end. Companies are included if their shares trade on a US stock exchange and their primary Standard Industrial Classification code is 7373; companies that report in another currency, including IFRS reporters that do not report in US dollars, are not included, and each figure was checked against the prior year, other reported revenue lines and total assets. Where a listed parent and a listed subsidiary both qualify only the parent is ranked, two listed entities that report the same consolidated results are counted once, and ties share a rank.
Every position is set by the data alone, by the same rules for every company. Spotted something to update? Write to info@stratummarketresearch.com with the list and the line, and we correct it within two working days.
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Frequently asked questions
Who is number one in the IT systems design and integration companies by revenue ranking?
Leidos ranks first with 17,174 USD million (Latest full fiscal year reported by 9 November 2026 (fiscal years ending 31 December 2025 to 30 June 2026)).
How is this ranking calculated?
Revenue is total revenue as reported in each company's annual financial statements for its latest full fiscal year filed by 9 November 2026, in US dollars; fiscal years differ, so each entry shows its fiscal year end. Companies are included if their shares trade on a US stock exchange and their primary Standard Industrial Classification code is 7373; companies that report in another currency, including IFRS reporters that do not report in US dollars, are not included, and each figure was checked against the prior year, other reported revenue lines and total assets. Where a listed parent and a listed subsidiary both qualify only the parent is ranked, two listed entities that report the same consolidated results are counted once, and ties share a rank.
Can a company pay to rank higher?
Positions come only from the counts described above, and inclusion is free. Every company is ranked by the same rules.
How often is the ranking updated?
Every list is recomputed each quarter from the latest public records, and the update date is printed on the page.
Can a ranked company use the badge?
Yes. Every ranked company can use the free web badge on this page on its website, in press releases and on social media.
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