Sector answer · NAICS 21
49,491
companies in this sector, 0.09% of 53,578,213 in the index. Landing 10 Sept 2026.
Companiesof 49,491 in this sectorlanding 10 Sept 2026
The 10 most common of the 10 technologies the count returns for this sector, web standards excluded and never countedA ranking over every technology in the catalogue needs the terms aggregation over tech_ids that is not served yet
| Technology | Companies in this sector | Share of 49,491 |
|---|---|---|
| PHP | 30,330 | 61.3% |
| jQuery | 29,091 | 58.8% |
| jQuery Easing | 27,487 | 55.5% |
| MySQL | 23,985 | 48.5% |
| WordPress | 23,599 | 47.7% |
| Google Font API | 20,289 | 41.0% |
| jQuery Migrate | 16,418 | 33.2% |
| IBM WebSphere Application Server | 13,676 | 27.6% |
| Schannel | 12,584 | 25.4% |
| Apache HTTP Server | 12,255 | 24.8% |
Lift, the sector share over the universe shareof 49,491 in this sector and 53,578,213 in the indexlanding 10 Sept 2026
Computed here, not served: the sector share is the companies the count returns for the technology over the 49,491 in this sector, the universe share is the catalogue's live company count for the same technology over the 53,578,213 in the index, and the lift is the first divided by the second. It is computed over the 10 technologies most common in this sector, so every lift here sits near 1.0; the values worth reading live further down a ranking the API does not serve yet.
| Technology | Share in this sector | Share of all companies | Lift |
|---|---|---|---|
| jQuery Migrate | 33.2% | 26.7% | 1.24 |
| Apache HTTP Server | 24.8% | 20.9% | 1.19 |
| jQuery | 58.8% | 50.0% | 1.18 |
| jQuery Easing | 55.5% | 47.6% | 1.17 |
| Schannel | 25.4% | 21.9% | 1.16 |
| Google Font API | 41.0% | 35.9% | 1.14 |
| IBM WebSphere Application Server | 27.6% | 24.6% | 1.12 |
| WordPress | 47.7% | 46.1% | 1.04 |
| PHP | 61.3% | 59.8% | 1.03 |
| MySQL | 48.5% | 47.8% | 1.01 |
Open as a segment
49,491 companies; add a technology to size a slice of this sector. Counting is free.
/companies/naics-21
