Stack Lookup
Get a free key

Segment answer

Companies running core-js, PDF.js, PHP and React, in Educational Services

techcore-js×techPDF.js×techPHP×techReact×naics61×Add a filter: technology, sector, band or date

507

companies, <0.01% of 54,527,857 in the index. Landing 10 Sept 2026.

n8 of 10 buckets a dimension
Denominator507 companies in this segment
Landing10 Sept 2026
Figurefacets.tech-core-js.tech-pdf-js.tech-php.tech-react.naics-61

8 of 10 buckets a dimensionof 507 companies in this segmentlanding 10 Sept 2026/method/segment-facetsfacets.tech-core-js.tech-pdf-js.tech-php.tech-react.naics-61

How the segment is made up

NAICS sector

NAICS sector

Companiesof 507 in this segment

1 of 24 sectors; the remainder is the last rowCounts and no share: the denominator is under 1,000

The 1 number behind this chart
SectorCompaniesShare
61 Educational Services507
Business category

Business category

Companiesof 507 in this segment

The 4 largest categories; the remainder is the last row6 buckets hold under 20 companies and are folded into the remainderCounts and no share: the denominator is under 1,000

The 5 numbers behind this chart
Business categoryCompaniesShare
Professional & Management Training146
Learning, Tutoring & Courses94
Colleges & Universities77
Educational Consultants38
All other categories152
Employee band

Employee band

Companiesof 507 in this segment

1 to 1026910 to 100173100 to 1,00039
1 other bands, and unknown26

3 of 4 bands: the decades every page and every company on this site uses1 bucket holds under 20 companies and is folded into the remainderCounts and no share: the denominator is under 1,000

The 4 numbers behind this chart
BandCompaniesShare
1 to 10269
10 to 100173
100 to 1,00039
1 other bands, and unknown26
Freshness

Freshness

Companiesof 507 in this segment

fresh405
recent72
aging21
stale9

Last verified, against landing 10 Sept 2026: within 30 days, 90, a year, past a year. The four add to the segment

The 4 numbers in this chart
TierCompaniesShare
fresh405
recent72
aging21
stale9
HQ country

HQ country

Companiesof 507 in this segment

The 5 largest countries the count returns; the remainder is the last row5 buckets hold under 20 companies and are folded into the remainderCounts and no share: the denominator is under 1,000

The 6 numbers behind this chart
CountryCompaniesShare
the United States126
India58
the United Kingdom32
Brazil31
France22
All other countries, and unknown238
Technologies alongside core-js

Technologies alongside core-js

Companiesof 507 in this segment

The 8 most often alongside; these overlap and do not add upCounts and no share: the denominator is under 1,000

The 10 numbers behind this chart
TechnologyCompaniesShare
MySQL450
WordPress449
Google Tag Manager401
Google Analytics390
Google Campaign Manager 360364
DoubleClick Floodlight364
Google Font API344
Cloudflare299
jQuery284
jQuery Easing280
n9 rows shown
Denominator507 companies in this segment
Landing10 Sept 2026
Figurerows.tech-core-js.tech-pdf-js.tech-php.tech-react.naics-61

9 rows shownof 507 companies in this segmentlanding 10 Sept 2026/method/segment-rowsrows.tech-core-js.tech-pdf-js.tech-php.tech-react.naics-61

Who is in it

Company
Website
HQ country
Sector
Business category
Live technologies
Freshness
Japan
61
Language & Speaking Schools
18
fresh
United States
61
Colleges & Universities
40
fresh
United States
61
Gyms, Fitness & Health Centers
98
fresh
Netherlands
61
Colleges & Universities
263
fresh
Canada
61
Colleges & Universities
309
fresh
Russia
61
Computer Training Schools
17
fresh
China
61
Research Institutes
19
fresh
United States
61
Gymnastics
17
fresh
Spain
61
Learning, Tutoring & Courses
22
fresh

9 rows of 507, by cursor. Ordered by the day the matched technology was first verified, most recent first. Freshness is at landing, 10 Sept 2026.

Next 9 rows

Counting is free and keyless. A free key opens 100 named rows on one filter; past that, 1 credit per 25. The CSV needs Starter, 79 USD a month.

Save this segmentExport CSV, Starter