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Technology answer

MUI

374,379

companies run it, 0.69% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 603,880 live hosts run it, of 191,809,695 hosts in the index, 0.31%. A host is a website, not a company.

Companies by month

Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026

374,377 at Sept 26; 349,998 twelve months earlier, +24,379, +7.0% on the fixed panel; the series starts January 2021 because the panel is anchored at 31 Dec 2020

The 69 numbers in this chart
MonthCompaniesObserved on the panel
2021-0100
2021-0200
2021-0300
2021-0400
2021-0500
2021-0600
2021-0700
2021-0800
2021-0900
2021-1000
2021-1100
2021-1200
2022-0100
2022-0200
2022-0300
2022-0400
2022-0500
2022-0600
2022-0700
2022-0800
2022-0900
2022-1000
2022-1100
2022-1200
2023-0100
2023-0200
2023-0300
2023-049,798405
2023-0517,278714
2023-0624,7571,023
2023-0732,2371,332
2023-0839,7161,641
2023-0947,1961,950
2023-1054,6762,259
2023-1162,1552,568
2023-1269,6352,877
2024-0177,1153,186
2024-0284,6193,496
2024-0394,1843,891
2024-04103,4454,274
2024-05102,9094,251
2024-06104,7494,327
2024-07106,5754,403
2024-08108,5024,482
2024-09112,8544,662
2024-10134,6135,561
2024-11156,7326,475
2024-12175,4667,249
2025-01195,9298,094
2025-02215,7168,912
2025-03235,4809,728
2025-04253,87810,488
2025-05272,29311,249
2025-06291,95612,061
2025-07311,35312,863
2025-08331,73013,704
2025-09349,99814,459
2025-10365,82515,113
2025-11364,24515,048
2025-12362,30414,968
2026-01363,85515,032
2026-02366,98415,161
2026-03371,81915,361
2026-04373,26515,420
2026-05374,15015,457
2026-06375,58515,516
2026-07375,53715,514
2026-08375,81615,526
2026-09374,37715,466

Both denominators, and a third

Shares of the same 374,379each row a different wholelanding 12 Sept 2026

Denominator
Companies
Share
companies in the index
54,527,857
0.69%
companies running anything in UI Frameworks and Components
20,892,480
1.8%
companies running anything in React component libraries
1,040,684
36.0%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, MUI is rank 2 of 11 technologies in React component libraries.

Open as a segment

374,379 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-mui

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

Open‑source React UI component library and design system utilities.

MUI is a React component library and related design system tooling used to build web application interfaces. It is developed by MUI, with a free open‑source core and paid components and themes for teams.

Kindlibrary
VendorMaterial UI, mui.com
Slugmui
Deploymentself-hosted
Pricingfreemium, subscription
Open sourceyes
First discovered2023-10-05
Last discovered2026-09-10
Taxonomy releasetax-2026.10