# 2026 Inc. 5000 fastest-growing companies list

> Live situation record from CLSTR: https://clstr.news/situations/2026-inc-5000-fastest-growing-companies-list
> Updated: 2026-08-13T19:43:15.000Z. Sources: 5. Developments: 2.

The release of the 2026 Inc. 5000 list highlights various fast-growing private companies across the United States, with specific focus on the Greater Philadelphia region and the fenestration sector.

In Pennsylvania, companies such as Malvern-based 2X and Elizabethville-based Upper Dauphin Vinyl Products were recognized. 2X, which ranked No. 1,330 overall, noted a shift toward a go-to-market model integrating expert teams with AI following its acquisition of Knownwell.

Broadening the scope to the Greater Philadelphia area, 143 companies secured spots on the list, up from 133 the previous year. Top regional performers included Mainfactor (No. 58), Stateside Vodka / Clement Pappas & Co. (No. 88), and rockITdata (No. 95). Additionally, the list featured several home improvement and fenestration firms, including Home Genius Exteriors (No. 465), Victory Home Remodeling (No. 998), Fenetex Corp. (No. 1,951), and Awake Window & Door Co. (No. 2,255).

## Timeline

### 2026-08-13: Inc. 5000 list features Philadelphia firms and fenestration companies

The Inc. 5000 list of fastest-growing U.S. private companies features 143 Philadelphia-area firms and several prominent fenestration and home improvement companies.

3 sources. https://clstr.news/cluster/inc-5000-list-features-philadelphia-firms-and-fenestration-companies

### 2026-08-11: Pennsylvania companies named to 2026 Inc. 5000 list

Pennsylvania companies 2X and Upper Dauphin Vinyl Products have been named to the 2026 Inc. 5000 list of America’s fastest-growing private companies.

2 sources. https://clstr.news/cluster/pennsylvania-companies-named-to-2026-inc-5000-list

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Cite as: 2026 Inc. 5000 fastest-growing companies list. CLSTR, https://clstr.news/situations/2026-inc-5000-fastest-growing-companies-list