Pennsylvania Top Companies List by Market Cap as of August 2026

Evoqua Water Technologies provides water and wastewater treatment solutions, offering a broad portfolio of products, services and expertise to support industrial, municipal and recreational customers. Headquarters is in Pennsylvania.

Evoqua Water Technologies helped more than 38,000 customers solve water challenges at over 200,000 installations worldwide and operate in more than 160 locations across 10 countries. Every day they help millions of people and thousands of companies to meet their water needs.

Manufacture and markets paints and coatings. Headquarters is in Pennsylvania, USA.

Armstrong World Industries is a Design and Manufacture Of Innovative Commercial and Residential Ceiling company. It is having about 2,500 employees and a manufacturing network of 14 facilities plus five plants dedicated to its WAVE joint venture and over $1 billion in revenue in 2019. The headquarters is in USA.

UGI Corporation is a Natural Gas and Electric distribution and Services company. It consists of residential, commercial, industrial, agricultural, wholesale and auto gas customers that use LPG for space heating, cooking, water heating, motor fuel, leisure activities, crop drying, irrigation, construction, power generation, manufacturing and aerosol propellant. The headquarters is in USA.

EnerSys is a Stored Energy Solutions company. The company have grown to become a multibillion dollar global industrial technology enterprise, delivering energy storage systems and solutions to customers across a wide range of industries and application and operations serving over 10,000 customers in 100 countries. The headquarters is in USA.

MSA SAFETY is a Safety Products company. MSA is a global organization committed to developing, manufacturing, and supplying safety products that help protect people and facility infrastructures around the world.

It's product line is used by workers around the world in a broad range of markets including the oil, gas and petrochemical industry, the fire service, the construction industry, mining and the military. The headquarters is in USA.

F.N.B. Corporation is a Financial and Banking Services providing company.

The headquarters is in USA.

F.N.B. Corporation has 21 branches.

Urban Outfitters is fashion related to handpicked vintage clothing, shoes, hats, and backpacks and beauty products.

It operates over 200 stores in the United States, Canada and Europe and offering experiential retail environments and a well curated mix of on trend women’s and men’s clothes from boho dresses, denim and graphics to shoes, hats, and backpacks as well as beauty, intimates, swim and a collection of handpicked vintage clothing.

The headquarters is in USA.

DUOLINGO, INC. is a language-learning website and mobile app in the United States and China. The company offers courses in 40 different languages, including Spanish, English, French, Japanese, German, Italian, Chinese, Portuguese, and others. It also provides a digital language proficiency assessment exam. Headquarters is in Pittsburgh, pennsylvania, USA.

DUOLINGO, INC. total number of employees in 2021 was 500.

EQM Midstream partners Lp is a Energy Utilities, Oil and Gas company. The company services to producers, marketers and local distribution companies through its strategically located natural gas transmission, storage and gathering systems and water services to support energy development and production in the Marcellus and Utica regions. The headquarters is in USA.