Ohio Top Companies List by Market Cap as of August 2026

MPLX owns and operates midstream energy infrastructure and logistics assets, and provides fuels distribution services. MPLX's assets include a network of crude oil and refined product pipelines; an inland marine business; light-product terminals; storage caverns; refinery tanks, docks, loading racks, and associated piping; and crude and light-product marine terminals. The company also owns crude oil and natural gas gathering systems and pipelines as well as natural gas and NGL processing and fractionation facilities in key U.S. supply basins.

Cardinal Health, Inc. (NYSE: CAH) is a global, integrated healthcare services and products company, providing customized solutions for hospitals, health systems, pharmacies, ambulatory surgery centers, clinical laboratories and physician offices worldwide. Headquarters is in USA.

As on 2022, Cardinal Health, Inc. has 46,500 employees.

Cardinal Health, Inc. annual revenue generated for period ending Jun-2022 was 181,364 million USD.

FIFTH THIRD BANCORP is Banking and Financial services company with headquarters is in USA.

As on 2019, FIFTH THIRD BANCORP has 1154 branches and 2,469 ATMs.

As on Dec-2021, FIFTH THIRD BANCORP has 1,117 full-service Banking Centers.

As on 2022, FIFTH THIRD BANCORP has 19,319 employees.

FIFTH THIRD BANCORP annual revenue generated for period ending Dec-2022 was 8,295 million USD.

HUNTINGTON BANCSHARES is Banking and Financial services company with headquarters is in Ohio, USA.

As on 2022, HUNTINGTON BANCSHARES has 19,920 employees.

Kroger is retailing sector company with headquarters is in Ohio, USA.

As on 2022, Kroger has 465,000 employees.

Mettler-Toledo International manufactures technology products, precision instruments and services for many applications in research and development, quality, production, logistics and retail to customers around the world. Headquarters is in Ohio, USA.

As on 2022, Mettler-Toledo International has 18,000 employees.

Mettler-Toledo International annual revenue generated for period ending Dec-2022 was 3,919 million USD.

Electricity generation and Electricity distribution, Electric Utility company with headquarters is in Ohio, USA.

As on 2022, FIRSTENERGY has 12,335 employees.

FIRSTENERGY annual revenue generated for period ending Dec-2022 was 12,459 million USD.

FIRSTENERGY annual net income generated for period ending Dec-2022 was 406 million USD.

CINCINNATI FINANCIAL CORPORATION is Insurance services providing company with headquarters is in Ohio, USA.

responsibility to be a steady, fair and responsible employer, insurance carrier and corporate citizen.

CINCINNATI FINANCIAL total number of employees in 2022 was 5,148.

CINCINNATI FINANCIAL CORPORATION annual revenue generated for period ending Dec-2022 was 6,557 million USD.

KEYCORP is Banking and Financial Services company with headquarters is in USA.

As on Dec-2021, KEYCORP has approximately 999 branches and 1,317 ATMs in 15 states.

As on 2022, KEYCORP has 16,975 employees.

KEYCORP annual revenue generated for period ending Dec-2022 was 7,033 million USD.

KEYCORP annual net income generated for period ending Dec-2022 was 1,799 million USD.

NORDSON CORPORATION is Adhesive dispensing equipment manufacturing company with headquarters is in Ohio, USA.

As on Oct-2021, NORDSON CORPORATION has 6,813 employees.

NORDSON CORPORATION annual revenue generated for period ending Oct-2022 was 2,590 million USD.

NORDSON CORPORATION annual net income generated for period ending Oct-2022 was 513 million USD.