Players in both states will be able to use Bojoko to browse and choose from licensed online casinos in each state.
Expansion into Michigan and West Virginia comes after Bojoko made its debut in the US in January last year when it launched in New Jersey.
Bojoko also said that plans are in place to expand its presence in the US further by pursuing licenses in other states across the country.
“Securing licences in West Virginia and Michigan form part of our wider plans for the US market and will allow us to significantly increase the size of our addressable audience,” Bojoko chief executive Joonas Karhu said.
“Bojoko has already hit the ground running in the Garden State where players are enjoying our open and honest approach to helping them browse and choose online casinos, and now players in West Virginia and Michigan will be able to do the same.
“Both states are showing fast growth with plenty of untapped potential, and we look forward to helping players in each state find the best licensed betting brands from them.”