The Company Theatre, a nonprofit organization formed in 1979, is holding a benefit to fund the replacement of two industrial heating and air-conditioning units. “Roxie and Velma’s Secret Chicago Speakeasy Cocktail Event” is happening at 6:30 p.m. on Wednesday. The event at the theater, 30 Accord Park Drive, will include the only remaining opportunity to see the sold out “Chicago” production. Tickets are $75. Participants will receive hors d’oeuvres, a dessert bar, and a post-performance reception with the cast.