Horton Lees Brogden Lighting Design (www.HLBlighting.com) has added two new designers to its San Francisco office: Loretta Sheridan and Peter Veale. The firm also has moved its LA office to 8580 Washington Blvd., Culver City, CA 90232, phone: 310-837-0929, fax: 310-837-0902.

Integrated Media Systems Inc., a Los Angeles-based full-service audio, video, and show control systems design/build firm, is opening an office in Columbus, OH, to serve its growing Midwestern client base. Heading up the new office is Kelly Clark, director of marketing and business development. The address is 1000 Taylor Station Road, Suite A, Gahanna, OH 43230, phone: 614-552-6400, fax: 614-552-6401.

Lightolier has announced an agreement to jointly market lighting solutions for the workplace with office equipment maker Steelcase Inc. They will address the user's need for a combination of appropriate levels of ambient, task, and accent lighting that work in concert with the architecture, furniture, and technology in the workplace to reduce eye strain and improve productivity.

Moody Ravitz Hollingsworth Lighting Design Inc. of Van Nuys, CA, and Passamonte Lighting Design Inc. of Valencia, CA, have merged to become Visual Terrain Inc. The firm will serve both the architectural and entertainment markets. A new website, www.visualterrain.net, should be up this month.

San Diego, CA-based audio-visual and production services company Meeting Services Inc. (www.msiprod.com) has opened a new retail sales and contracting division, with a fully-stocked showroom.