Control G is a complete solution for today's advertising agency and/or public relations / marketing firm. This integrated software solution provides you with Billing, Time Keeping and Payables. It also includes General Ledger, Trafficking and Estimating. Control G also offers packages for Windows, Macintosh, Windows and other network platforms. Control G is the right choice for your Advertising Agency or Public Relations Firm, Ad Agency. Design Firm, Design Boutique, In-House Agency or Advertising Agency. Gabel Systems, Inc., a Colorado-based corporation, has the sole purpose of developing, servicing, and marketing Control G's software package. Control G has been in existence for more than ten years, and boasts over 500 users. Gabel Systems, Inc. is available by phone.