Indianapolis-based marketing firm TrendyMinds plans to more than double its staff in the next two years, adding up to 20 jobs as it moves into a former labor union hall downtown.

State economic development officials offered the company as much as $240,000 in performance-based tax credits based on the job-creation plans. The city of Indianapolis has approved a property tax abatement at the request of Develop Indy.

TrendyMinds in October said it planned to spend $1 million to refurbish the building at 531 E. Market St. that formerly served as an office for United Brotherhood of Carpenters and Joiners Union Local 60. Indiana Economic Development Corp. pegged the investment at $964,000 in a Thursday news release.

The building totals 8,300 square feet on three levels to accommodate future growth. TrendyMinds has 16 employees and has begun hiring account executives, graphic designers and website coders.

Workers are expected to move into the building early next year.

Company CEO Trevor Yager started TrendyMinds in 1996 as a senior at Anderson University. The firm specializes in Web design and development, public relations, branding and video production.