IAB is primarily focusing on members of the House and Senate Commerce Committees and will likely get involved in the Leadership PAC.
"We're not really trying to broaden beyond that," Zaneis said. "Focus is key."
IAB's PAC currently has $55,000, according to its annual report.
IAB is the voice for online media and advertisers worried about potential regulations on how consumers' personal information is collected and used for commercial purposes. Several members of the House Energy and Commerce Committee--Rick Boucher (D-Va.), Bobby Rush (D-Ill.) and Cliff Stearns (R-Fla.)--say they are putting together a bill to better protect consumers' privacy online.
Last week, those lawmakers said they are also looking to place rules on GPS tracking technologies and location-based marketing as mobile advertising becomes more prevalent.
IAB is also closely watching a proposal in the Senate that would give the FTC increased power to regulate the industry.
Zaneis said fundraising is a new activity for most of IAB's member companies.
"Most people have donated to a political campaign, but they've never been to D.C.," he said. "It's nice that they've come along realized the importance of having a presence here."