Although Mitt Romney has not revealed his bundler list, Crow clearly is on it.

FORBES: Harlan Crow's Political Contributions Take Many Paths

The company essentially acts as a bundler, gathering payments and cutting checks to candidates, says Everton.

FORBES: Magazine Article

Curiously, the Edwards campaign also listed Cantu as a bundler, although it never said how much he raised.

NPR: Clinton's Financial Ties to South Texas Donor

The man at the helm is former UBS President and COO and Obama bundler Robert Wolf.

FORBES: Wall Street, Political Insiders Quake In Their Guccis About Coming Expose

But what a political campaign does with donors' information--from any bundler, not just Visible Vote--is beyond a bundler's control.

FORBES: Magazine Article

All of the money counts toward the original bundler's tally at campaign headquarters.

NPR: Democratic Fundraiser Hsu Had Troubled History

Campaigns also get nervous as the bundler networks expand ever outward.

NPR: Democratic Fundraiser Hsu Had Troubled History

There's no limit on what a bundler can bring in.

NPR: Three Sectors Dominate Campaign Bundling

Also realizing Tesla IPO windfalls are the elite of Silicon Valley venture capital: the Westly Group (whose principal, Steve Westly, is an Obama campaign bundler), Draper Fisher Jurvetson, and VantagePoint Venture Partners.

WSJ: Review & Outlook: The Other Government Motors