Los Angeles tech accelerators Launchpad LA and MuckerLab have landed among the top 5 such organizations in the country, according to a new list released during this week’s South by Southwest festival in Austin, Texas.

Launchpad was ranked fourth, MuckerLab fifth.

The list was compiled by Prof. Yael Hochberg of the MIT Sloan School of Management, Susan Cohen of the University of Richmond and the Batten Institute at the University of Virginia’s Darden School of Business. Rankings were based on primary research and information gathered from website CrunchBase.com, according to reports.

Mountain View business accelerator Y Combinator topped the list.