A few months ago, Lindstrom sent out a notice saying they were temporarily closed to submissions. As far as I can tell from all the Web site info, that is no longer the case. Check them out and see if they're worth a query.
Here's what they handle:
Thrillers and mysteries
The agency does not handle young adult or children's books, or short stories and poetry.
Lindstrom Literary Management, LLC
871 N. Greenbrier Street
Arlington, VA 22205
firstname.lastname@example.org (NEW E-MAIL)