Grindstone has produced thousands of volumes of research for clients in 45 states and abroad.
Federal
- Democratic National Committee
- Democratic Senate Majority PAC
- DSCC
- DCCC
- Amanda Edwards for Senate (TX)
- Senator Claire McCaskill (MO)
- Senator Mark Udall (CO)
- Robin Carnahan for Senate (MO)
- Senator Heidi Heitkamp (ND)
- Harold Ford Jr. for Senate (TN)
- David Hoffman for Senate (IL)
- Jim Gray for Senate (KY)
- Sylvia Garcia (TX-29)
- Seth Moulton (MA-6)
- Jared Golden (ME-2)
- Conor Lamb (PA-18)
- Lisa Blunt Rochester (DE-AL)
- Mike Michaud (ME-2)
- Lillian Salerno (TX-32)
- David Kim (GA-5)
- Leslie Cockburn (VA-5)
- Vangie Williams (VA-1)
- Steve Petska (MI-3)
- Emily Cain (ME-2)
- Jon Salazar (CO-3)
- Sima Ladjevardian (TX-20)
- Phil Ehr (FL-1)
- Pam Keith (FL-18)
- Elisabeth Jensen (KY-6)
- Kali Barnett (KS-1)
Statewide
- Democratic Governors Association
- Tony Evers for Governor (WI)
- Karl Dean for Governor (TN)
- Rocky Adkins for Governer (KY)
- Abdul El-Sayed for Governor (MI)
- Mike Michaud for Governor (ME)
- Mike Frerichs for Treasurer (IL)
- Jason Kander for Sec. of State (MO)
- Brad Avakian for Labor Commissioner (OR)
- Clint Zwiefel for Treasurer (MO)
- Libby Mitchell for Governor (ME)
- Vop Osili for Sec. of State (IN)
- Alice Beck Dubow for Superior Court (PA)
- Joe Torsella for Treasurer (PA)
- Bob Vance for Chief Justice of the Supreme Court (AL)
- Steve Kerrigan for LT Gov (MA)
- Clark Mason for Supreme Court (AR)
- Tennesseans for Fair Courts (TN)
Caucus & State Legislative
- DLCC
- New York DSCC
- Ohio House Democratic Caucus
- New Mexico House Democratic Caucus
- Nevada Senate Democratic Caucus
- Virginia House Democratic Caucus
- North Carolina Democratic Party
- Tennessee Senate & House Democratic Caucuses
- Indiana Senate Democratic Caucus
- Senate Democratic Caucus of New Hampshire
- Kentucky Senate & House Democratic Caucus
- New Jersey Democratic Legislative Majority
- South Carolina House Caucus
- New Mexico Senate (I.E.)
- West Virginia Senate and House (I.E.)
- New Direction PAC (WA I.E.)
- Arizona Wins (I.E.)
- Gumbo PAC (LA I.E.)
- Rebuild LA PAC (LA I.E.)
- Bayou Blue PAC (LA I.E.)
- The Future We Want (AZ I.E.)
Municipal
- Mayor Jim Kenney (Philadelphia, PA)
- District Attorney Larry Krasner (Philadelphia, PA)
- Tim Keller for Mayor (ABQ, NM)
- Helena Moreno for Council-At-Large (New Orleans, LA)
- Glenn Funk for DA (Nashville, TN)
- Kevin Steele for DA (Montgomery County, PA)
- Sharon Weston Broom for Mayor (Baton Rouge, LA)
- Andy Berke for Mayor (Chattanooga, TN)
- Karl Dean for Mayor (Nashville, TN)
- Megan Barry for Mayor (Nashville, TN)
- Jennifer Roberts for Mayor (Charlotte, NC)
- Jim Gray for Mayor (Lexington, KY)
- Tim Leavitt for Mayor (Vancouver, WA)
- Anthony Foxx for Mayor (Charlotte, NC)
- Wade Hinton for Mayor (Chattanooga, TN)
- Bill Thompson for Mayor (New York, NY)
- Barbara Canales for County Judge (Neuces Co., TX)
- Anita Lopez for Mayor (Toledo, OH)
- Chris Romer for Mayor (Denver, CO)
- Kevin Beckner for Commissioner (Tampa, FL)
- Alderman John Pope (Chicago, IL)
- Alan Howse for County Board (Arlington, VA)
- Leon Stavrinakis for Mayor (Charleston, SC)
- John Foradora for Supreme Court (PA)
Other
- Chicago Teachers Union
- Civitas Public Affairs
- UFCW Local 1994 MCGEO (MD)
- Impact Project (VA)
- America Coming Together/Media Fund
- American Federation of Teachers
- Alabama Education Association
- Project New America
- International contract work on various political parties in the Caribbean, Mexico, and New Zealand as well as Presidential Level Oppo in Nigeria