[2] As a session musician Pomeroy contributed to albums not only by Williams and LaBeef, but also by such diverse artists as Trisha Yearwood, Emmylou Harris, Guy Clark, Peter Frampton, Duane Eddy, Neil Diamond, Billy Ray Cyrus, Tom Paxton, George Jones, Billy Joe Shaver, Shelby Lynne, Jon Randall, Brenda Lee, Gretchen Peters, Alan Jackson, Beth Nielsen Chapman, Earl Scruggs, Randy Scruggs, Allison Moorer, Steve Wariner, Asleep at the Wheel, Matraca Berg, Kathy Mattea, Larry Knechtel, Keith Whitley, Jesse Winchester, and Alison Krauss.

He is a featured artist on the "Nashville Acoustic Sessions" CD project, with Raul Malo, Rob Ickes, and Pat Flynn, released by CMH Records in 2004.

[3] In addition to his long tenure with Don Williams, Pomeroy has performed in concert with artists such as Steve Winwood, Willie Nelson, Garth Brooks, John Hiatt, Ricky Skaggs, Adrian Belew, Peter Frampton, Lee Ann Womack, Patty Loveless, Reeves Gabrels, Duane Eddy, and many more.

The concert video "The Day The Bass Players Took Over The World", (originally released in 1996 on VHS on Earwave, and re-released on DVD in 2014 with bonus material) featuring special guests Victor Wooten, Steve Bailey, Oteil Burbridge, and Bill Dickens.

Among his most recent projects are Three Ring Circle, an "acoustic jam band powergrass trio" with Rob Ickes and Andy Leftwich, and The Taproom Tapes, a live recording of collective improvisations featuring 14 of Nashville's musicians, including Jeff Coffin, Pat Bergeson, Johnny Neel, and others.

He was one of the AFM leaders in the forefront of the effort to reform airline carry on policies for musical instruments, a process completed in December 2014.