Eggplant LF is a firm who composes and writes songs for Thomas & Friends. They have also revamped the theme for the series. Steve D'Angelo co-founded Eggplant LF. Terry Tompkins is a producer and partner for the firm.
Eggplant LF have also composed songs for one of HiT Entertainment's other brands, "Fireman Sam".
- Steve D'Angelo (co-founder and composer)
- Casey Manierka (singer)
- Jay McCarrol (singer)
- Terry Tompkins (producer, partner and singer)
- Dave Conlon (CFO and partner)
- Rocco Gagliese (director and partner)
- Hey, Hey Thomas!
- On a Journey Today
- Let's Be Brave
- It's Christmas Time
- The Best Friends Express
- Engine Rollcall (nineteenth season onwards)
- There's Snow Place Like Home
- Let's Go!
- Race with You
- Spring is Here!
- Glynn's Christmas Wish
- It's Halloween