Raceteams - alphabetical overview: L
- L&M Racing
- La Filière
- Lada Sport
- Lago Racing
- Lambda Performance
- Lambo-Racing
- Lammertink Racing
- Lanan Racing
- Land Motorsport
- Landgraf Motorsport
- Lanesra Racing
- Lanus Motorsport
- Lanza Motorsport
- Lapidus Racing
- Larbre Compétition
- Larkham Motor Sport
- Last Lap Restorations
- Latitude 43 Motorsports
- Lauderbach Motorsport
- Laurentius Consultants Racing
- Lavaggi Sport
- Lawrence Katsidis
- Lazier Partners Racing
- LD Autosport
- LD Racing
- Le Beausset Motorsports
- Leavine Family Racing
- Leavy Racing Enterprises
- LeCain Racing
- Lechner Racing
- Lecor Sports
- Lee Mowle Motorsport
- Legacy Autosport
- Legacy Motor Club
- Legutko Racing
- Lehtonen Motorsport
- Leigh Miller Racing
- LEIN Racing
- Leipert Motorsport
- LEM Racing
- Lema Racing
- Leonard Motorsport
- Level 5 Motorsports
- Level Racing
- Levin Racing Team
- Leyton House Racing
- LG Motorsports
- Lian Racing
- Liberty Racing
- Libra Racing
- Lido Corse
- Limitless Racing
- Linares Racing
- Lincoln Sport Group
- Linky Racing
- Listech Racing
- Lister Racing
- Litespeed
- Litoral Group
- Live Fast Motorsports
- Live-Strip.com Racing
- Llusiá Racing
- LM corsa
- LMP Motorsport
- LMP Motorsport
- LMS Engineering
- LMS Racing
- Lochmoor Promotions
- Logan Racing
- Logo Automoción
- Lohmann Motorsport
- Lola Motorsport
- Lombard Racing
- Lone Star Racing
- Look Fong Racing Team
- Lotus Driving Academy
- Lotus F1 Team
- Lotus Renault GP
- LP Racing
- LP Racing
- LR Organisation
- LTD Powersports
- Luc Alphand Aventures
- Lucas Dumbrell Motorsport
- Lucchini Engineering
- Lucidi Motors
- Luczo Dragon Racing
- Luigi Taverna Racing
- Lukas Motorsport
- Lukoil Racing Team
- Luxury Racing
- Luyendyk Racing
- Luzich Racing
- Lyn St. James Racing
- Lynch Racing
- Lynx Racing