| Nr. | Rennstall | Fahrzeug | Fahrer 1 | Fahrer 2 | Fahrer 3 |
| LMP1 | |||||
| 6 | Muscle Milk Pickett Racing | HPD ARX-03a-Honda | Klaus Graf | Lucas Luhr | Simon Pagenaud |
| 16 | Dyson Racing | Lola B12/60-Mazda | Chris Dyson | Guy Smith | Steven Kane/Johnny Mowlem |
| 20 | Dyson Racing | Lola B11/66-Mazda | Michael Marsal | Eric Lux | Tony Burgess |
| LMP2 | |||||
| 2 | Project Libra | Radical SR10-Ford | Andrew Prendeville | Rusty Mitchell | Duarte Félix da Costa |
| 27 | Dempsey Racing | Lola B12/87-Judd | Patrick Dempsey | Joe Foster | Jonny Cocker/Dane Cameron |
| 37 | Conquest Endurance | Morgan-Judd | Martin Plowman | David Heinemeier Hansson | Jan Heylen/Antônio Pizzonia |
| 54 | Black Swan Racing (zurückgezogen) | Lola B11/80-Honda | Tim Pappas | Jeroen Bleekemolen | Bret Curtis/Jon Fogarty |
| 95 | Level 5 Motorsports | HPD ARX-03b-Honda | Scott Tucker | Luiz Díaz | Ryan Hunter-Reay/Franck Montagny |
| 055 | Level 5 Motorsports | HPD ARX-03b-Honda | Scott Tucker | João Barbosa | Christophe Bouchut/Franck Montagny |
| LMPC | |||||
| 5 | Muscle Milk Pickett Racing | Oreca FLM09 | Memo Gidley | Michael Guasch | Roger Wills/Archie Hamilton |
| 7 | Merchant Services Racing | Oreca FLM09 | Chapman Ducote | Tony Burgess | Pablo Sanchez/Javier Acheverria/James Kovacic/Antonio Downs |
| 8 | Merchant Services Racing | Oreca FLM09 | Kyle Marcelli | Antonio Downs | Dean Sterling/Lucas Downs/Matt Downs |
| 9 | RSR Racing | Oreca FLM09 | Bruno Junqueira | Tom Drissi | Roberto González |
| 18 | Performance Tech Motorsports | Oreca FLM09 | Anthony Nicolosi | Ricardo Vera | Raphael Matos |
| 25 | Dempsey Racing | Oreca FLM09 | Duncan Ende | Henri Richard | Dane Cameron/Ryan Lewis |
| 52 | PR1 Mathiasen Racing | Oreca FLM09 | Butch Leitzinger | Ken Dobson | Rudy Junco Jr. |
| 05 | CORE Autosport | Oreca FLM09 | Colin Braun | Jon Bennett | Eric Lux |
| 06 | CORE Autosport | Oreca FLM09 | Alex Popow | Ryan Dalziel | E.J. Viso/Tom Kimber-Smith/Burt Frisselle |
| GT | |||||
| 3 | Corvette Racing | Chevrolet Corvette C6.R | Jan Magnussen | Antonio García | Jordan Taylor |
| 4 | Corvette Racing | Chevrolet Corvette C6.R | Oliver Gavin | Tommy Milner | Richard Westbrook |
| 17 | Team Falken Tire | Porsche 997 GT3 RSR | Bryan Sellers | Wolf Henzler | Martin Ragginger |
| 23 | Lotus/Alex Job Racing | Lotus Evora GTE | Bill Sweedler | Townsend Bell | |
| 44 | Flying Lizard Motorsports | Porsche 997 GT3 RSR | Seth Neiman | Marco Holzer | Andy Lally/Darren Law |
| 45 | Flying Lizard Motorsports | Porsche 997 GT3 RSR | Jörg Bergmeister | Patrick Long | Marco Holzer/Richard Lietz |
| 48 | Paul Miller Racing | Porsche 997 GT3 RSR | Bryce Miller | Sascha Maassen | Rob Bell |
| 55 | BMW Team RLL | BMW M3 GT2 | Bill Auberlen | Jörg Müller | Uwe Alzen |
| 56 | BMW Team RLL | BMW M3 GT2 | Dirk Müller | Joey Hand | Jonathan Summerton |
| 91 | SRT Motorsports | SRT Viper GTS-R | Kuno Wittmer | Dominik Farnbacher | |
| 93 | SRT Motorsports | SRT Viper GTS-R | Marc Goossens | Tommy Kendall | |
| 01 | Extreme Speed Motorsports | Ferrari 458 Italia GTC | Scott Sharp | Johannes van Overbeek | Guy Cosmo |
| 02 | Extreme Speed Motorsports | Ferrari 458 Italia GTC | Ed Brown | Guy Cosmo | Jeff Segal/Anthony Lazarro |
| 007 | Aston Martin Racing (Gaststarter) | Aston Martin Vantage GTE | Adrián Fernández | Darren Turner | Stefan Mücke |
| GTC | |||||
| 11 | JDX Racing | Porsche 911 GT3 Cup | Chris Cumming | Michael Valiante | Kevin Estre/Mark Bullitt/Martin Ragginger/Tim Pappas/Jeroen Bleekemolen/Matthew Marsh |
| 22 | Alex Job Racing | Porsche 911 GT3 Cup | Cooper MacNeil | Leh Keen | Louis-Philippe Dumoulin/Anthony Lazzaro |
| 23 | Alex Job Racing | Porsche 911 GT3 Cup | Bill Sweedler | Townsend Bell | Dion von Moltke |
| 24 | Competition Motorsports | Porsche 911 GT3 Cup | Bob Faieta | Michael Avenatti | Cort Wagner |
| 30 | NGT Motorsport | Porsche 911 GT3 Cup | Sean Edwards | Henrique Cisneros | Carlos Kauffman |
| 31 | NGT Motorsport | Porsche 911 GT3 Cup | Angel Benitez Sr. | Angel Benitez Jr. | Nicki Thiim |
| 32 | GMG Racing | Porsche 911 GT3 Cup | James Sofronas | Alex Welch | René Villeneuve |
| 33 | Green Hornet Racing | Porsche 911 GT3 Cup | Peter LeSaffre | Anthony Lazzaro | |
| 34 | Green Hornet Racing | Porsche 911 GT3 Cup | Peter LeSaffre | Damien Faulkner | Sebastiaan Bleekemolen |
| 66 | TRG | Porsche 911 GT3 Cup | Spencer Pumpelly | Emilio Di Guida | Marc Bunting/Jeroen Bleekemolen/Mike Piera |
| 68 | TRG | Porsche 911 GT3 Cup | Emilio Di Guida | Jeroen Bleekemolen | Mike Hedlund |
