You will end up with a thousands different answers. If you are looking for a towable unit, here are a few that I can think of.
http://www.gatorpit.net/
http://www.austinnationalsmokers.com/
http://www.bbqpits.com/
http://www.peoriacustomcookers.com/new/home.html
http://www.spicewineironworks.com/
http://www.sybbq.com/
These are just the tip of the iceberg. Here are more for you in case you are wanting to do some further research. Hope this helps, ~Jim
Acme Custom BBQ grills and pits
Friendswood, TX
http://www.acmewelding.com/BBQ.html
Austin National Smoker Company
Noblesville, IN
http://www.austinnationalsmokers.com
Pits made from New steel pipe and plate
Backyard/Competition/Catering
Specializing in rotisserie barbecue pit smokers
BBQ Pits by Klose
Houston, Texas
http://www.bbqpits.com
Pits made from New steel pipe and plate
Makes a line of backyard pits and mobile pits.
BBQ Pits and Smokers
Cedar Park, Texas
http://www.bbqpits.biz/index.html
Big Drum Smokers
Rocky Richmond
Naples, NC
http://groups.msn.com/BigDrumSmoker-BDS
New steel drum construction, various sizes
Big Jims Custom BBQ pits
http://www.bigjim.freeservers.com/smokers.html
Propane tank smokers
Carters Cookers
Gaston, SC
http://www.carterscookers.com
Steel tank cooker/smokers
Cattle King BBQ Pits
Family Owned & Operated
Fred L. Voigt
New Braunfels, Texas
http://www.angelfire.com/tx3/RigWelders/CK.html
Cookers and Grills
Watkinsville, GA
http://www.cookersandgrills.com
Reverse Flow, new propane tank construction
Backyard/Comp/Catering
D Wiley BBQ Pits
Buda, Texas
http://myjobisthepits.com
New propane tanks
Davis Smokers and Grills
Glennville, GA
http://www.davissmokersandgrills.homestead.com
Diamond Plate Products
Ballinger, Texas
http://diamondplateproducts.com
Makes full Custom BBQ pits from new steel tanks
Backyard/Competition/Catering
Detroit Grill King
Detroit, MI
http://www.detroitgrillking.com
Gator Pits of Texas
Houston, Texas
http://gatorpit.net
Makes full custom BBQ pits from steel pipe and plate
Backyard/Competition/Catering
Pit accessories
Excellent customer service
Grillnsmoke Bbq Smokers
Laredo, Texas
http://www.grillnsmoke.com/Page_1.php
Custom smokers
Holstein Manufacturing
Holstein, Iowa
http://www.holsteinmfg.com
Very large range of grills and smokers
Horizon Smokers
Perry, OK
http://www.hightide.com/horizon2/products.html
Jedmaster Cookers
McCalla, Al
http://www.jedmaster.com
JR Enterprises
Dewitt, Arkansas
http://www.jrenterprises.com
KCK BBQ Smokers
Kansas City, KS
http://www.kck.com
L&R Custom BBQ Pits
Stephenville, TX
http://www.lrbbqpits.com
Lang Smoker Cookers
Nahunta, GA
http://www.pigroast.com
Pits made from new propane tanks
Backyard/Competition/Catering
Lone Star Welding
Richmond, TX
http://www.lswelding.net/index.html
Custom BBQ pits with some interesting art add ons
Long Horn BBQ pits
Uvalde, Texas
Available at Factory Direct BBQ Pits and Smokers Cedar Park, Texas
http://www.bbqpits.biz/index.html
Lyfe Tyme - BBQ Pits
Uvalde, Texas
http://www.lyfetyme.com
Manufactured pits with some customizing available
Pits made from New steel pipe including uprights
Makes full custom mobile pits
Meadow Creek Welding
New Holland, PA
http://www.meadowcreekbbq.com/Welcome.html
Olalla Smokers & Grills of Olalla
Chuck Senn
4345 SE Burley-Olalla Rd.
Olalla, WA. 98359
Phone: 253/ 857-4420
Old Country BBQ Pits
Laredo,Texas
http://www.bbquepits.com
Mass Produced old style BBQ pits
Peoria Custom Cookers
Peoria, Illinois
http://www.peoriacustomcookers.com
Backyard and mobile pits. Rolled plate construction.
Pits by Jambo
Jamie Geer Phone 817-572-7631 home, cell 817-822-1689
Hand made one at a time with incredible attention to detail. These are the pits used with great success by Johnny Trig of the
Smoking Triggers, Uncle Earnie and Jamie and his
Buckwheat Express team.
Pits by JJ
Houston, Texas
http://www.pitsbyjj.com
Makes full custom BBQ pits from steel pipe and plate
Backyard/Competition/Catering
Pitts and Spitts
Houston, Texas
http://pittsandspitts.com
Pits made from New steel plate and stainless steel
Backyard/Competition/Catering
Quality Grills
Detroit, MI
http://www.qualitygrills.com
Huge custom mobile pits
Real Grill
West Palm Beach, Florida
http://www.realgrill.com
New propane tank smoker/grills
Sikes Cookers
Vidalia, GA.
http://www.stainless-gas-grills.com
Unique Aluminum & Stainless smokers
Southern Yankee Bar-B-Q
Anderson, IN
http://www.sybbq.com
Makes full custom BBQ pits from steel pipe and plate
Backyard/Competition/Catering
SWS Superior Welding Service - Southwest Smoker
North Little Rock, AR
http://www.southwestsmoker.com
Pits made from New steel pipe and plate
Backyard/Competition/Catering
Tejas Smokers
Houston, Texas
http://www.tejassmokers.com
Well engineered production backyard smokers and grills
New 1/4" steel plate construction
Great selection of outdoor cooking gear and accessories for your smoker
Great customer service
The Good One- Goodwin Enterprises
Burns, KS
http://www.thegood-one.com
TMP BBQ Pits
Midland, Texas
http://www.gotmp.com/bbqpits.htm
Tucker Cookers
Memphis, Tennessee
http://www.tuckercooker.com
Very nice mobile smoker/grills
Western Rebel BBQ Pits
Chino Hills, California
http://www.outofthisworldbbq.com/index.html