Automotive interior parts

Corsa Instruments — data acquisition
http://www.corsa-inst.com/
Iotech — data acqusition
http://www.iotech.com/
Land & Sea, Inc. — dynos and data acquisition
http://www.land-and-sea.com/
Magneti Marelli — data acquisition
http://www.webcon.co.uk/
Performance Trends — data loggers and software
http://www.performancetrends.com/
PI Research USA — data acquisition
http://www.pi-group.com/
Racepak Data Systems — data acquisition
http://www.racepak.com/
Racescan — scanners
http://www.racingelectronics.com/

Automotive instruments

Actron Manufacturing
http://www.actron.com/

Alpha Instruments
http://www.alphainst.com/

Auto Meter
http://www.autometer.com/

Clark Brothers Instrument Company
http://www.clarkbrothers.net/

Classic Instruments
http://www.classicinstruments.net/

Custom Rod Gauges
http://www.customrodgauges.com/

Dakota Digital
http://www.dakotadigital.com/

Daytona Instruments
http://www.daytonainstruments.com/

Dolphin Instruments
http://www.dolphingauges.com/

Escort, Inc.
http://www.escortradar.com/

Faria Instruments
http://www.faria-instruments.com/

G-Tech Pro
http://www.gtechpro.com/

Green Gauges
http://www.greengauges.com/

Haneline — Teleflex instruments
http://www.haneline.com/

Intellitronics
http://www.intellitronics.com/

Livorsi Marine
http://www.livorsi.com/

Mooneyes
http://www.mooneyes.com/

SPA Design — electronic instruments
http://www.spa-uk.co.uk/

Stack, Inc. — US distributor
http://www.stackinc.com/

Stack, Ltd. — UK manufacturer
http://www.stackltd.com/

Stewart Warner
http://www.stewartwarner.com/

Sunpro
http://www.actron.com/

SW Performance
http://www.sw-performance.com/

TelTek USA
http://www.teltekusa.com/

Valentine One
http://www.valentine1.com/

VDO America
http://www.vdona.com/

Westach
http://www.westach.com/

Instrument panels

Haneline
http://www.haneline.com/

Knecht Equipment Co.
http://www.knechtequipment.com/

MotorHead Jewelry
http://www.motorheadjewelry.com/

Automotive instrument repair shops

APT Instruments International
http://www.gaugeguys.com/

Auto Instruments.com
http://www.autoinstruments.com/

Bob's Speedometer
http://www.bobsspeedometer.com/

Speedometer Service Company
www.speedometersolutions.com/

The Tach Man
http://www.tachman.com/

United Speedometer Shop
http://www.speedometershop.com/

Williamson's Instrument Service
http://www.williamsons.com/

Seat manufacturers

Aerosport
http://www.aerosport.net/

Beard Seats
http://www.beardseats.com/

Butlerbuilt
http://www.butlerbuilt.net/

Corbeau USA
http://www.corbeau.com/

Glide Engineering — seat frames
http://www.glideeng.com/

ISP — Innovative Safety Products
http://www.ispseats.com/

Jaz Products
http://www.jazproducts.com/

Joie of Seating
http://www.joieofseat.com/

Kemmler Products, Inc. — shock-absorbing padding
http://www.kemmlerproducts.com/

Kirkey Racing Fabrication
http://www.kirkeyracing.com/

Mastercraft Race Products — with suspension
http://www.mastercraftseats.com/

McKinney Corp. — Kevlar seats for Top Fuel cars
http://www.mckinneycorp.com/

Momo
http://www.momo.it/

Procar
http://www.procarbyscat.com/

PRP Seats
http://www.prpseats.com/

RCI
http://www.rciracing.com/

Recaro
http://www.recaro.com/

Richardson Racing Products, Inc.
http://www.rrpinc.com/

Rostra Precision Controls, Inc.
http://www.rostra.com/

Safecraft
http://www.safecraft.com/

Santana Interiors
http://www.santanainteriors.com/

Sparco USA
http://www.sparcousa.com/

Tea's Design — seat frames
http://www.teasdesign.com/

Ultra Shield Race Products
http://www.ultrashieldrace.com/

Wise Guys Seats and Accessories — seat frames
http://www.wiseguys-seats.com/

Steering column manufacturers

Billet Specialties — steering columns
http://www.billetspecialties.com/

Borgeson and Mullins — steering boxes, columns, shafts and U-joints
http://www.borgeson.com/

Flaming River Performance Products — steering boxes, steering columns, steering shafts, and U-joints
http://www.flaming-river.com/

ididit, Inc. — steering columns
http://www.ididitinc.com/

Juliano's — steering column floor mounts and steering column hangers
http://www.julianos.com/

LimeWorks Speed Shop — steering columns and steering column hangers
http://www.limeworksspeedshop.com/

Steering wheel manufacturers

Billet Specialties — for hot rods and custom cars
http://www.billetspecialties.com/

Borgeson and Mullins — Bell-style steering wheels
http://www.borgeson.com/

Custom Auto Interiors — for hot rods and custom cars
http://www.customautointeriors.com/

J.B. Donaldson Co. — custom-built steering wheels for hot rods
http://www.jbdonaldsonco.com/

Grant Products
http://www.grantproducts.com/

Impy's Billet Steering Wheels — for hot rods and custom cars
http://www.impywheels.com/

Kemmler Products, Inc. — shock-absorbing padding for steering wheels
http://www.kemmlerproducts.com/

Momo — for sports cars
http://www.momo.it/

Mooneyes — for hot rods and custom cars
http://www.mooneyes.com/

Moto-Lita — for sports cars
http://www.moto-lita.co.uk/

Naiser Racing — for hot rods and custom cars
http://www.naiser-racing.com/

PearlCraft — vintage steering wheel restoration
http://www.pearlcraft.com.au/

Schroeder Racing Products — for sprint cars
http://www.schroedersteering.com/

Sparco USA — for sports cars
http://www.sparcousa.com/

Trenz — billet aluminum steering wheels
http://www.trenz.com/

Weld Racing — for hot rods and custom cars
http://www.weldracing.com/

The Wheel Shoppe, Inc. — custom banjo steering wheels
http://www.thewheelshoppe.com/

Wheelskins — leather steering wheel covers
http://www.wheelskins.com/

Upholstery

ABC Auto Upholstery — glass, tops, and upholstery
http://www.abcautocarpetandupholstery.com/

Appleman Interiors — custom upholstery
http://www.applemaninteriors.com/

Sid Chavers Company — custom upholstery
http://www.sidchaverscompany.com/

Euro-Leather, Inc. — Italian leather hides
http://www.euro-leatherinc.com/

EZ Boy Rod Interiors — hot rod upholstery kits
http://www.rodinteriors.com/

Fat Lucky's — traditional custom upholstery
http://www.fatluckys.com/

Gary's Upholstery — upholstery supplies
http://www.garysupholstery.com/

General Rubber Fabric — upholstery supplies
http://www.generalrubber.net/

The Haartz Corporation — Stayfast for upholstering tops
http://www.haartz.com/

Hampton Coach — 1927-1955 Buick and 1916-1954 Chevy upholstery
http://www.hamptoncoach.com/

Bill Hirsch — leather hides for upholstering
http://www.hirschauto.com/

Interiors by Shannon — custom upholstery
http://www.interiorsbyshannon.com/

Kustom Auto Interiors — custom upholstery
http://www.rogerdstarkey.com/

Langdon Interior Design, Inc. — custom upholstery
http://www.langdoninteriordesign.com/

Larry Dennis Company — upholstery supplies
http://www.larrydennis.com/

Lebaron Bonney — carpets, tops, and upholstery for '28-'54 Fords
http://www.lebaronbonney.com/

Naugahyde — upholstery
http://www.naugahyde.com/

McFarland Custom Upholstery
http://www.mcfarlandcustomupholstery.com/

RodDoors — inside door panels for hot rods
http://www.roddoors.com/

Sam's Trim Shop — custom upholstery
http://www.samstrim.com/

Santana Interiors — custom upholstery
http://www.santanainteriors.com/

SMS Auto Fabrics — 1940s and later upholstery fabric
http://www.smsautofabrics.com/

Wiring system manufacturers

American Autowire Systems
http://www.americanautowire.com/

AutoReWire.com
http://www.autorewire.com/

Centech Wiring
http://www.centechwire.com/

Haywire, Inc.
http://www.haywireinc.com/

Hot Rod Wires, Inc.
http://www.hotrodwires.com/

It's a Snap
http://www.itsasnapwireandcable.com/

Nesstronics Ink Publishing — Hot rod wiring technical articles
http://www.nesstronics.com/

Painless Wiring
http://www.painlesswiring.com/

Ron Francis Wiring
http://www.ronfrancis.com/

More interior parts manufacturers

Big Al's Carponents — machined aluminum interior parts
http://www.bigalscarponents.com/

Dynamic Control of North America, Inc. — Dynamat sound insulation
http://www.dynamat.com/

Electric-Life — power window kits
http://www.electric-life.com/

FatMat — FatMat sound insulation
http://www.fatmat.com/

Hotronics Products — electrical components
http://www.hotronicsproducts.com/

Quiet Ride Solutions — firewall insulators and automotive insulation
http://www.quietride.com/

R&R Wire Loom — switches for race car interiors
http://www.wirelm.com/

Remington Coachcraft — custom switches for custom interiors
http://www.remingtoncoachcraft.com/

Rodwell's Rodware — Windshields for 1932 Ford roadsters, designed by Stanley Wanlass and built by Dick Rodwell
http://www.roadsters.com/rodwell/

SO-CAL Speed Shop — custom switches and knobs
http://www.so-calspeedshop.com/

Specialty Power Windows — power window kits and windshield wiper kits
http://www.specialtypowerwindows.com/

Topsters International — tops for 1928-1934 Ford roadsters
http://www.topsters.com/

WOW Products — Prop rods for hoods and trunks
http://www.wow-products.com/