| L B | L Bernard | L & J | L & J Engineering |
| L & J Industie | L & J Teechnologies | L & M | L & M Construction Chemical |
| L & P Property Management | L & R | L 3 Communciations Narda Microwave | L 3 Communications |
| L 3 Communications Corp | L 3 Communications Display Systems | L 3 Communications Telemetry & Instrumentation | L 3 Henschel |
| L 3 Power & Control Systems Group | L 3 Spd Technologies | L A Starrett | L And H |
| L And J Engineering | L Bernard | L C Automation | L Com |
| L H Research | L J Industie | L J Technologies | L J Teechnologies |
| L L Little | L M Construction Chemical | L O W | L P E |
| L P Property Management | L Ron | L S And Co Inc | L S And Co Inc |
| L Siete | L Tec | L Tec Systems | L Tec Systems Lti |
| L Tech | L V S | L&H | L&h Power Suppliy |
| L&j Engineering | L&p Digital Technologies | L&R | L&s Bearing |
| La Man | La Marche | La Marche Manufacturing | La Spa |
| Laacke & Joys | Laaser | Lab A Tron | Lab A Tron Electro Systems Inc |
| Lab Alliance | Lab Crest Scientific | Lab Glass | Lab Industries |
| Lab Industries Inc | Lab Line Instruments | Lab Products Inc | Lab Safety |
| Lab Safety Supply | Lab Vision | Lab Volt | Labcard |
| Labconco | Labcrest | Labeca | Label Aire |
| Label All | Label Jet | Label Sensing Systems | Label Sensor |
| Label Systems Inc | Labelaire | Labelette | Labeling Systems Inc |
| Labeljet | Labelle | Labelon | Labelon Laberfinder |
| Laben | Laberfinder | Labfacility Temperature Technology | Labguard |
| Labinal | Labko | Labline | Labmaster |
| Labmetric | Labnet | Labo System | Labod |
| Labod Elecronic | Labod Electonic | Labod Electric | Labod Electronic |
| Labod Electronics | Labod Electronocs | Labom | Labom Industrielle Messtechnik |
| Labomatic | Laboratoire Central De Telecomm | Laboratoire Francais | Laboratory Supplies Co |
| Labotechnik | Labotek | Labour Pump | Labsmith |
| Labsphere | Labsystems | Labtech | Labtech Labtest Equipment Lacey Harmer |
| Labtest Equipment | Lacent Technologies | Lacey Harmer | Lach |
| Lacie | Laco | Lacrosse Manufacturing | Ladeau Manufacturing Corp |
| Ladish | Lady Pack | LAE | Lae Electronic |
| Laeis | Laem | Laempe | Laengerer & Reich |
| Laetus | Laetus Am Sandberg | Laetus Argus | Lafayette |
| Lafert | Lagan Press | Lagasse Brothers | Lagrand |
| Lagrange | Lagrange Instruments | Lagriss | Laing Thermotech |
| Laird Technologies | Lake Image Systems | Lake Monitors | Lake Monitors Inc |
| Lake Shore Cryotronic | Lake Shore Cryotronics | Lake Shore Electric | Lakeair |
| Lakeland Engineering | Lakeland Industries | Lakeshore | Lakeside |
| Lakewood | Lakewood Instruments | Lakewood Instruments Inc | Lakos |
| Lam Research | Laman | Lamarche | Lamb Electric |
| Lamba Systems | Lambda | Lambda / Qualidyne | Lambda Elec |
| Lambda Electronics | Lambda Electronics Corp | Lambda Electronics Inc | Lambda Electronics¸ Inc |
| Lambda Memic | Lambda Nemic | Lambda Novatronics | Lambda Physik |
| Lambda Power Supply | Lambda Qualidyne | Lambda Semiconductors | Lamberton |
| Lamborghini | Lambson | Lamda | Lamda Electronics |
| Lamda Nemic | Lamda/qualidyne | Lamiflex | Lamina |
| Laminar Flow Inc | Laminex | Lammers | Lammertz Industrienadel |
| Lamons | Lamort | Lamot | Lamotte Chemical Products |
| Lamp Recyclers | Lamp Technologies | Lampara | Lamson |
| Lamtec | Lancast | Lancaster Pump | Lance |
| Lance Industries | Lance Valve | Lancer | Land |
| Land Combustion | Land Infrared | Land Infrared Ltd | Land Instruments |
| Land Instruments Land Instruments | Land Mfg Co | Land Rover | Landa |
| Landert | Landert Landert Motoren | Landert Motoren | Landis |
| Landis & Gyr | Landis & Gyr Bulding | Landis & Staefa | Landis And Gyr |
| Landis And Staefa | Landis Gardner | Landis Gyr | Landis Tool |
| Landmark | Landmark Graphics | Lando Manufacturing | Landtechnik |
| Landware | Lane Science Equipment | Lang Apparatebau | Lang Mfg Co |
| Lang Pneumatic | Langbein & Engelbracht | Langco | Langen |
| Langford Sondmatic | Langston | Lanham | Lanly |
| Lanner Electronics | Lanng&stelman | Lanpower | Lanscan |
| Lansdale Semiconductor Inc | Lansing | Lansing Bagnall | Lansmont |
| Lanson | Lantech | Lantech Lantis | Lantis |
| Lantronix | Lanyu | LAP | Lapeer Knuvise |
| Laplink | Lapohn | Lapohn Industries | Lapp Cables |
| Lapp Insulator | Lapp Insulators | Lapp Kabel | Lapp Textima |
| Lapp Usa | Lappkabel | Larco | Larkin Power Components |
| Larko | Larko Electric | Larko Electronic | Larko Electronic/parking & Traffic Control Inc |
| Larm As Netolice | Larontrol | Larscom | Larsen |
| Larsen & Toubro | Larsen Systems Inc | Larsens | Larsens Manufacturing |
| Larson | Larson Davis Labs | Larus | Lasalle |
| Lasalle Machine Tool | Lascar | Lascar Electronics | Lasco |
| Lasco Bathware | Lascon | Lase R Shield Inc | Lasentec |
| Laser Alignment | Laser Components | Laser Devices | Laser Diode Inc |
| Laser Drive | Laser Drive Inc | Laser Indification | Laser Lighting |
| Laser Machining | Laser Max | Laser Measurement | Laser Measurement Industrial Sensors |
| Laser Mech | Laser Technical Inst | Laser Technics | Laseraim |
| Lasergraphics | Lasermike | Lasernet | Lasertechnics |
| Lasertron | Lasertron Inc | Laservision | Lasery |
| Laskar Electronics | Lasko | Lasser & Heurer | Lastec |
| Latch | Lateral Fold Baord | Lateral Fold Board | Lathem |
| Lathem Time | Lato | Latron | Lattice |
| Lattice Semiconductor | Lattice Semiconductor Corp | Lattner Boiler Co | Lau Fans |
| Lau Industries | Lau Propellers | Lauda | Lauer |
| Lauer Multivision | Lauer Nuertingen (hi Elektroni | Lauer Systeme | Lauer Systems |
| Laukhuff | Laumas | Laur Knudsen | Laureate |
| Laurel Electronics | Laurence Scott | Laurence Scott & Electro | Laurence Scott Electro |
| Laurenti | Laurier | Lauritz Knudsen | Lava |
| Lavallee & Ide | Lavatec | LAW | Lawler |
| Lawler Co | Lawrance Scott Motors | Lawrance Scott Motors Lawrence Equipment | Lawrence Equipment |
| Lawson | Lawson Fuses | Lawson Hemphill | Lawson Labs |
| Lawson Products | Lawson Screen Products | Lawton | Lawtronics |
| Layne Minnesota | Lazer Data | Lazerdata | Lb White |
| Lbfs France | Lc Automation | Lc Liquid Controls | Lc Packings |
| LCD | LCI | Lck | Lck Electronics Co Ltd |
| Lcl Electronics | LCN | Lcn Closers | Lcr |
| Ldep | Ldi Industries | Ldi Pneutronics | Ldj Elctronics |
| Ldj Electronics | Ldpe | Le Croy Corp | Le Mason |
| Le Material Telephonique | LEA | Lea International | Leach |
| Leach Corp/relay Group | Leacock | Leacock Leader Electronics | Leacock Machine Tool |
| Lead | Lead Detector | Lead Year Ent | Lead Year Enterprise |
| Lead Year Enterprise Co Ltd | Leader | Leader Electronics | Leader Instrument |
| Leader Instruments | Leading Edge | Leading Edge Fans | Leading Technologies |
| Leading Technology | Leadman Electronics | Leadtek | Leadtron Enterprise Corp |
| Leaf Technology Inc | Leag | Leak Finder | Leak Tec |
| Leakgun | Leaktite | Leap Technologies / Ctc Analytics | Lear Siegler |
| Lear Sieglier | Leatherman | Leblond | Leblond Leblonde |
| Leblond Makino | Leblonde | Leblow | Lebow |
| Lebow Products | Lechle Spraco | Lechler | Lechler Hydraulik |
| Lecia | Leco | Leco Corp | Leco Corporation |
| Lecroy | Lecto Products | Lectra | Lectric Lites |
| Lectro | Lectro Products | Lectrodryer | Lectromelt |
| Lectron | Lectron Corp | Lectron Corporation | Lectron Ledder Werkstaetten |
| Lectrotek | Led Inc | Led Technology Ltd | Ledder Werkstaetten |
| Lederle Pump | Lederman Elevator | Ledex | Ledtech Electronics Corp |
| Ledtronics | Ledu | LEE | Lee Air |
| Lee Company | Lee Dickens | Lee Dickens Ltd | Lee Electric |
| Lee Products | Lee Spring | Leece Neville | Leece Neville Leecraft Leecraft |
| Leecraft | Leecraft Manufacturing Co Inc | Leed & Northrup | Leeds |
| Leeds & Norhtrup | Leeds & Northrop | Leeds & Northrup | Leeds & Northup |
| Leeds And Northrup | Leeds Northrup Instruments | Leeds&northrup Systems | Leeman Labs |
| Leesam | Leeson | Leeson Electric | Leeson Electric Co |
| Leeson Electric Motors | Leeson Legend | Leeson Speedmaster | Leesona |
| Legacy | Legato Systems | Legend Valve | Lego |
| Legrand | Legrande | Legris | Lehigh |
| Lehigh Fluid Power | Lehigh Valley Electronics | Lehman Lathe | Lehmann Protech Agsa |
| Lehner Optoelectronic | Lei | Leibfried | Leibfried Maschinenb |
| Leica | Leica / Vistec | Leica Geosystems | Leica Microsystems Nussloch |
| Leica Microsystems Nussloch Leica Technology | Leica Technology | Leicenester | Leigh Instruments Ltd/components Div |
| Leightronix | Lein | Leine & Linde | Leine And Linde |
| Leine Linde | Leister | Leistritz | Leistungselektronic |
| Leistungsteil | Leitch | Leitenberger | Leitenberger Leitz |
| Leitz | Leitz Wetzlar | Lekebure | Lektornix Elestra |
| Lektronix | Lektrovend | Leland Faraday | Leland Faraday Electric Co |
| Lele | LEM | Lem Heme | Lem Instruments |
| Lem Usa | Lemacs | Lemaitre | Lemo |
| Lemo Electronic | Lemont Machine | Lempco | Lenape Forge Manways |
| Lenco | Lenco Inc | Lenco Exhaust Fans | Lenco Inc |
| Lenhardt | Lennox | Lennox/gei | Lenord Bauer |
| Lenord & Bauer | Lenord And Bauer | Lenord Bauer | Lenord Bauer Lenox Instrument |
| Lenovo | Lenox | Lenox Instrument | Lenox Tools |
| Lenseis | Lenser Filtration | Lenton Furnaces | Lentz |
| Lenz | Lenze | Lenze Ac Tech | Lenze Gmbh |
| Leo Electron | Leonard | Leonard & Bauer | Leonardo |
| Leopold | Leotek Electronics Corp | Lep | Lepel |
| Leroi | Leroi Dresser | Leroy Somer | Leroy Somer |
| Lers | Lesa Messtechnik | Lesco | Leser Safety Valve |
| Leslie | Leslie Controls | Lesmo | Lesson |
| Lesson Speedmaster | Lester | Lester Compu Time | Lester Electric |
| Lester Electrical | Lester Electronic | Lesueur Mfg Company Inc | Letco |
| Letellier | Letourneau | Leuco | Leudhardt |
| Leukardt | Leukhardt | Leukhardt Systems | Leuze |
| Leuze Electronic | Leuze Electronics | Leuze Elesta | Leuze Lumiflex |
| Leuze Lumilex | Level 3 | Level Lance | Level One Communications Inc |
| Level Seal | Levelite | Levelmark | Leveltec |
| Leviton | Leviton Manufacturing | Leviton Telcom | Levolor |
| Lewa | Lewa Herbert | Lewa Herbert Lewis Electronic | Lewis |
| Lewis Controls | Lewis Corporation | Lewis Electric | Lewis Electronic |
| Lex Air | Lex Products Corp | Lexair | Lexair Inc |
| Lexar | Lexel | Lexel Imaging Systems | Lexidata |
| Lexington Controls | Lexitek | Lexium | Lexmark |
| Ley Holdings | Leybold | Leybold Heraeus | Leybold Inficon |
| Leybold Leybold Inficon | Leybold Sogervac | Leybold Trivac | Leybold Vakuum |
| Leyland | Leyland Lfe Lfe Triplett | Lf Industrial Sys | LFE |
| Lfe Instruments | Lfe Triplett | LFM | Lfo Mürref Sweden |
| Lfo Mürref Sweden Lh Research | LG | Lg Electronics Usa | Lg Industrial Systems |
| Lg International | Lg Philips Displays | Lg Phillips | Lg Precision |
| Lgb | Lgo | LH | Lh Control |
| Lh Leybold | Lh Marshall | Lh Research | Lh Research Inc |
| Lh Research¸ Inc | LHA | Lhm | Li Aye Electric |
| Li Cor Environmental | Li Shin International | Liaaen Helitron | Liad Electronics |
| Liba | Liberty | Liberty Carton | Liberty Circuits |
| Liberty Electronics | Liberty Engineering | Liberty Fastener | Liberty Industries |
| Liberty Technologies | Liberty Wire & Cable | Libra Systems | Libra Systems Corp |
| Libratherm Instruments | Lichtregler | Licom | Licom Inc |
| Licon | Licon Itw Switches | Liconic Instruments | Lidkoping |
| Liebert | Lieberthal | Liebffan | Liebfried |
| Liebherr | Liebherr Veritronics | Liebherr Werk | Liedtke |
| Lieferung | Lien Electronics | Lien Engineering | Lifatec |
| Life Fitness | Life Link | Life Technologies | Lifefitness |
| Lift All | Lift Parts Mfg | Lift Tech | Liftall |
| Liftket | Liftmaster | Liftmaster Doors | Liftmoore |
| Lifto Mat | Liftomatic | Liftronic | Light Alarm |
| Light Corp | Light Machines | Light Seiki | Light Sheer |
| Lightalarm | Lightalarms Electronics | Lightech | Lightek |
| Lighting Components & Design | Lighting Components & Design Leecraft | Lighting Components & Design Leecraft Lightmakers | Lighting Systems |
| Lightmakers | Lightnin | Lightnin Lightning Controls | Lightnin Mixers |
| Lightning Controls | Lightning Jay | Lightning Jay Lightree | Lightolier |
| Lightree | Lightspan | Lighttools Research | Lightworks |
| Lignomat | Lignostone | Lika | Lika Electronic |
| Likom | Limab | Limco Manufacturing | Limit Tech |
| Limitorque | Limitorque Corp | Limitron | Limpet |
| Limtek | LIN | Lin Act | Lin Act Air |
| Lin Engineering | Linak | Linam | Linard |
| Linatex | Linatrol Profile & Shape Cutting Solutions | Linco | Lincoln |
| Lincoln Air | Lincoln Automotive | Lincoln Electric | Lincoln Industrial |
| Lincoln Laser | Lincoln Laser Polygon | Lincoln Lubricating Co | Lincoln Motors |
| Lincoln Pump | Lincoln Welder | Lindberg | Lindberg Blue |
| Lindberg Blue M | Lindberg/blue | Lindco | Lindco Inc |
| Lindco Inc | Linde | Linde Ag | Linde Hydraulics |
| Linde Mapag | Linde Welding & Cutting System | Linden Group | Lindgren Rf Enclosures |
| Lindley And Company | Lindly | Lindly & Co | Lindly And Co |
| Lindner | Lindner Electronic | Lindsay Manufacturing | Lindsey |
| Lindstrom | Lindtronix | Lindus | Line Electric |
| Line Master Switch | Line Power | Line Seiki | Line Seiko |
| Linear | Linear Alpha Inc | Linear Corp | Linear Corporation |
| Linear Insruments | Linear Instruments | Linear Laboratories | Linear System |
| Linear Systems | Linear Technology | Linear Technology Corp | Linear Tokai |
| Linear Tools | Linearity 1 Electronics | Linemaster | Linemaster Littel |
| Linemaster Switch Corp | Linesco | Linfinity | Linfinity Microelectr |
| Linfinity Microelectronics | Ling Electronics | Link | Link Belt |
| Link Controls | Link Controls Corp | Link Electric | Link Electric & Safety |
| Link Electric Link | Link Engineering | Link Lite | Link Logic |
| Link Systems | Link Technologies | Link Technologies Inc | Link Technology |
| Linke | Linkel | Linklater | Linklogic |
| Linksys | Linmot | Linn | Linn Gear |
| Linn High Therm | Linos | Linotor | Linotype Paul |
| Linseis | Linseis Messgeraete | Lintech | Lintra |
| Lintra Norgren | Linx | Lion | Lion Controls |
| Lion Electronics | Lion Enterprises Corp | Lion Precision | Lionmount & Co Ltd |
| Lipshaw | Liquatite | Liqui Box | Liqui Systems |
| Liquid Air | Liquid Carbonic Corp | Liquid Controls | Liquid Line |
| Liquid Metronics | Liquid Solids | Liquid Tight | Liquiflo |
| Liquiflo Endura | Liquitron | Liros | Lisco |
| Lisec | Lishin | Liskey Aire | Lisle Drill Grinders |
| Lisle Metrix | List Magnetik | List Magnetik Litef Gmbh | Lista |
| Lista Manufacturing | Lister | Lit Design | Litchfield |
| Lite On | Lite On Ltd | Litek | Liteon |
| Liter | Litetronics | Lithec | Lithibar Matik |
| Lithic Systems Inc | Lithonia | Lithonia Lighting | Lithonia Liton Industries |
| Liton Industries | Litre Meter | Litremeter | Litronic |
| Littelfuse | Littelite | Little Fuse | Little Giant |
| Little Giant Pump Company | Littlefuse | Litton | Litton Fibercom |
| Litton Ind Auto | Litton Industries | Litton Itek | Litton Kester Solder |
| Litton Servo Techn | Litton Solid State | Litton Systems | Litton Systems Inc/airtron Div |
| Litton Veam | Livingston | Livingston & Co | Livingston Weldwise 2400 |
| Lixi Inc | Liyan Electric | Liyitec | Lizenz Disc Instruments Honywell |
| Lj Wing | Ljl Biosystems | Lju | Lju Gmbh |
| Lk Nes | Lk Nes Scr Fuses | LKB | Ll Little |
| Llitton | Lloyd Controls | Lloyd Doyle Ltd | Lloyd Dynamowerke |
| Lloyd/redco | Lloydredco | Lm Robbins | Lmb Grund |
| LMC | Lmc Control Unit | Lme | Lmi |
| Lmi Automotive | Lmi Connector | Lmi Liquid Metronics | Lmi Milton Roy |
| Lmi Selcom Industrial Sensors | Lmi Technologies | Lmi Technologies Inc | Lmidin |
| Lmr Systems | Ln Ltd | LND | Lnd Inc |
| Lns | LNT | Load Cell Central | Load Controls |
| Load Controls Inc | Load Controls Inc | Load Limiter | Load Sentinal |
| Loadmaster | Lobster | Loc Line | Lochinavar |
| Lochinvar | Lock | Lock Inspection Sys | Lock Inspection System |
| Lock Inspection Systems | Lock Inspection Sytems | Lock Instrumentation | Lock Metal Check 9 |
| Lockformer | Lockheed Martin | Lockheed Martin Corp | Locknetics |
| Locktronix | Lockwood | Lockwood Mfg Co | Lockwood Mfg Co |
| Locon | Locon Sensor Systems | Loctite | Lodding |
| Lodec | Lodec Axle Scale | Lodge & Shipley | Lodge Cottrell |
| Loepfe | Loesche | Loet | Loetseite |
| Log Tec | Logah | Logan | Logan Enterprises |
| Logansport Machine | Loge | Logeman Brothers | Logetronics |
| Logetronics Inc | Logic | Logic Approach | Logic Aquarius |
| Logic Beach | Logic Board 2 | Logic Devices Inc | Logic Inc |
| Logic Program | Logic Sciences | Logic Services | Logic Systems |
| Logic Technologies | Logical Design | Logical Devices | Logical Products |
| Logika | Logiplex | Logisticon | Logistics Data |
| Logisys Com | Logitec | Logitech | Logitek |
| Logitron | Logomat | Logosol | Logosol Inc |
| Logoswed | Logoswed Ab | Logosystem | Logstrop |
| Loher | Loher Flender | Loher Gmbh | Lohja Corp |
| Lohja Corporation | Lohmeier Schaltschrank Systeme | Lohse | Lohse Armaturen |
| Lohuis International | Loistevalo | Lola Electric | Loma |
| Loma Engineering | Loma Systems | Lomar Srl | Lonati S P A |
| Lonato | Londex | London Electronics | Lonergan |
| Long Airdox | Long Fellow | Long Lake Ford Tractor | Long Lake Ford Tractor Longfellow |
| Longfellow | Longford | Longford Elec Designs | Longford Electronic |
| Longford Equipment | Longwell | Loos | Loos & Co |
| Lorain | Lorain Megahertz Power | Lorain Products | Loral |
| Loral Aeronutronic | Loral Fairchild Imaging Sensors | Loral Microwave/frequency Sources | Loran |
| Loran W Utilities | Loranger | Loras Industries Inc | Lord |
| Lord Corporation | Lord Label | Lord Label Sys Inc | Lord Label Systems |
| Lord Manufacturing | Lordkim | Loreme S A | Lorentzen & Wettre |
| Lorenz | Lorimer Controls | Lorlin | Lortec Power Systems |
| Losi | Lotseite | Lotto | Lotus |
| Lotus Development | Lotus International | Louden | Louis Allis |
| Louis Wachenhausen | Louisiana Electric | Louisville Ladder | Louisville Manufacturing |
| Lourdes | Lourdes Lovato Contactors | Lourdes Systems | Lovato |
| Lovato Contactors | Love | Love Controls | Love Joy |
| Love Joy Electric | Love Joy Sier Bath | Lovejoy | Lovejoy Electronics |
| Loveland | Loveshaw | Lovibond Tintometer | Low |
| Low Peak | Lowara | Lowe & Fletcher | Lowell |
| Lowell Technologies | Lowells Auto Parts Source | Lowrance | Lowrance Electronics |
| Loyla | Loyola | Loytec | Lozier |
| Lp Elektronik | Lpc Electronic | LPE | Lpe Lpkf |
| Lpg Industries | Lpi Inc | Lpkf | Lpm |
| Lps Laboratories | Lps Research Laborat | Lrc | LRP |
| Ls | Ls 1c Power Supply | Ls And | Ls And Co Inc |
| Ls Industrial Systems | Lse | LSI | Lsi Computer Systems |
| Lsi Computer Systems Inc | Lsi Computers | Lsi Logic | Lsi Logic Corp |
| Lsm Instruments | LSN | Lsp | Lsp Industries Inc |
| Ltd | Lte Scientific | LTI | LTN |
| Ltn1 | Ltronix | Lts Scale Corp | Lubcke Vario |
| Lubcon | Lube | Lube Corp | Lube Devices |
| Lubecon | Lubek Schneider | Luber | Luberfiner |
| Lubesite | Lubetronics | Lubrication Technologies | Lubriplate |
| Lubriquip | Lubriquip Trabon | Lubrizol | Lucalox |
| Lucalox Lucas Control Systems | Lucas | Lucas Control Systems | Lucas Controls |
| Lucas Deeco | Lucas Deeco Corp | Lucas Ledex | Lucas Machine |
| Lucas Nova Sensor | Lucas Novasensor | Lucas Schaevitz | Lucas Schavitz |
| Lucas Stability Electronics Ltd | Lucasey | Lucasll | Lucent |
| Lucent Technologies | Lucht | Lucidyne | Lucifer |
| Lucifer Steinebron | Lucifer Steinebron Luciidyne | Luciidyne | Lucius & Baer |
| Lucius&baer | Lucky | Ludecke | Ludi Electronic Products Inc |
| Ludl Electronic | Ludl Electronics | Ludlow | Ludlow Textiles |
| Ludlum | Ludlum Measurements | Ludolph | Ludolph Ludwig Mohren |
| Ludwig Mohren | Ludwig Schneider | Luedecke | Lueraflex |
| Luerssen Fr Werft | Luetze | Lufkin | Lufkin Cooper Tools |
| Lufran | Luftfilterbau | Lufttechnik Masch | Luk |
| Lukas Hydatronik | Lukens | Luma | Lumacell |
| Lumapro | Lumark | Lumatic | Lumatrol |
| Lumatron | Lumax | Lumax Industries | Lumax Lighting Systems |
| Lumberg | Lume Boxes | Lumel | Lumel Sa |
| Lumen | Lumenis | Lumenis Inc | Lumenit |
| Lumenite | Lumenite Control | Lumenite Control Tech | Lumenite Control Technology |
| Lumex | Lumex Opto/components Inc | Lumiance | Lumiance Concord Sylvania |
| Lumidor | Lumiere Design | Lumiere Lighting | Lumiflex |
| Lumiglas | Lumina | Lumina Power | Lumina Power Inc |
| Luminator | Luminator Gulton | Luminex | Luminia |
| Lumisys | Lumitas | Lumitask | Lumitex |
| Lumocol | Lumolux | Lumonics | Luna Innovations |
| Luna Tech | Lunar | Lund Instrument Engineering | Lundahl |
| Lundell | Lung Meng | Lunkenheimer | Lunkenheimer Valve |
| Lust | Lust Antriebstechnik | Lust Drivetronics | Lust Electronic |
| Lust Electronic Systems | Lust Electronics | Lust Hybrid Technik | Lut |
| Luth | Luther Werke | Lutron | Lutron Electronics Company |
| Lutz | Lutz Kracht Lukra Pumpen | Lutz Pump | Lutze |
| Luvra | Luwa | Luwa Ks Luftfilter | Luxalite |
| Luxar | Luxar Corp | Luxell Technologies | Luxnet |
| Luxo | Luxo Asa | Luxon | Luxor |
| Luxtrol | Lv Power | LVD | Lvd Electronics |
| LX | LXD | Lxd Inc | Lxe |
| Lxe Inc | Lycos Wausau | Lyle Corporation | Lyman |
| Lymco Elect | Lymco Electroncs | Lymco Electronics | Lynair |
| Lynch Corp/m Tron Industries Inc | Lynde The | Lyndex Corp | Lyngso Marine |
| Lynn Mcgruffy | Lynn Mcguffy Co | Lynn Wire | Lynx |
| Lynx Motion Technology | Lynx Pcb | Lynx Touch Solutions | LYO |
| Lyon | Lyon Industries | Lyon Metal Prod | Lyon Safety |
| Lyon Workstation | Lyons Electronics | Lysol | LYT |
| Lyte Optronics | Lytherm | Lytherm M H | Lytron |
| lzr | Lzr Electronics |
