- Lawrence J. Shoenberg
- Lawrence Moser Breed
- LawRoom
- Lawson
- Lawson Software Inc
- Laxmikant (Sanjay) Kale
- Layer 7 Technologies
- Layered, Inc.
- LayerWalker
- LCS Technologies
- LEAD IT
- LEAD Technologies
- Leading Edge Hardware Products, Inc.
- Leading Edge, LLC.
- LeadingEdge Technology Ltd.
- LeadMD
- Leadspace
- LeadsToday
- Leadtek
- LeanData, Inc.
- LeanDog
- LeanLogistics
- Leaphon
- Leaphon Tele-Jeux TJ-140
- Lear Siegler, Inc.
- Learn.com
- Learnalot
- Learning Company, The (TLC)
- Learning ZoneXpress
- Leawo Software
- LEC-2010
- LEC-2026
- LEC-2050
- LEC-2055
- LEC-2110
- LEC-2126
- LEC-2220
- LEC-2270
- LEC-2300
- LEC-2310
- LEC-2312
- LEC-5011
- LEC-5510
- LEC-5510V
- LEC-5520
- LEC-7000
- LEC-7020
- LEC-7050
- LEC-7100
- LEC-7105
- LEC-7900
- LEC-7920
- Lee de Forest
- Lee E. McMahon
- Lee Felsenstein
- Lee Scott
- Left Sidebar
- Leibniz’s calculating machine
- Leica Geosystems AG
- Leiki Ltd.
- Lekha Wireless Solutions Private Limited
- LeMel Hebert-Williams
- Lemote
- LendFriend
- Lenel Systems International
- Lenovo B460
- Lenovo B470
- Lenovo B560
- Lenovo B570
- Lenovo C340
- Lenovo Essential C100
- Lenovo Essential C200
- Lenovo Essential C300
- Lenovo Essential C315
- Lenovo Essential H200
- Lenovo Essential H210
- Lenovo Essential H215
- Lenovo Essential H220
- Lenovo Essential H230
- Lenovo Essential H320
- Lenovo G455
- Lenovo G460
- Lenovo G470
- Lenovo G475
- Lenovo G480
- Lenovo G530
- Lenovo G550
- Lenovo G555
- Lenovo G560
- Lenovo G570
- Lenovo G575
- Lenovo G580
- Lenovo G585
- Lenovo G770
- Lenovo G780
- Lenovo Group Limited
- Lenovo H430
- Lenovo H520s
- Lenovo IdeaCentre A520