- J C Automotive Sounds/alarms
- J. Recob Bookkeeping, LLC
- J.j. Peppers Food Store
- Jack And Gingers
- Jack's
- Jacky Shop 4 Less, INC.
- Jaerin Son
- James E Leonardson
- James Walsh
- Jamie And Eric Photography
- Jason Adlesick
- Jason Donajkowski
- Jason Lewis Furniture INC.
- Jb Custom T-shirts INC.
- Jc Licht Ace Logan Square
- Jck's International Bridal Boutique
- Jeffrey S Mills
- Jeni's Splendid Ice Creams
- Jennifer Shaffer Photography Company / Logan Square Photo
- Jeremy Schreiber
- Jersey Mikes Subs
- Jesseelite
- Jessy's Shoe Repair
- Jesus, Bread Of Life Parish
- Jet's Pizza - Il24
- Jibarito's Y Mas
- Jibaritos Y Mas Dine In
- Jim's Original Elston
- Jimenez Coin Laundromat
- Jimmy Beans, A Logan Square Roaster
- Jimmy Nails
- Jinsei Motto
- Jo Snow
- Joann Store #2117
- Joaquin Horton
- Joba Foods & Bakery
- Joe's Barbershop Chicago
- Joe's Expert Auto Service
- Joebvegan, LLC
- John Lizzo
- John's Pizzeria
- Johnstone Supply
- Joker's Cajun Smokehouse
- Jomon Sushi
- Jonathan A Klemm
- Jonathan A. Ruiz
- Jose Lagos
- Joy Chicago
- Joyeria Bahena
- Juan Antonio Del Real
- Juanita Tirado
- Juicerx
- Juicerx Bucktown LLC
- Jules Pet Shop, LLC
- Justin Gonzalez
- Justin J Smith
- K And S Cleaners
- K. Armstrong Historic Resource Consulting LLC
- K.m.g. Maintenance INC.
- Kaleidokids
- Kaleidoscope Health Ventures
- Kane Graphical Corporation
- Kangroo Korner Learning Center And Nursery, INC.
- Kanya Lounge
- Kara Schultz Voice Lessons
- Karen Barbe
- Karen Marie Salon
- Karra Elyce Linney
- Kate Gannon Consulting LLC
- Katelyn Johnston
- Katherine Anne Confections
- Kathleen Chee
- Katrinka Riordan
- Keke Nail And Spa
- Kelsey Fagan
- Kenzie Beauty Studio
- Kfire
- Khoi LLC
- Ki-zenn Wheeler
- Kie-gol-lanee
- Kiki Yablon Dog Training
- Kimball Scoops Lamichocana
- Klen Property Services
- Kma Interiors
- Knot Yos
- Kobamont LLC
- Kohl's
- Kohlman Chutes INC
- Kristina Pellitteri
- Kroh-wagner INC
- Kurt Schultz
- Kwill Ccr Operations LLC
- Kyoten
- Kyoten Next Door
- L & T Auto Service INC.
- L & T China Fast Wok INC.
- L Stop Tours
- L.a. Tan
- L' Patron
- L' Patron
- L'flamingo Liquors, INC.
- L&j Electrical Heating And Air, INC.
- La Bomba Food
- La Bomba Restaurant
- La Boulangerie
- La Boulangerie De Maggy LLC
- La Canasta Bakery, INC.
- La Caridad En
- La Colombe Torrefaction
- La Escuelita Numero Dos
- La Estrella Bakery, INC.
- La Fitness
- La Licor Panamericana
- La Lunita
- La Michoacana Logan Square
- La Michoacana Logan Square By Frida
- La Victoria Barra + Cocina
- La-z-boy
- Lair Atelier
- Lang Exterior
- Lardon & The Union Taproom & The Meadowlark
- Larissa's Restaurant Corp.
- Larrys Service Station INC
- Las Americas Printing
- Las Animas LLC
- Las Asadas
- Las Asadas
- Las Vegas Nite Club INC
- Latin American Motorcycle Association
- Latin Service
- Latrunda D. Ellis
- Lawn Of The Land Luxe Landscaping & Stone LLC
- Laystrom Manufacturing Co
- Lazy Camel & Western Wine & Spirits
- Le Bouchon
- Le Cafe Grill
- Leadtooth Web & Print
- Leana Brows Beauty 8, LTD
- Lee Nails
- Lee Nails
- Lee's Chop Suey Ii INC.
- Lemmings
- Lettering Works
- Lglamour INC.
- Light Touch Designs, INC.
- Liliana M. Cuevas
- Lina' S Beauty Salon
- Linda & Terry's Corner
- Linda's Creations Flower's & Gift Shop
- Linx
- Liraz Drillman
- Little Achievers Academy
- Little Broken Things
- Little Einsteins Daycare, INC.
- Little Mel's Hot Dog
- Little Pickle
- Little Ripper Skateboarding
- Llhs LLC
- Local Pastures, LLC
- Logan 11
- Logan Arch
- Logan Auto Fix
- Logan Hardware Arcade
- Logan Liquor
- Logan Luxury Furniture Imports
- Logan Mercantile
- Logan Parlor
- Logan Smoke Hub
- Logan Square Acupuncture
- Logan Square Animal Hospital
- Logan Square Auditorium
- Logan Square Auto Repair
- Logan Square Barber Shop Ii
- Logan Square Funeral Home
- Logan Square Hand Car Wash & Detail
- Logan Square Laundry
- Logan Square Nail Salon
- Logan Square Pantry
- Logan Square Pest Control INC
- Logan Square Petshoppe
- Logan Square Pilates
- Logan Square Pilates And Core
- Logan Square Tattoo
- Logan Square Tobacco
- Logan Vegan
- Long Term Sku Ace Sushi @fresh Thyme 107
- Longman & Eagle
- Longman & Eagle
- Lookswell Painting, INC.
- Los Amigos Books
- Los Amigos Books
- Lost Girls
- Lottie's Pub
- Lou Malnati's Pizzeria
- Loulou / Lula Cafe Catering
- Love Your Fat Personal Chefs, LLC
- Lucky Trendy Sushi
- Lucky Vito's Pizzeria
- Lucy's Hair Design
- Luis F Gallego