- Life Force Arts Foundation
- Life Of Vintage
- Life Spring Health Food
- Life Storage
- Lift Conversions
- Lilly Carr Art
- Lincoln Park Athletic Club, INC.
- Lincoln Park Plaza
- Lincoln Park Plaza, LLC
- Lincoln Tap Room
- Linda Horton Photography
- Linden Workshops
- Lindsay Baskin
- Lindsay Station
- Linzy Nail And Spa
- Linzy Nails And Spa
- Liquefied Beauty
- Lisa Schenkman
- Lisa Sorenson
- Lisa Spring Studio LLC
- Little Barn Apothecary
- Little Green Tree House
- Little Marvels Early Childhood School
- Little Spoon Coffee
- Little Wok
- Loba Pastry + Coffee
- Logika Corporation
- Lola & Bowie
- Loop Vintage
- Loop Works
- Lori' S Gifts # 215
- Love You Nail Studio
- Love, Charlie
- Love's
- Lovely Little Things
- Lovelycv Salon
- Lovesac
- Lovin' Tails
- Lowcountry
- Lowitz & Co.
- Lu's Nail Boutique
- Lucio Sanchez
- Lucky Dorr
- Lucky Dry Cleaners
- Lucky Dry Cleaners
- Lucky Horseshoe Lounge
- Lucky Strike
- Lucky Strike
- Lucky's Sandwich Company
- Luckycat
- Luis Ernesto Martinez Villanueva
- Luke Lilly
- Lululemon Athletica
- Lumera Nails
- Lumina Cleaning & Organizing LLC
- Luminere Esthetics And Wellness
- Luminous International Fashion
- Luna Flowers
- Lush Fresh Handmade Cosmetics
- Lush Fresh Handmade Cosmetics
- Lusha Pizza
- Luxe Financials LLC
- Luxe Nest LLC
- Lydia's Natural Hands, LLC
- Lyla Spa INC.
- Lynn's Hair & Spa
- Lyon Communications LLC
- Lyons Family Eye Care
- M & G Pizza
- M & M Financial Consulting, INC.
- M2 Boutique
- Made In Soul
- Madeline Dunigan
- Madewell
- Madilyn Dykstra
- Madison Sings
- Madonna Campus
- Magic Flowers Chicago
- Mahanakhon Noodle Bar
- Maija Martin Photography
- Maison Marcel
- Maison Marcel
- Maison Parisienne
- Majestic Hotel
- Make Good Stories
- Malosa Company, LLC
- Mane Lounge
- Mane Parlor
- Manely Cuts&blowouts
- Manor Cleaners
- Manus Mcclafferty
- Maplewood Media Partners LLC
- Maria Jimenez
- Maria Muza Spring
- Mariano's #8538
- Mariny's Shoe Repair
- Mark Twain Cleaners
- Marketa Sivek Gallery
- Marshalls #0646
- Marshfield Consulting
- Martial Arts For Life
- Martin Conneely
- Mary Cook Associates
- Mary's Hot Nails
- Mary's Hot Nails 2
- Mary's Hot Nails, LLC
- Massage Envy
- Massage Envy Spa
- Matcha En
- Matilda
- Matisse Tavern & Grill
- Matsuya Japanese Restaurant
- Matthew Lind
- Matthew Nelson
- Mattress Firm #119083
- Mattress Prime
- Maureen Harney
- Max And Issy's
- Max Panitch, INC
- May Therapeutic Spa, LLC
- Maydel, LLC
- Mb Nail.com
- Mc Donald' S # 6888
- Mcdonald's
- Mcdonald's
- Mcdonald's #38631
- Mckillip Animal Hospitals
- Mdm K-spa
- Me U Nails & Spa INC.
- Meatball Bliss
- Megan Black
- Melissa Heckman
- Meltostudio LLC
- Memoire Studio
- Men's Room Chicago
- Mercury Theater
- Merkle's Bar & Grill
- Merry Music Makers
- Merry Music Makers, LLC
- Mesi Woodshop LLC
- Metro
- Metro Salon Suites
- Mf Aesthetics
- Mf Clark Box LLC / The Ups Store
- Mf Tacos
- Mfk
- Mia Francesca Corp.
- Mia Scornavacco
- Michael Barry
- Michael D. Giese Consulting
- Michael Griffith
- Michael Harris
- Michael Segal Consulting
- Michaels Barber Chair
- Michaels Stores
- Michele Taylor Photography
- Midtown True Value INC
- Midwest Pro Sound & Lighting
- Midwest Valet
- Mighty Maids
- Mightybytes, INC.
- Mild2 Spicy
- Milk And Tea Clothing
- Milk And Tea LLC
- Mill
- Million Dollar Highway LLC
- Milly's Pizza In The Pan
- Milt's Bbq
- Milwaukee Terrarium Company
- Min Min Cafe
- Mindful Baking
- Mini Donut Factory
- Mini Nails
- Mini Nails By Mindy
- Minit Fashion LLC
- Mishkan Chicago
- Miss B's Tea Time
- Misty Moon Design
- Mixteco
- Mk Noodle
- Mk Oral Facial Design
- Moe's Cantina
- Mohammed Aijaz
- Molinaro Jiu Jitsu
- Momo Factory
- Mona's Beauty Salon
- Monsignor Murphy's
- Montraps Publishing
- Moon Woman Vintage
- Mordecai Brown
- More Than Money
- Morning Bird Studio LLC
- Moroccan Beauty Rituals, LLC
- Mortar & Pestle
- Mothlight Pictures INC.
- Mount Sinai Resale Shop
- Move With Melissa Personal Training
- Movement Wrigley
- Mr. Nice Guy Cbd Kratom
- Ms. T's