- Archie's Iowa Rockwell Tavern
- Archtiekt Salon
- Aria Nail Salon
- Aria Nail Spa
- Arigato Market
- Ark Boating, LLC
- Armand Lee & Company / Seaberg Picture Framing
- Art + Science Salon
- Art And Company
- Art By Annikah
- Art Me Nails
- Art Pm
- Art Spirit Tattoo
- Art's Drive Inn
- Artbuilds
- Artemio's Bakery #2
- Artemio's Bakery #2
- Ash & Gold
- Ash & Ivory
- Ash And Ivory
- Ash Beachwaves
- Ash's Bucktown Smoke Shop INC.
- Ash's Tobacconist Inc.,
- Ashland & Division Currency
- Ashland Eye Care
- Ashland Market
- Ashland Spa
- Ashlee Kingery Enterprises
- Ashley Grodnick
- Asia Nails
- Asrai Garden
- Asurion Tech Repair & Solutions
- At&t Authorized Retailer #4104
- At&t Mobility
- Atlas Salon
- Atmos Coffee Shop
- Atomic Imaging INC
- Atomic Land
- Atr Ashland
- Atsumeru
- Attack Taekwondo INC.
- Audi Chicago
- Audiotree, LLC
- Augusta & Ashland Cleaners
- Augusta & Paulina Service Sta
- Augusta Shell
- Austin James
- Authentic Skin
- Autism Speaks
- Auto Accessories Garage
- Autosport Chicago
- Autozone #4429
- Avdg
- Avenir Creative, LLC
- Awaken Tattoo & Gallery
- Axe Capoeira Chicago
- Aya Pastry
- Aztec Dave's Food Truck
- Aztec Dave's Tequila Bar & Grill, INC.
- Azul
- B.b.m. Packing Co., INC.
- B.e.g. Heating & Cooling INC
- B&b Building Maintenance, INC.
- Bacci Cafe & Pizzeria, LTD.
- Bacci Pizzeria On Chicago Ave
- Baci Hair & Nail Salon
- Backstory Tavern
- Bad Johnny's
- Badazznailzz
- Badger/murphy Food Service
- Baggu
- Bailey Mcpherson
- Bake
- Bakit Box
- Bakr LLC
- Balanced Flow Medgym
- Balanced Flow Wellness
- Ballex The Space
- Ballogg Properties
- Bandit Running
- Bang Salon 4, LLC
- Bangers & Lace
- Bar Bambi
- Barak Studios LLC
- Barbara's Florist-gift Shop
- Barbaro
- Barcocina
- Bari
- Bark & Play Chicago, INC.
- Barnes & Noble Booksellers INC
- Barrio Ink Tattoos
- Barry's
- Bartaco
- Bartoli's Pizzeria
- Basecamp
- Basecamp LLC
- Bbps LLC
- Bc Merchants
- Be Kids Cafe
- Beadniks
- Beanokio Cafe LLC
- Beanokio Coffee & Desserts LLC
- Bear Stewart Corp
- Bear Stewart Foods
- Beard Papas
- Beat Kitchen On The Riverwalk
- Beatnik & Goodfunk
- Beau Barry
- Beauty Bar
- Beauty Commons
- Beautyhood Limited
- Becker Logistics, LLC
- Becker Works, LTD.
- Beeee NFP
- Beefyboy
- Beetky Sterling Silver Jewelry
- Bell, Stewart & Phelps, LLC
- Bella Notte
- Belle Atelier
- Bellissimo Frangrances
- Bello Gonzalez, INC. DBA Sazon Cubano 2.0
- Bellows Film Lab Chicago LLC
- Belmont Army Worn
- Belvin J & F Sheet Metal Co
- Benches On Division
- Bendicion Dry Bar
- Benefit Cosmetics
- Bernacki & Associates, INC
- Bernadette Arviso
- Bert's Car Wash & Detail Center
- Best Florist
- Best Sub
- Best Sub #2
- Beta Boutique
- Betancourt Realty
- Beverly J. Kagy-mandolini
- Beyond Green Partners
- Bianca Berger Snyder
- Bianca's Burgers
- Bickerdike Redevelopment
- Big & Little's Restaurant
- Big Chicago, INC. DBA Prysm
- Big City Optical
- Big Delicious Planet
- Big Sauce
- Big Shoulders Coffee
- Big Shoulders Coffee Works
- Big Shoulders Yoga
- Big Star
- Big Star Mariscos
- Bigane Paving Co
- Bigsuda
- Bilalahmed Rushnaiwala
- Billing Bros Heat & Cooling
- Biokinetix
- Birkdesign INC.
- Bitcoin Of America
- Bizarre Bucktown
- Bks Remodeling LLC
- Black Beetle Bar & Grill
- Black Bobbin, LLC
- Black Diamond Solutions
- Black Dog Gelato
- Black Hole
- Black Luxe Candles, LLC
- Blackwood Bbq
- Blakeley Pearson
- Blaze Chicago LLC
- Bliss Weddings & Events INC.
- Blo Blow Dry Bar
- Bloom&buff
- Blossom Leaders Academy
- Blue Bell Mart
- Blue Line
- Blue Line Barbers
- Blue Octopus LLC
- Bluebay Holdings LLC / Dba: School Of Rock Chicago West
- Bluedog Design, LLC
- Bluemercury
- Blueprint By Rbo LLC
- Blueprint Fitness
- Bluestem
- Blush Electrolysis & Skincare
- Blush It Off Hair Pllc
- Blvdier
- Bm International Builders, INC.
- Bmg Model And Talent
- Bocadillo Market
- Bodega Bay Mart
- Bodega Division
- Bodega Vintage
- Body High Fitness
- Bodybar Pilates Wicker Park
- Bodywise Day Spa & Massage INC.
- Boehlen Curation
- Boeufhaus
- Bohemia Mechanical Co.
- Bombay Dream, LLC
- Bon Bon Sandwiches
- Bonchon