- Ready Response Medical Staffing
- Real Estate Analysis Corporation
- Real Freedom
- Realogic Analytics
- Rebeca Barroso
- Reckless Records
- Reckless Records
- Record Copy Services Co
- Recsolu, INC DBA Yello
- Red Mango
- Red Parking
- Red Sky Technologies INC.
- Redridge Finance Group LLC
- Redshelf
- Reed Burkett Lighting Design (rbld)
- Reel Captivation LLC
- Reelcrafter
- Refresco
- Regal Business Machines
- Regal Jewelry
- Regatta Cleaners
- Regus Management Group LLC
- Reina Jewelry Design And Diamond Inc.,
- Relentless Barbershop
- Relevant Healthcare Cost Containment
- Remedy At Aon Center
- Remington's
- Remote Lines
- Remy's Parking
- Rena's Fudge Shops, INC. / Block 37 Starbucks
- Renaissance Chicago Hotel
- Renedgade Craft Fair INC.
- Report Services
- Republic Equity Credit Services, INC.
- Reputation
- Reputation Partners
- Res Environmental Operating Company, LLC
- Res Publica Group
- Research USA INC.
- Reserv
- Residco
- Residence Inn Chicago Downtown
- Resource Systems Group INC.
- Responsible Investment Group LLC
- Retirement Plan Advisors
- Retirement Plan Advisors Services, LLC
- Retirement Plan Advisors, LLC
- Rett's Personality Charms
- Revelry Tours
- Review Trackers, INC
- Revival Food Hall
- Rex Travel Organization, INC.
- Rg Diamonds, LLC
- Rgbeauty LLC
- Rgi
- Rgm Recovery LLC
- Rgp
- Rhizometry LLC
- Rhr International LLP
- Richard A Scruggs
- Richard Butler Group LLC
- Ricky Lam Jewelers Co.
- Rico Computers Enterprises, INC.
- Ricoh Usa, INC.
- Ricondo & Associates, INC.
- Rider Levett Bucknall LTD.
- Riic The Jeweler
- Rise: An Acton Academy
- Risk Enterprise Management Limited
- Risk Management And Information Systems. INC.
- Rites Of Wellness
- River City Market
- Riverpoint Wealth Management
- Rivers
- Rl Jewelers
- Rlm Media
- Rmb Capital Management, LLC
- Ro Health, LLC
- Roanoke
- Robert B Scott Ocularists LTD.
- Robert Daniels Florist INC
- Robert Half International INC
- Robert W. Baird & Co., Incorporated
- Roberta's
- Robotic Systems Integration
- Robt Bein/geof Fushi INC
- Rock Candy By Helen
- Rockefeller Capital Management
- Rocky Mountain Chocolate Factory
- Rogers Macjohn LLC
- Rogue Refined Interior Design LLC
- Rohan Gems INC
- Roll Up
- Roosevelt Cleaners Iii, INC
- Roosevelt University Coffee Shop
- Rosati's Grant Park
- Rosati's Pizza Loop
- Rosatis Pizza Loop
- Rosatis Pizza Loop
- Rosebud Bloom Boutique
- Rosetta Italian
- Ross B Berger
- Ross Dress For Less
- Rosstelecom
- Rothschild Investment Corp
- Rothschild Liquor
- Roti
- Roti
- Roti 200 West Randolph, LLC
- Roti Mediterranean Grill
- Roti Mediterranean Grill
- Roti Modern Mediterranean
- Roundarch, INC.
- Roy Talman & Associates, INC
- Royal Bee
- Royal Falcon Publisher
- Royal Jewelry Shop, INC.
- Royal Key Parking LLC
- Royal Pearl
- Royal Pearl
- Royal Sonesta Chicago And Hoyt's American Tavern
- Royal Sonesta Chicago Riverfront
- Royal Star INC
- Rozay's
- Rp Group International, INC.
- Rps Group, INC
- Rsm Us LLP
- Rsm Us Wealth Management LLC
- Rsquared
- Rti International
- Rtr Hr And Staffing Services
- Rubys Soulfood Downtown
- Runway Growth Capital LLC
- Rush Physical Therapy
- Russell Reynolds Associates, INC.
- Russian Tea Time
- Rw Ventures LLC
- Rxo Capacity Solutions, LLC
- Ryan Enterprises Group LLC
- Ryan Specialty
- Ryan Specialty Group, LLC
- Ryan Us Tax Services
- Ryerson Procurement Corporation
- Ryo Sushi
- S & M Jewelers
- S & V Jewelry
- S2 Express Grill
- S8 LLC
- Sabrina Stroud
- Sacred Goddess Oasis
- Safespeed, LLC
- Sagar & Neel Corporation
- Sagasu Search
- Sage Health Strategy
- Sagems
- Sagence, INC.
- Sailing With Joe LLC
- Sal Gadd, INC. DBA O'leary's Public House
- Sal Marcus Consulting LLC
- Salads Up
- Salesforce.com, INC.
- Sally Beauty Supply #3006
- Salon 730 Beauty & Wellness
- Salon Lofts
- Salon Maj
- Saltmara South Loop
- Saltshaker Productions
- Sam Gullo
- Sam Schwartz Consulting, LLC
- Sam Schwartz Engineering, D.p.c.
- Sam The Shoe Doctor
- San Lae Lae Cho
- Sanctuary Securities, INC.
- Sanderson Asset Management, INC.
- Sandmeyer's Bookstore
- Sandmeyer's Bookstore INC
- Santiago Jewelry
- Sard Verbinnen & Co., LLC
- Save Our Youth Chicago NFP
- Saybrook Fund Advisors, LLC
- Sb Friedman Development Advisors, LLC
- Sb Polk Street Development LLC
- Sbarro
- Sbarro
- Sbarros
- Sby Rg2-1101, LLC
- Sc Diamonds
- Scaredy Kat Oddities
- Scash
- Schmude Optical Inc, DBA Town & Country Optical Company
- Schneider Transportation Management
- School Of The Art Institute Of Chicago
- Scripps Networks, LLC
- Scripps News
- Sdi Presence LLC
- Sdlcgenix
- Season Of Concern
- Seaspire Advisors LLC
- Second Sense
- Secure Parking Usa, LLC