I
- International Trade Union Confederation
- International Trade Union Confederation [ITUC]
- International Travel Network
- International Travel Network (ITN)
- International Van Lines
- International Vehicle Appraisers Network
- International Visa Service
- International Vitamin Corporation
- International Volunteer HQ [IVHQ]
- International Winners Circle
- InterNations
- Internet America
- Internet Auto Rent and Sale
- Internet Hobbies
- Internet Local Listings
- Internet Modeling
- Internet Movie Database [IMDb]
- Internet Polyglot
- Internet Profit Library
- Internet Secrets
- Internet Speedway
- Internet Trains
- Internet Website Design Concepts
- Internorte
- Intero Real Estate Service
- Interpac Technologies
- Interpacific Business Outsourcing Centre
- Interpagos
- Interpals
- Interparcel
- Interplay
- Interpneu
- Interpublic Group Of Companies
- InterracialDating Com
- InterracialDatingCentral
- InterracialMatch
- Interrail
- InterRent
- InterServer
- Intersolved, LLC
- Interspace180
- Interstate Batteries
- Interstate Design Industries
- Interstate Home Loan Center
- Interstate Motor Freight Systems
- Interstate Motorsport
- Interstate Music
- Interstate National Dealer Services
- Interstate National Dealer Services (INDS)
- Interstate Recovery
- Interstate Roofing
- Interstate Systems
- Interstate Towing
- Interstate Toyota
- Interstate Trailers
- Interstate Van Lines
- Interstitial Cystitis Network
- Interton
- Interval Data Systems
- Interval International / IntervalWorld.com
- Interval Vacation Promotions
- InterviewSuccessFormula
- Interweave
- InterX Technologies
- Intesa Sanpaolo
- Inteva Products
- Intex Recreation
- Intex Recreation Corporation
- Intex Technologies
- Intex Technologies India
- InTheMoneyStocks.com
- Intimacy
- Intime
- InTime Investigations
- Intimidators auto repair
- IntlPri
- Into Blinds
- INTO THE AM
- InTouch Point of Sale
- Intoweb
- InTown Suites
- Intoxalock
- Intracoastal Realty
- Intraedge Technologies
- Intraglobe
- Intralinks
- Intrepid Travel
- Intrepid Ventures
- Intrex Computers
- Intriguing Hair
