Bedrift I - Tiller
- Ice ANS
- Invest42 AS
- Ilsvikparken AS
- Itelsec
- IPAS AS
- Invacare AS
- Itnologi DA
- Ihole AS
- Industrigjerder AS
- Icytaxi AS
- Ineural AS
- Ips AS
- Isoteam Åsmul
- Ingeborg Hov
- IcopalTak AS Avd Trondheim
- Info-regnskap AS
- Ifelo Instituttet
- Inger Lande
- Imj-Invest AS
- IcoptalTak Avd Trøndelag
- Impulse Treningssenter
- Iselinn Nilsen
- Island Elkraftstjenester
- Ida Normann
- Integra Trondheim
- Ivan Pongracic
- Integra Trondheim
- Ing Kulseth
- Ingebrigtsen Analyse
- Infraconstruct Design AS
- Ips Trondheim AS
- Infinitum AS Avd Trondheim
- IPS Trondheim AS
- Ips Eiendom AS
- Ips Norway AS
- Infotek Arvid Aakre
- Inger Kathrine Dyrendahl
- Iver Daaland Åse
- Impulse Trekanten Treningssenter
- Intersport City syd AS
- Insider Facility Solutions AS
- Intersport Trondheim - Tiller
- Ivar Lykkesvei 10 AS
- Ivar Larsen Konsult
- I. H. Eldøen
- Ida Regine Brissach
- If Uni Assuranse
- Intersport Trondheim Avd City syd
- Intersport Trondheim - City syd
- InfoCare Norge AS Professional Service
- Iverstuen Unit Forsikring AS - Marte
- Ingvald Ystgaards veg 17 AS
- Insight Bygg Eriksen Sanchez
- Interiørveileder Vera Leinan Hansen
- Internasjonelle Forening for Frihet
- Ingvald Ystgaards veg 17 Eiendom AS
- Ir Tae Kwon Do Tong
- I Bruk , reserve Tommy Skaanes
- ISS Facility Services AS Avd 423017 Transportsentralen
- Ivar Lykkes vei Fysioterapi & Manuellter
- ISS Facility Services AS Avd 423037 Wist Mr
- Ikke Rør Abo for Å Holde Ban oppe.