Bedrift T - Gamle Fredrikstad
- Teistung AS
- Tryggflytting
- Takstkompaniet AS
- Trucktech AS
- Tecotat
- Tecotat
- Tbg AS
- Tolmer AS
- Tigris AS
- Tofte AS
- Teli2 AS
- Toplogic AS
- Toplogic AS
- Titan Arbeiderforening
- TESS Fredrikstad
- Titangata 8 AS
- Titan Ferieforening
- Trucktech Utleie AS
- Trivselsgruppe Nst
- Terje Resell
- Torsnesveien 36
- Trivselsgruppe Nst
- Torsnesveien 36
- Tse Investeringsselskap AS
- Trollhettaveien boliger
- Titan Il
- Titangata 11 AS
- Tyrolit AS - Handelsavdeling
- Terjes Foto
- Terje Brevik
- Tell Reklamebyrå AS
- Torvgaten 58
- Torvgaten 58
- Taxi Fayez
- Torvgaten 57a AS
- Tweeds Kulturfest
- Thor Bøckmann AS
- Torkel Varfjell
- TOOLS Fredrikstad
- Torsnes Stenmontering
- Torsnes 4H
- Torsnes Bridgeklubb
- Torsnes Skytterlag
- Tæsse Holding AS
- Torvbanen 10 AS
- Torsnes Gammeldansforening
- Tore Lervik
- Thomas Jacobsen
- Torsnes Viltlag
- Tone Heidenberg
- Torsnes Lokalsamfunnsutvalg
- Torsnes Arbeiderlag
- Tore Persson AS
- Torsnes industriservice AS
- Torsnes Bygdekvinnelag
- Torsnes Pensjonistforening
- Torsnes Bygg AS
- Treteknikk Østfold AS
- Torsnes Barnehage
- Torsnes Sykehjem
- Torsnes Industriservice AS
- Torsnes Idrettslag
- Torsnes skole
- Tore Reiersen
- Torgeir Holm
- Thoresen Lars
- Thue Omsorg
- Talina Produksjon AS
- Teknic Hansen
- Tnf Holding AS
- Teglverksveien 2 AS
- Tenax Holding AS
- Trond Gjerløw
- Thuen Alf
- Tore Brenna
- Tassen Holding AS
- TT Utvikling AS
- Total Eiendomsdrift AS
- Tpn Invest AS
- Trondalen Utvikling AS
- Total Eiendomsutvikling AS
- Tipa Holding AS
- Terje Mathisen Prosjektsupport
- The Steam Band
- Trivselsgruppe Dd Øra
- Tindlund Optometry Consulting
- Th Lundblad Invest AS
- Tomatis Itai Rave
- Trivselsgruppe Dd Øra
- The Steam Band
- Transportsentralen, Fredrikstad Transportforum A/S
- T-line Norge AS
- Tradisjionssmedene i Gamlebyen
- Thor Elias Haukeland
- Tradisjionssmedene i Gamlebyen
- Thor Gunnar Ryen AS
- Tømrer Emil Josdal
- Trubadurene i Fredrikstad
- Ts-Consult Claudius
- Thg Thora Gudbjartsdottir
- Tannlegene i Væktergaarden AS
- Trubadurene i Fredrikstad
- Teknimek Frank Bakken
- Trude Liv Nilsen
- Torp Bygg-Invest AS
- Tor Vidar Hansen
- Team Vovvov Jaavall
- Tømrermester John Wennberg
- Torsnes Vedsalg Jønsson
- Torsnes Skole SFO
- Treteknikk Eiendom Østfold AS
- Tor Magnus Lundeby
- Tømmerhoggern - Pettersen Trefelling
- Teide Petter Lind
- Thorvaldsen IT Service
- TM Swahn Veiledning
- Tor Erik Lund AS
- Terra Marketing - Olsen
- Tyrolit AS - Bygg og anleggsavdeling
- Tannpleier Shokh Hiwa Jalal
- Therese M Therese M
- Torpegata 8 A Eiendom AS
- Tannlege Helene Maryann Josefsen
- Tekstildesigner Jon Å Pettersen
- Th-Musikk og Dataservice
- Torsnes Lille Søte Ballin
- Tomco Tom Arild Paulsen
- Torsnes Barne- og Ungdomskor
- The Silver Hand Band
- The Silver Hand Band
- Terapi-Salongen Bente Stendahl
- Trosvik torv 1-3 AS
- Tor-Erik Lund Invest AS
- Töddel Media - Mia Gill Kristiansen
- Ta-Svakstrøm Truls Petter Abrahamsen
- Triforce Media Jan Kenneth Aarhaug
- Tæsselædden Håndverk & Systue Ann Elisabeth Refsahl