Norway's largest dental practices
Companies providing dental services.
The register holds 2 001 dental practices with filed revenue. Together they turn over NOK 15.2bn and employ 7 095 people. The largest is ORIS DENTAL AS, with NOK 2.3bn in revenue. The highest operating result belongs to ORIS DENTAL AS, at NOK 254.4m. The median operating margin is 11.5% across the 407 companies with real trading substance. Most are based in Oslo (345 companies).
2 001Companies
NOK 15.2bnCombined revenue
7 095Employees
11.5%Median operating margin
Ranking
Largest by revenue
Ranked by the most recently reported operating revenue.
#
Company
Amount
1
ORIS DENTAL AS
org.nr 921349890 · Trondheim, Trøndelag
NOK 2.3bn
2
COLOSSEUMKLINIKKEN AS
org.nr 977102278 · Oslo, Oslo
NOK 1.7bn
3
ODONTIA KLINIKKDRIFT AS
org.nr 917834393 · Oslo, Oslo
NOK 497.3m
4
OC TANNKLINIKKER AS
org.nr 931750283 · Oslo, Oslo
NOK 230.8m
5
TANNFÉEN NORGE AS
org.nr 913062868 · Moss, Østfold
NOK 103.6m
6
TY TANNKLINIKK AS
org.nr 997391497 · Trondheim, Trøndelag
NOK 90.9m
7
OSLO TANNLEGESENTER AS
org.nr 998477204 · Oslo, Oslo
NOK 78.4m
8
BERGEN TANNHELSESENTER AS
org.nr 988389579 · Bergen, Vestland
NOK 74.9m
9
SKI TANNLEGESENTER AS
org.nr 934075579 · Nordre Follo, Akershus
NOK 70.0m
10
EURODENT AS
org.nr 993748099 · Oslo, Oslo
NOK 69.4m
11
TANNHELSEHUSET HAUGESUND AS
org.nr 989319728 · Haugesund, Rogaland
NOK 68.0m
12
SMIL TANNLEGESENTER AS
org.nr 918831762 · Oslo, Oslo
NOK 65.9m
13
ODONTIA 3 AS
org.nr 920993168 · Indre Østfold, Østfold
NOK 51.0m
14
TANNHELSESENTERET LØRENSKOG AS
org.nr 981683552 · Lørenskog, Akershus
NOK 50.0m
15
BAKKE TANNLEGEKONTOR AS
org.nr 989752359 · Trondheim, Trøndelag
NOK 48.9m
16
BLID AS
org.nr 923669485 · Oslo, Oslo
NOK 45.1m
17
CLEAR TANNLEGESENTER AS
org.nr 822829082 · Oslo, Oslo
NOK 36.9m
18
TANNLEGENE I CONCORDIABYGGET AS
org.nr 990016143 · Lillestrøm, Akershus
NOK 36.6m
19
ORIS DENTAL HOLDING AS
org.nr 916967713 · Trondheim, Trøndelag
NOK 36.5m
20
SMILE DENTAL OSLO AS
org.nr 923633383 · Oslo, Oslo
NOK 36.0m
21
ORTHOS AS
org.nr 947403427 · Bergen, Vestland
NOK 34.0m
22
ARKADEN TANNHELSE AS
org.nr 928224546 · Stavanger, Rogaland
NOK 33.5m
23
SPESIALISTKLINIKKEN UNION BRYGGE AS
org.nr 917492484 · Drammen, Buskerud
NOK 33.1m
24
SARTOR TANNLEGESENTER DA
org.nr 982722497 · Øygarden, Vestland
NOK 32.8m
25
BEKKESTUA TANNMEDISIN AS
org.nr 916751478 · Bærum, Akershus
NOK 31.2m
Showing 25 companies
Ranking
Most profitable
Ranked by the most recently reported operating profit (EBIT).
#
Company
Amount
1
ORIS DENTAL AS
org.nr 921349890 · Trondheim, Trøndelag
NOK 254.4m
2
COLOSSEUMKLINIKKEN AS
org.nr 977102278 · Oslo, Oslo
NOK 126.8m
3
ODONTIA KLINIKKDRIFT AS
org.nr 917834393 · Oslo, Oslo
NOK 58.3m
4
HEIMDAL KJEVEORTOPEDI AS
org.nr 994266446 · Trondheim, Trøndelag
NOK 19.3m
5
OC TANNKLINIKKER AS
org.nr 931750283 · Oslo, Oslo
NOK 15.7m
6
ORALKIRURGI AS
org.nr 990226725 · Oslo, Oslo
NOK 15.0m
7
SKI TANNLEGESENTER AS
org.nr 934075579 · Nordre Follo, Akershus
NOK 14.0m
8
OSLO TANNLEGESENTER AS
org.nr 998477204 · Oslo, Oslo
NOK 14.0m
9
TANNLEGE ANNETTE NORDAAS AS
org.nr 997992113 · Elverum, Innlandet
NOK 13.0m
10
BERGEN TANNHELSESENTER AS
org.nr 988389579 · Bergen, Vestland
NOK 10.2m
11
SPESIALISTKLINIKK FOR PERIODONTI AS
org.nr 932995301 · Oslo, Oslo
NOK 10.1m
12
SMIL TANNLEGESENTER AS
org.nr 918831762 · Oslo, Oslo
NOK 9.7m
13
TANNLEGE NABEEL MEKHLIF AS
org.nr 993564257 · Hamar, Innlandet
NOK 9.3m
14
KJEVEORTOPED BRUSVEEN AS
org.nr 927944251 · Trondheim, Trøndelag
NOK 9.3m
15
DENTO AS
org.nr 943159904 · Porsgrunn, Telemark
NOK 8.8m
16
RAGLAMYR TANNREGULERING AS
org.nr 913267605 · Haugesund, Rogaland
NOK 8.5m
17
HA TANNLEGE AS
org.nr 895643092 · Hamar, Innlandet
NOK 8.4m
18
WAAGE TANNLEGESENTER AS
org.nr 989022539 · Klepp, Rogaland
NOK 7.8m
19
MEDIDENT HELSE AS
org.nr 998327326 · Trondheim, Trøndelag
NOK 7.7m
20
TANNLEGENE I CONCORDIABYGGET AS
org.nr 990016143 · Lillestrøm, Akershus
NOK 7.5m
21
ODONTIA 3 AS
org.nr 920993168 · Indre Østfold, Østfold
NOK 7.5m
22
MEMA KJEVEORTOPEDI AS
org.nr 812849352 · Ringerike, Buskerud
NOK 7.4m
23
ELVEBREDDEN TANNLEGESENTER AS
org.nr 996351114 · Kristiansand, Agder
NOK 7.3m
24
OPITZ TANNHELSESENTER AS
org.nr 992082097 · Øygarden, Vestland
NOK 6.8m
25
HEKLA TANNREGULERING AS
org.nr 913260430 · Karmøy, Rogaland
NOK 6.8m
Showing 25 companies
Ranking
Highest operating margin
Operating profit as a percentage of revenue. Only companies with at least 5 employees and more than NOK 5m in revenue.
#
Company
Operating margin
1
EIDSKOG TANNLEGESENTER AS
org.nr 916695624 · Eidskog, Innlandet
59.6%
2
TANNLEGE ANNETTE NORDAAS AS
org.nr 997992113 · Elverum, Innlandet
56.4%
3
DENTO AS
org.nr 943159904 · Porsgrunn, Telemark
55.8%
4
SIGURD SIVERTSEN AS
org.nr 989811541 · Haugesund, Rogaland
52.6%
5
SIGNE STORESUND AS
org.nr 990022186 · Haugesund, Rogaland
52.6%
6
KJEVEORTOPED BRUSVEEN AS
org.nr 927944251 · Trondheim, Trøndelag
50.8%
7
TØNSBERG TANNREGULERING AS
org.nr 915336191 · Tønsberg, Vestfold
46.4%
8
VESTKANTEN TANNREGULERING AS
org.nr 927841770 · Bergen, Vestland
44.8%
9
VOSS TANNHELSESENTER AS
org.nr 924913754 · Voss, Vestland
44.2%
10
TANNLEGENE MASDAL AS
org.nr 884604982 · Nord-aurdal, Innlandet
44.1%
11
KJEVEORTOPED JANNIKE FINN JØRNUNG AS
org.nr 992673141 · Flekkefjord, Agder
42.3%
12
TANNLEGE SVERRE AUKLAND AS
org.nr 986092188 · Risør, Agder
41.5%
13
TANNLEGE NINA LANDQUIST AS
org.nr 817397492 · Horten, Vestfold
40.5%
14
TANNLEGE TOMMY STENSHOL AS
org.nr 980407616 · Grue, Innlandet
40.4%
15
TANNLEGE KENNETH NAVELSAKER AS
org.nr 994864599 · Holmestrand, Vestfold
39.6%
16
GODTANNA LØTEN TANNLEGESENTER AS
org.nr 922844933 · Løten, Innlandet
39.2%
17
TANNLEGENE DULLUM AS
org.nr 993943681 · Stjørdal, Trøndelag
38.8%
18
ESTETISK TANNREGULERING AS
org.nr 897927942 · Oslo, Oslo
37.3%
19
LIERTOPPEN TANNLEGESENTER AS
org.nr 911715295 · Lier, Buskerud
37.0%
20
TORGET TANNHELSE AS
org.nr 998588367 · Stjørdal, Trøndelag
36.8%
21
TANNKLINIKKEN JACK KUVAAS AS
org.nr 932064650 · Holmestrand, Vestfold
36.1%
22
SPESIALISTKLINIKK FOR PERIODONTI AS
org.nr 932995301 · Oslo, Oslo
35.7%
23
MELBU TANNKLINIKK AS
org.nr 932096862 · Hadsel, Nordland
35.1%
24
BRATTVÅG TANNHELSE AS
org.nr 925553514 · Haram, Møre og Romsdal
34.7%
25
TANNLEGE PER HJERMANN AS
org.nr 984257597 · Vanylven, Møre og Romsdal
34.1%
Showing 25 companies
Ranking
Largest employers
Ranked by registered headcount.
#
Company
Employees
1
ORIS DENTAL AS
org.nr 921349890 · Trondheim, Trøndelag
871
2
COLOSSEUMKLINIKKEN AS
org.nr 977102278 · Oslo, Oslo
786
3
TANNHELSE ROGALAND FKF
org.nr 986382496 · Stavanger, Rogaland
456
4
TRØNDELAG FYLKESKOMMUNE TANNHELSETJENESTE
org.nr 920057071 · Steinkjer, Trøndelag
407
5
ODONTIA KLINIKKDRIFT AS
org.nr 917834393 · Oslo, Oslo
233
6
OC TANNKLINIKKER AS
org.nr 931750283 · Oslo, Oslo
107
7
TANNFÉEN NORGE AS
org.nr 913062868 · Moss, Østfold
99
8
KOMPETANSESENTERET TANNHELSE MIDT TRØNDELAG FKF
org.nr 924378611 · Trondheim, Trøndelag
63
9
SKI TANNLEGESENTER AS
org.nr 934075579 · Nordre Follo, Akershus
57
10
ORIS DENTAL HOLDING AS
org.nr 916967713 · Trondheim, Trøndelag
44
11
TY TANNKLINIKK AS
org.nr 997391497 · Trondheim, Trøndelag
40
12
EURODENT AS
org.nr 993748099 · Oslo, Oslo
38
13
TANNHELSEHUSET HAUGESUND AS
org.nr 989319728 · Haugesund, Rogaland
37
14
BLID AS
org.nr 923669485 · Oslo, Oslo
34
15
TANNTUNET AS
org.nr 988931608 · Oslo, Oslo
34
16
TANNHELSESENTERET LØRENSKOG AS
org.nr 981683552 · Lørenskog, Akershus
29
17
NITTEDAL TANNLEGESENTER AS
org.nr 925556890 · Nittedal, Akershus
26
18
ELVEBREDDEN TANNLEGESENTER AS
org.nr 996351114 · Kristiansand, Agder
25
19
SARTOR TANNLEGESENTER DA
org.nr 982722497 · Øygarden, Vestland
25
20
OSLO TANNLEGESENTER AS
org.nr 998477204 · Oslo, Oslo
25
21
BERGEN TANNHELSESENTER AS
org.nr 988389579 · Bergen, Vestland
24
22
SMIL TANNLEGESENTER AS
org.nr 918831762 · Oslo, Oslo
23
23
TANNLEGESENTERET SENJA AS
org.nr 833059602 · Senja, Troms
23
24
ODONTIA 11 AS
org.nr 921710283 · Tromsø, Troms
19
25
ODONTIA 3 AS
org.nr 920993168 · Indre Østfold, Østfold
18
Showing 25 companies
Geography
Where dental practices are based
County
Number of companiesActivity codes included
This industry gathers the following SN2007 activity codes. Each code also has its own overview page.
About the figures
Figures are the latest annual accounts filed with the Register of Company Accounts, matched to the activity code the company carries in the Central Coordinating Register. A company lands in an industry on the strength of that registered code, not an assessment of what it actually does.
The operating-margin list and the median use only the 407 companies with at least 5 employees and over 5 mill. kr in revenue, so a small company with erratic figures cannot top the list.
4 companies are held out because their operating margin exceeds 75% – far above the norm for this industry. That is almost always a wrong activity code or fair-value gains booked as operating revenue, not trading.
Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.
Changes
Latest changes among dental practices
16.09.2026
TANNLEGE DALÅMO
org.nr 995776995 · Trondheim, Trøndelag
Struck off the register
16.09.2026
NAYALASTAL FOR ODONTOLOGITJENESTER KHALED ALASTAL
org.nr 922366713 · Bergen, Vestland
Name change, Address change
15.09.2026
TANNLEGE SKUTLE AS
org.nr 914369800 · Alver, Vestland
Struck off the register
15.09.2026
MANGER TANNLEGESENTER AS
org.nr 918135324 · Alver, Vestland
Struck off the register
15.09.2026
BERGJARL HOLDING AS
org.nr 988990493 · Gjøvik, Innlandet
Activity code change
15.09.2026
ROAR SØVIK AS
org.nr 928787060 · Nes, Akershus
Activity code change
Other industries
These lists show actual registered figures from public sources (the Brønnøysund registers). They are not an assessment of creditworthiness, solidity or suitability as a customer, supplier or investment. Figures are for the most recently reported financial year.