Longest trading · Updated October 2026
Professional firms in South Australia
- Professional firms compared
- 2,165
- Google reviews
- 102,982
- Median rating
- 5.0
As of October 2026, the three longest-trading professional firms in South Australia on Town Proven are Gebhardts Real Estate (started in 1955; 4.1 from 20 Google reviews), Bruse Real Estate (started in 1957; 4.3 from 114 Google reviews) and Elders Real Estate Gawler (started in 1958; 4.5 from 79 Google reviews).
Professional firms in South Australia: the top 50
- 1
Gebhardts Real Estate
from 20 Google reviews
Started: 1955
14 Helen St, Mount Gambier SA 5290
- 2
Bruse Real Estate
from 114 Google reviews
Started: 1957
357 Greenhill Rd, Adelaide SA 5065
- 3
Elders Real Estate Gawler
from 79 Google reviews
Started: 1958
37 Murray St, Gawler SA 5118
- 4
Firefly Express
from 99 Google reviews
Started: 1966
- 5
H&R Block Tax Accountants - Hallett Cove
from 18 Google reviews
Started: 1971
Shop TA05, S/C/246 Lonsdale Rd
- 6
H&R Block Tax Accountants - Newton
from 11 Google reviews
Started: 1971
Shop 1a Mercury Plaza, 94-96 Gorge Road
- 7
H&R Block Tax Accountants - Ingle Farm
from 18 Google reviews
Started: 1971
26a/247 Montague Road, Ingle Farm SA 5098
- 8
RSM Australia | | Adelaide Accounting & Business Advisory Services
from 16 Google reviews
Started: 1972
4/191 Pulteney St, Adelaide SA 5000
- 9
O'Halloran Conveyancing
from 35 Google reviews
Started: 1973
Ste 2, 1/5 Wakefield St
- 10
Blackwood & Belair Conveyancing
from 240 Google reviews
Started: 1973
187e Main Road, Blackwood SA 5051
- 11
SUREWiSE | Insurance Brokers Adelaide
from 18 Google reviews
Started: 1973
- 12
Magain Fielke Real Estate Gawler
from 30 Google reviews
Started: 1975
- 13
Minerds Bell Consultancy Group
from 30 Google reviews
Started: 1975
- 14
Magain Real Estate Morphett Vale
from 103 Google reviews
Started: 1975
52 Hillier Rd, Adelaide SA 5162
- 15
Magain Real Estate Glenelg
from 61 Google reviews
Started: 1975
74 Brighton Rd, Adelaide SA 5045
- 16
Magain Real Estate Brighton
from 46 Google reviews
Started: 1975
- 17
Magain Real Estate Stepney
from 769 Google reviews
Started: 1975
- 18
Magain Real Estate Woodcroft
from 156 Google reviews
Started: 1975
Shop 15, 217 Pimpala Rd, Woodcroft Market Plaza
- 19
Magain Real Estate Seaford
from 151 Google reviews
Started: 1975
Seaford Central Shopping Centre, Shop 60/108 Commercial Rd
- 20
Magain Real Estate Happy Valley
from 92 Google reviews
Started: 1975
Happy Valley Shopping Centre, Happy Valley Lpo, 50 Kenihans Rd, Adelaide SA 5159
- 21
Magain Real Estate Port Noarlunga
from 29 Google reviews
Started: 1975
- 22
Magain Real Estate Hyde Park
from 24 Google reviews
Started: 1975
- 23
Magain Real Estate Ascot Park
from 255 Google reviews
Started: 1975
765 Marion Rd, Adelaide SA 5043
- 24
WEEKS+MACKLIN
from 143 Google reviews
Started: 1975
- 25
Ring Real Estate
from 32 Google reviews
Started: 1976
- 26
Capstone Insurance Brokers
from 26 Google reviews
Started: 1977
by Appointment only, 167 Flinders St
- 27
Critchley & Associates Conveyancers
from 70 Google reviews
Started: 1977
1283 North East Rd, Adelaide SA 5091
- 28
Booth Real Estate
from 31 Google reviews
Started: 1977
325 Wakefield St, Adelaide SA 5000
- 29
Kemp Real Estate
from 240 Google reviews
Started: 1978
38 Liverpool St, Port Lincoln SA 5606
- 30
Mahony's Lawyers
from 65 Google reviews
Started: 1978
59 Commercial Rd, Adelaide SA 5108
- 31
Cornerstone Conveyancing
from 119 Google reviews
Started: 1979
4 Mann Street, Mount Barker SA 5251
- 32
Wadlow Solicitors
from 60 Google reviews
Started: 1979
33 Pirie St, Adelaide SA 5000
- 33
RJ Cole & Partners
from 64 Google reviews
Started: 1979
- 34
PBS Accountants & Advisers Pty Ltd
from 10 Google reviews
Started: 1980
Marion SA
- 35
H&R Block Tax Accountants - Morphett Vale
from 31 Google reviews
Started: 1981
177-179 Main South Road, Morphett Vale SA 5162
- 36
First National Real Estate Peoples' Choice - Gawler / Barossa
from 93 Google reviews
Started: 1981
- 37
Johnston Withers Lawyers, Port Augusta
from 13 Google reviews
Started: 1982
14-16 Gibson St
- 38
PMN Personal Injury Lawyers Adelaide
from 94 Google reviews
Started: 1982
- 39
Martin Real Estate
from 23 Google reviews
Started: 1984
1 O'Connell St, Adelaide SA 5006
- 40
Greven & Co Financial Services
from 11 Google reviews
Started: 1985
- 41
S.A. Land Conveyancers
from 15 Google reviews
Started: 1985
15 Sydney St, Adelaide SA 5065
- 42
Steven M Clark Lawyers
from 31 Google reviews
Started: 1985
1 Adelaide Rd, Gawler SA 5118
- 43
Baker Young Limited
from 15 Google reviews
Started: 1985
- 44
Marshall SA Real Estate
from 20 Google reviews
Started: 1985
314 Portrush Rd
- 45
LJ Hooker Glenelg | Brighton
from 90 Google reviews
Started: 1986
- 46
360Private
from 25 Google reviews
Started: 1986
170 Greenhill Rd, Adelaide SA 5063
- 47
Adelaide Tuition Centre & Essentials Education
from 10 Google reviews
Started: 1986
- 48
Southern Vales Legal
from 53 Google reviews
Started: 1986
- 49
James Lagudi - Mortgage Broker - Bernie Lewis Home Loans
from 32 Google reviews
Started: 1987
- 50
ROE - Retirement Advice Specialists
from 30 Google reviews
Started: 1987
11/780 South Road, Glandore SA 5037
Town Proven compared 2,165 professional firms in South Australia, with 102,982 Google reviews between them. Of these, 181 meet this list's method. The median rating is 5.0 from a median of 15 reviews.
Of the professional firms compared, the most reviewed is Rise High, Part of UFinancial, with 1,097 Google reviews at 5.0.
How this list is ranked
Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed.
The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
Questions
- Which professional firms in South Australia have been trading the longest?
- As of October 2026, the three longest-trading professional firms in South Australia on Town Proven are Gebhardts Real Estate (started in 1955; 4.1 from 20 Google reviews), Bruse Real Estate (started in 1957; 4.3 from 114 Google reviews) and Elders Real Estate Gawler (started in 1958; 4.5 from 79 Google reviews).
- How does Town Proven rank professional firms in South Australia?
- Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed. The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
- How many professional firms in South Australia did Town Proven compare?
- Town Proven compared 2,165 professional firms in South Australia, with 102,982 Google reviews between them. Of these, 181 meet this list's method. The median rating is 5.0 from a median of 15 reviews.
- Can a business pay to be listed or to rank higher?
- No. Every business is ranked by the same published method, and no business can pay to be listed or to move up.