> HISTORY
1990:
- Ivan B. Wallace Ontario Land Surveyor Ltd was established in Bowmanville, Ontario.
- IBW acquires T.S. Fluke (Peterborough) O.L.S. records.
- IBW acquires Culham Wallace & Davies O.L.S. records
- IBW acquires Donevan & Richards O.L.S. (Cobourg) records
2000:
- IBW acquires Culham Surveying records
- IBW acquires Brown & Coggan O.L.S. Ltd.
- IBW opens Cobourg Branch Office
- IBW acquires Kerry Boehme O.L.S. Ltd.
- IBW opens Trenton Branch Office
2010:
- IBW acquires J. Vinklers Surveying Ltd.
- IBW opens Toronto Branch Office as Vinklers, Wallace & Ertl O.L.S. Ltd.
- IBW opens Peterborough Branch Office
- IBW opens Belleville Consultation Office
Ivan B, Wallace O.L.S. Ltd. is in possession of the following Ontario Land Surveyor Records:
IBW Trenon:
- Friel & Boehme
- Friel, Boehme & Hume
- Friel, N. Edward
IBW Cobourg:
- Donevan & Fleischmann (Cobourg)
- Donevan & Richards (Cobourg)
- Horton, Wallace and Davies (Northumberland),
- K.F. Lashley OLS
- Culham Surveying
- Culham, Wallace and Davies OLS.
IBW Bowmanville:
- M.D. Brown OLS
- Brown & Coggan OLS
- Horton, Wallace and Davies Ltd. (Durham East, Peterborough, Victoria County)
- C.F. Riley OLS
- S.J. Bird OLS
- T.S. Fluke OLS
- G. Douglas Coggan OLS.
IBW Toronto (Vinklers, Wallace & Ertl):
- Lawryshyn, R
- Martin, Blain Surveying Ltd.
- Ostapiak, D.
- Pavlin, Peter
- Raiend, Valdek, Ltd.
- J. Vinklers Survying Ltd
- Horton and Haynes (Toronto)
- Horton, Carr and Haynes (Toronto)
- B.J Haynes