Colas In Canada
Decade1920's

- 1922: Cold Spray bitumen emulsion patent filed in London.
- 1924: Cold Spray bitumen emulsion renamed Cold Asphalt.
- 1929: Colas created to exploit the Cold Asphalt patent which revolutionized road technology and gave the company its name (COLd ASphalt).
Decade1920's
- 1922: Cold Spray bitumen emulsion patent filed in London.
- 1924: Cold Spray bitumen emulsion renamed Cold Asphalt.
- 1929: Colas created to exploit the Cold Asphalt patent which revolutionized road technology and gave the company its name (COLd ASphalt).

Decade1960's

- 1963: Colas arrives in Canada with the acquisition of Fabi Ltd., owner of Fabi & Fils Limitée.
- 1967: Fabi Ltd. become Sintra Ltée.
- 1967: Fabi & Fils Limitée and become Seroc Inc.
- 1967: Seroc wins contract for the Vieux-Fort airport expansion in Saint-Lucia.
- 1967: Seroc works on Highway 91 in Vermont.
Decade1960's
- 1963: Colas arrives in Canada with the acquisition of Fabi Ltd., owner of Fabi & Fils Limitée.
- 1967: Fabi Ltd. become Sintra Ltée.
- 1967: Fabi & Fils Limitée and become Seroc Inc.
- 1967: Seroc wins contract for the Vieux-Fort airport expansion in Saint-Lucia.
- 1967: Seroc works on Highway 91 in Vermont.

Decade1970's

- 1972: Seroc works on important contracts in Québec's Eastern Townships.
- 1973: Seroc continues to diversify and balance its activities between small regional contracts and larger projects, such as Hydro-Québec's James Bay projects.
- 1973 Acquisition of Construction & Pavage Modern Ltée.
- 1974: Seroc and Construction & Pavage Modern Ltée. merge to become Sintra Inc., a wholly owned subsidiary of Sintra Ltée., a public company listed on the Montreal Stock Exchange.
- 1974: Sintra's Major Projects division works on a project in Saint-Pierre et Miquelon.
- 1975: Sintra wins contract for the construction of 98 km of roads in Haiti.
- 1977: Sintra creates a new company, Transelect Inc. specialized in energy transport.
- 1977: Start of Western expansion with a minority stake in Babichuk Constrction Ltd.
- 1978: Western expansion continues with the founding of Calpaco in Calgary
- 1979: Calpaco acquires Western Transit Mix and Active Excavating Sand & Gravel Ltd.
- 1979: Capaco builds an asphalt plant in Calgary.
Decade1970's
- 1972: Seroc works on important contracts in Québec's Eastern Townships.
- 1973: Seroc continues to diversify and balance its activities between small regional contracts and larger projects, such as Hydro-Québec's James Bay projects.
- 1973 Acquisition of Construction & Pavage Modern Ltée.
- 1974: Seroc and Construction & Pavage Modern Ltée. merge to become Sintra Inc., a wholly owned subsidiary of Sintra Ltée., a public company listed on the Montreal Stock Exchange.
- 1974: Sintra's Major Projects division works on a project in Saint-Pierre et Miquelon.
- 1975: Sintra wins contract for the construction of 98 km of roads in Haiti.
- 1977: Sintra creates a new company, Transelect Inc. specialized in energy transport.
- 1977: Start of Western expansion with a minority stake in Babichuk Constrction Ltd.
- 1978: Western expansion continues with the founding of Calpaco in Calgary
- 1979: Calpaco acquires Western Transit Mix and Active Excavating Sand & Gravel Ltd.
- 1979: Capaco builds an asphalt plant in Calgary.

Decade1980's

- 1980: Transelect works on various projects, including the construction of 130 km of high-tension power lines in Mali.
- 1980: Transelect works on 300 km of high-tension power lines from Hydro Québec'c LG2 and LG3 to Abitibi.
- 1980: Acquisition of Gooding & Matt Pipelines in Western Canada
- 1981: Translect completes its thousandth km of high-tension power line.
- 1981: Translect wins contract to build 600 KM of 1981 high-tension power lines in Kenya.
- 1981: Western expansion continues with the acquisition of Wapiti Gravel Suppliers, Westland Concrete, BA Concrete, BA Blacktop and Works Alberta.
- 1983: Sintra leveraged its experience in pipeline construction in Western Canada to build 50 km of pipelines in Quebec.
- 1985: Sintra and Transelect sign important construction contracts in Dominica.
- 1986: Sintra and Transelect sign important construction contracts in Haiti.
- 1988: Sintra winds down Transelect operations and refocuses on materials manufacturing, road construction, maintenance, and associated activities. Sintra acquires Pavage Moto Ltée.
- 1988: Western expansion continues with the acquisition of Arctic Paving, Northern Aggregate, and Ruel Bros. Contracting.
Decade1980's
- 1980: Transelect works on various projects, including the construction of 130 km of high-tension power lines in Mali.
- 1980: Transelect works on 300 km of high-tension power lines from Hydro Québec'c LG2 and LG3 to Abitibi.
- 1980: Acquisition of Gooding & Matt Pipelines in Western Canada
- 1981: Translect completes its thousandth km of high-tension power line.
- 1981: Translect wins contract to build 600 KM of 1981 high-tension power lines in Kenya.
- 1981: Western expansion continues with the acquisition of Wapiti Gravel Suppliers, Westland Concrete, BA Concrete, BA Blacktop and Works Alberta.
- 1983: Sintra leveraged its experience in pipeline construction in Western Canada to build 50 km of pipelines in Quebec.
- 1985: Sintra and Transelect sign important construction contracts in Dominica.
- 1986: Sintra and Transelect sign important construction contracts in Haiti.
- 1988: Sintra winds down Transelect operations and refocuses on materials manufacturing, road construction, maintenance, and associated activities. Sintra acquires Pavage Moto Ltée.
- 1988: Western expansion continues with the acquisition of Arctic Paving, Northern Aggregate, and Ruel Bros. Contracting.

Decade1990's

- 1990: Western expansion continues with the acquisition of Terrace Paving, North Coast Road Maintenance Ltd., Kentron Construction, and Carbon Crushing.
- 1991: BC operations consolidated under Terus Construction.
- 1991: Acquisition of Adventure Paving in BC. Sintra acquires Lamothe and Construction BML.
- 1992: Tagis, YCS and LV Paving acquired by Terus Construction.
- 1993: Terus Construction acquires Pittman Asphalt.
- 1994: BC Expansion continues with DGS Astro Paving, Quesnel Paving, Sonic Concrete and Aggregates.
- 1995: Acquisition of Dillman, North Alberta Highway Services, and Quality Concrete in Western Canada
- 1995: Béton St-Georges acquired by Sintra.
- 1996: Sintra acquires Béton St-Joseph.
- 1997: Western expansion continues with ACP Applied products in Alberta.
- 1998: Western expansion continues with the acquisition of Valley Blacktop and Skookum in BC.
- 1999: Pavages Saint Laurent acquired by Sintra, and Astrop Asphalt Recycling joins Colas in Western Canada.
Decade1990's
- 1990: Western expansion continues with the acquisition of Terrace Paving, North Coast Road Maintenance Ltd., Kentron Construction, and Carbon Crushing.
- 1991: BC operations consolidated under Terus Construction.
- 1991: Acquisition of Adventure Paving in BC. Sintra acquires Lamothe and Construction BML.
- 1992: Tagis, YCS and LV Paving acquired by Terus Construction.
- 1993: Terus Construction acquires Pittman Asphalt.
- 1994: BC Expansion continues with DGS Astro Paving, Quesnel Paving, Sonic Concrete and Aggregates.
- 1995: Acquisition of Dillman, North Alberta Highway Services, and Quality Concrete in Western Canada
- 1995: Béton St-Georges acquired by Sintra.
- 1996: Sintra acquires Béton St-Joseph.
- 1997: Western expansion continues with ACP Applied products in Alberta.
- 1998: Western expansion continues with the acquisition of Valley Blacktop and Skookum in BC.
- 1999: Pavages Saint Laurent acquired by Sintra, and Astrop Asphalt Recycling joins Colas in Western Canada.

Decade2000's

- 2000: Alberta expansion continues with the acquisition of Standard General Edmonton, Everall Construction and E-Construction. Operations in Western Canada restructured: Terus manages operations in Yukon, BC and Grand Prairie, while Works Alberta manages operations in Alberta.
- 2001: RayCar acquired by Sintra. NWT Construction's acquisition continues Western Canadian expansion..
- 2002: Standard General Calgary and Pagé Construction in Quebec join Colas. Colasasphlat Ltd. was created for bitumen sales.
- 2003: Lafrentz, SPL and BA Blacktrop in Cranbrook acquired in Western Canada.
- 2004: Acquisition of Skandia Concrete and Kootenay Paving in BC.
- 2005: Sintra acquires Construction Choinière, Lingo and Béton Beauce in Québec.
- 2006: Sintra acquires Compagnie Asphalte Ltée, Traçage Lanaudières, Services de lignes blanches Drummond, Les Pavages Laurentiens. Western expansion continues with Consolidated Construction Company Ltd, Adventure Construction and CRM.
- 2007: Sintra grows with Dura Linges, Asphalte des cantons, while Western Canada grows with the addition of H&J Ready Mix, NRM, ERM, TRM, KICKL and ICL.
- 2008: Sintra adquires Excavation Claude Bovin, Béton St-Éphrem, Lignes de stationement Rivard. Western expansion continues with Standard Paving and Chetwynd Redimix.
- 2009: Western expansion continues with G&C Asphalt, G&C Ready Mix, and Tumbler Ridge. Quebec expansion continues with Litel.
Decade2000's
- 2000: Alberta expansion continues with the acquisition of Standard General Edmonton, Everall Construction and E-Construction. Operations in Western Canada restructured: Terus manages operations in Yukon, BC and Grand Prairie, while Works Alberta manages operations in Alberta.
- 2001: RayCar acquired by Sintra. NWT Construction's acquisition continues Western Canadian expansion..
- 2002: Standard General Calgary and Pagé Construction in Quebec join Colas. Colasasphlat Ltd. was created for bitumen sales.
- 2003: Lafrentz, SPL and BA Blacktrop in Cranbrook acquired in Western Canada.
- 2004: Acquisition of Skandia Concrete and Kootenay Paving in BC.
- 2005: Sintra acquires Construction Choinière, Lingo and Béton Beauce in Québec.
- 2006: Sintra acquires Compagnie Asphalte Ltée, Traçage Lanaudières, Services de lignes blanches Drummond, Les Pavages Laurentiens. Western expansion continues with Consolidated Construction Company Ltd, Adventure Construction and CRM.
- 2007: Sintra grows with Dura Linges, Asphalte des cantons, while Western Canada grows with the addition of H&J Ready Mix, NRM, ERM, TRM, KICKL and ICL.
- 2008: Sintra adquires Excavation Claude Bovin, Béton St-Éphrem, Lignes de stationement Rivard. Western expansion continues with Standard Paving and Chetwynd Redimix.
- 2009: Western expansion continues with G&C Asphalt, G&C Ready Mix, and Tumbler Ridge. Quebec expansion continues with Litel.

Decade2010's

- 2010: Western expansion continues with Fort Nelson Redimix, Farside Logging and FRM.
- 2011: Quebec expansion continues with Les Carrières St-Ferdinand and CAL. Western expansion continues with Arrow Lakes Ready Mix, RNM Concrete, Whitmer Holdings Ltd., Canyon Contracting, GCL, and Boreal Pacific.
- 2012: Western expansion continues with Delta Aggregates and Souris Valley Paving.
- 2013: Western expansion continues with the acquisition of Garrett Ready Mix and BA Concrete. Quebec expansion continues with the acquisition of Franroc, and Les Bétons Rivière du Loup.
- 2014: Carrière St-Raymond de Portneuf in Quebec and in Western Canada, Peter Lane Concrete Ltd., Arctic Holdings and Canyon Contracting Company join Colas Canada. Ontario expansion begins with Georgian Paving.
- 2015: Quebec expansion continues with Construction DLP. In Western Canada, Priority Concrete Pumping. Roadworks Ontario consolidates Colas's presence in Ontario.
- 2016: Western expansion continues with Synergy Construction Materials, Castle Rock Enterprises and Prince George Ready Mix.
- 2017: Meloche joins Sintra in Quebec and Belevere Paving Equipment and Colas ISS join Colas Canada.
- 2018: The Miller Group, which includes construction, maintenance and mateirals activities, and include Brennan Paving, E.C. King Contracting, Miller Concrete, Miller Maintenance, Jennison Construction, Lavis Contracting, MSO Construction, Miller Paving, The Murray Group, Miller Cement, Smith's Construction, Tri City Materials, Tri-City Ready Mix, Talon SEBEQ, Perth Ready Mix, Frank Kling and Various Maintenance companies, join Colas Canada. McAsphalt, one of Canada's largest asphalt and services providers, joins Colas. This represents Colas Canada's and the Colas Group's largest acquisition to date, doubling the size of Colas in Canada.
Decade2010's
- 2010: Western expansion continues with Fort Nelson Redimix, Farside Logging and FRM.
- 2011: Quebec expansion continues with Les Carrières St-Ferdinand and CAL. Western expansion continues with Arrow Lakes Ready Mix, RNM Concrete, Whitmer Holdings Ltd., Canyon Contracting, GCL, and Boreal Pacific.
- 2012: Western expansion continues with Delta Aggregates and Souris Valley Paving.
- 2013: Western expansion continues with the acquisition of Garrett Ready Mix and BA Concrete. Quebec expansion continues with the acquisition of Franroc, and Les Bétons Rivière du Loup.
- 2014: Carrière St-Raymond de Portneuf in Quebec and in Western Canada, Peter Lane Concrete Ltd., Arctic Holdings and Canyon Contracting Company join Colas Canada. Ontario expansion begins with Georgian Paving.
- 2015: Quebec expansion continues with Construction DLP. In Western Canada, Priority Concrete Pumping. Roadworks Ontario consolidates Colas's presence in Ontario.
- 2016: Western expansion continues with Synergy Construction Materials, Castle Rock Enterprises and Prince George Ready Mix.
- 2017: Meloche joins Sintra in Quebec and Belevere Paving Equipment and Colas ISS join Colas Canada.
- 2018: The Miller Group, which includes construction, maintenance and mateirals activities, and include Brennan Paving, E.C. King Contracting, Miller Concrete, Miller Maintenance, Jennison Construction, Lavis Contracting, MSO Construction, Miller Paving, The Murray Group, Miller Cement, Smith's Construction, Tri City Materials, Tri-City Ready Mix, Talon SEBEQ, Perth Ready Mix, Frank Kling and Various Maintenance companies, join Colas Canada. McAsphalt, one of Canada's largest asphalt and services providers, joins Colas. This represents Colas Canada's and the Colas Group's largest acquisition to date, doubling the size of Colas in Canada.

Decade2020's

- 2023: All Western Canadian companies amalgamate under Colas Western Canada Inc.
- 2024: Sintra rebrands all Quebec operations under the Groupe Colas Quebec Inc. brand and uses the Colas logos. Miller acquires a stake in Parry Sound, Muskoka and Champlain Ready Mix in Ontario.
- 2024: Colas celebrates 60 years in Canada.
- 2025: Alberta Highway Services celebrates 30 years in Canada.
Decade2020's
- 2023: All Western Canadian companies amalgamate under Colas Western Canada Inc.
- 2024: Sintra rebrands all Quebec operations under the Groupe Colas Quebec Inc. brand and uses the Colas logos. Miller acquires a stake in Parry Sound, Muskoka and Champlain Ready Mix in Ontario.
- 2024: Colas celebrates 60 years in Canada.
- 2025: Alberta Highway Services celebrates 30 years in Canada.
