[9] Operations include mass transit and heavy rail systems, highways, bridges, airports and marine facilities, as well as industrial, commercial, cultural and healthcare buildings.

[12] The company specialized in hydraulics, managing hydropower projects and flood control, and soon branched out into the industrial sector, particularly in pulp and paper, and mining and metallurgy.

He oversaw major projects including the TransCanada highway in Montreal, the Louis-Hippolyte-Lafontaine Bridge-Tunnel, the Olympic Stadium in Montréal, and Alcan in the Ville de La Baie.

[25] In 2017, SNC-Lavalin acquired its UK rival Atkins—a British design, engineering and project management consulting firm, for approximately CA$3.36 billion with $1.9-billion investment from [26] the Caisse de dépôt et placement du Québec.

In late 2018, SNC-Lavalin agreed to form a joint venture with the Swedish-Swiss industrial giant ABB for the delivery of turnkey electrical substation projects.

This new company, named Linxon, undertakes project design, engineering, procurement, and construction activities for a range of clients in the transport, utilities, and renewable electricity generation and transmission sectors.

[5] President and CEO Ian Edwards said the new name combined the Atkins legacy brand and ‘Réalis, inspired by the city of Montréal and the company’s French-Canadian roots.

[38] In June 2005, the BC Department of Transport selected SNC-Lavalin for a 30-year contract valued at $179 million to "design, build, finance and operate" the William R. Bennett Bridge in Kelowna, British Columbia.

[39] In 2004, the firm was awarded the contract for Canada Line, an extension of the SkyTrain rapid-transit system in Vancouver;[40] the project was completed in 2009,[41] ahead of schedule.

[50] In 2007, the firm won the $4.6-billion Ambatovy mine engineering, procurement, and construction (EPC) management contract, the largest capital project in Madagascar's history.

In May 2022 the company negotiated a deferred prosecution agreement and agreed to pay fines, surcharges and victim compensation totalling $29.6 million to settle the matter.

[64] In May 2018, former SNC-Lavalin executive vice president Normand Morin[65] was charged with making illegal donations to Canadian federal political parties, on recommendation from the director of public prosecutions, in the Court of Quebec.

[74] By the summer of 2013, police alleged that the "unknown commercial consultants" had never existed and that Ben Aissa had "set up shell companies so he could pocket the [$56 million] himself".

[78] In 2013, Roy filed a countersuit for wrongful dismissal, claiming lost wages and damages to his reputation, alleging that he had been framed and scapegoated by higher-level executives whose directives he was obliged to follow.

Payments of personal benefits totalling over $73.5 million were also made through the representative companies to Ben Aissa and Sami Bebawi, a former vice-president of SLCI.

[89] After the bribes were discovered, the audit committee of the company's board launched an investigation into the matter, led by directors such as Claude Mongeau, then the CEO at Canadian National Railway.

[90][91] During the audit committee investigation, the Financial Post wrote a story critical of full-time CEOs serving on the boards of directors of other companies, calling out Mongeau specifically.

[105] An investigation into an alleged graft related to 2011 bids for the construction of the 6.51 kilometre (four-mile) USD$3 billion road—rail bridge crossing the Padma River in Bangladesh,[106] resulted in the former SNC-Lavalin employees being cleared of all charges by a Canadian court.

In May 2011, two former SNC-Lavalin International Inc. (SLII) employees Ramesh Shah and Mohammad Ismail met government officials in Bangladesh to discuss a bid for the $50-million supervision contract to build the Padma Bridge, a project estimated to be worth US$3 billion.

However, on February 11, 2017, the Ontario Superior Court found no proof of the Padma bridge bribery conspiracy, dismissed the case, and acquitted the ex-SNC-Lavalin executives.

[108] According to the Dhaka Tribune, Justice Ian Nordheimer rebuked the Canadian police, saying: "Reduced to its essentials, the information provided in the [wiretap applications] was nothing more than speculation, gossip, and rumor.

"[108] In 2015, internal documents from SaskPower (the crown corporation that is the principal electric utility in Saskatchewan, Canada), revealed that there were "serious design issues" in the carbon capture and storage system at its coal-fired Boundary Dam Power Station, resulting in regular breakdowns and maintenance problems that caused the unit to be operational only 40% of the time.

[69] In July 2018, SaskPower announced, in its annual report, that they would not be proceeding with retrofitting the two aging facilities near Estevan—Boundary Dams 4 and 5 (BD4 and BD5) with carbon capture and storage (CCS).

[Notes 9] By 2019, SNC-Lavalin, still facing criminal charges in regard to several contracts, began investigating the possibility of a DPA under the newly introduced Remediation Agreement Regime, as early as April 2018.

[114][113][59] On February 10, 2019, the Toronto Star reported that Opposition Leader Andrew Scheer met with SNC-Lavalin CEO Neil Bruce on May 29, 2018, to discuss the remediation agreement.

[116] According to the National Post, "If the company is convicted it would be barred from bidding on federal contracts for 10 years, potentially costing it billions in forgone revenue.

[120][59] On February 18, 2019, Gerald Butts, Trudeau's principal secretary, resigned and denied that he or anyone else in the Prime Minister's Office attempted to influence Wilson-Raybould.

The report's analysis section discusses the topics of prosecutorial independence and Shawcross doctrine (dual role of Attorney General) to draw the conclusion that the influence was improper and a violation of Conflict of Interest Act.

[123] SNC-Lavalin CEO Pierre Duhaime resigned in March 2012 and was arrested by Quebec's anti-corruption squad on charges including fraud on November 28, 2012.

Card was instructed to revamp the company's "ethics and compliance standards" and oversee the departure of existing management that had been involved in the scandals.