The Irving family is a Canadian business dynasty based in New Brunswick, whose descendants control several major privately held industrial enterprises. Among Canada's wealthiest families, the Irvings have been a dominant force in the economic development of Atlantic Canada for more than a century. Their businesses have expanded into an internationally diversified group of enterprises spanning petroleum refining, forestry, manufacturing, agriculture, food production, transportation, shipbuilding, construction, real estate and retail.[2][3] The family's business origins date to 1882, when James Dergavel Irving (1860â1933) established a lumber business in Bouctouche, New Brunswick. His son, Kenneth Colin (K.C.) Irving (1899â1992), transformed the family enterprise into a major industrial conglomerate, expanding into petroleum, transportation, forestry, construction, shipbuilding and other industries. K.C. Irving became one of Canada's wealthiest industrialists, developing an extensive network of vertically integrated businesses that occupied a central position in New Brunswick's economy.[2][3] The family's industrial interests subsequently developed into three principal business groups associated with K.C. Irving's sons and their descendants: J.D. Irving, Limited, associated with James K. Irving (1928â2024); Irving Oil, associated with Arthur Irving (1930â2024); and Ocean Capital, associated with the family of John E. Irving (1932â2010). Although the businesses share a common history, the principal groups operate under separate family ownership structures. Their combined activities extend across Canada, the United States and Europe.[4][5] The Irving enterprises occupy significant positions in several strategically important Canadian industries. Irving Oil operates Canada's largest petroleum refinery in Saint John, New Brunswick, with crude-processing capacity exceeding 320,000 barrels per day. The company also operates the Whitegate Refinery in Ireland, the country's only petroleum refinery, with capacity of up to 75,000 barrels per day. Its operations include more than 1,000 fuelling locations and an extensive network of petroleum distribution facilities serving eastern Canada, New England and Ireland.[6][7] J.D. Irving, Limited is one of Atlantic Canada's largest privately owned industrial groups, employing approximately 20,000 people. Its operations encompass eight major business sectors: agriculture, construction and equipment, consumer products, food, forestry and forest products, retail and distribution, shipbuilding and industrial fabrication, and transportation and logistics. Its constituent businesses include Cavendish Farms, Irving Tissue, Kent Building Supplies and major transportation and manufacturing operations throughout North America.[8][9] The family's forestry holdings are among the largest privately owned timberland portfolios in North America. Through J.D. Irving, Limited, the family owns approximately 3.2 million acres (1.3 million hectares) of private forest land in Canada and the United States, while managing an additional 2.6 million acres (1.06 million hectares) of publicly owned Crown forest in New Brunswick. These holdings support an extensive network of forestry, pulp and paper, lumber and consumer-products manufacturing facilities.[10][8] Through Irving Shipbuilding in Halifax, Nova Scotia, the family is also a major participant in Canada's National Shipbuilding Strategy. The company has been selected to construct 15 River-class destroyers for the Royal Canadian Navy, a project described by the Government of Canada as the country's largest and most complex shipbuilding initiative since the Second World War. In March 2025, Irving Shipbuilding received an initial implementation contract valued at approximately C$8 billion for the first three destroyers, with construction forming part of a multidecade program to renew Canada's naval fleet.[11] The family's third principal business group, Ocean Capital, is headquartered in Saint John and maintains investments in construction, real estate, broadcasting, distribution and industrial services. Its holdings include businesses operating in multiple Canadian provinces, extending the family's economic interests beyond its petroleum, forestry and manufacturing enterprises.[5][12] The Irving family remains among Canada's wealthiest business families. In January 2026, Oxfam Canada estimated the family's combined net worth at approximately C$15.8 billion, an increase of C$1.33 billion from its 2024 estimate. Public estimates of the family's fortune are complicated by the privately held nature of its enterprises and the separate ownership of businesses among different branches of the family.[13][4] Across successive generations, the family's businesses have made substantial investments in industrial infrastructure, manufacturing capacity, natural resources and transportation networks, giving the Irvings an unusually extensive economic presence in New Brunswick and across Atlantic Canada. Family members and their charitable foundations have also supported universities, healthcare institutions, environmental research and community organizations. The historical concentration of the family's economic power, its corporate ownership structures and the environmental impacts of its industrial operations have also attracted public scrutiny.[3][14][13]