On-Site Magazine

Esri Canada acquires Ratio.City

By Adam Freill   


Purchase to provide broader array of GIS software and data solutions for urban planning and development.

Esri Canada, a provider of geographic information systems (GIS), has acquired Ratio.City, a Toronto-based urban planning software and data company. The company says the acquisition will expand Esri Canada’s community planning solutions portfolio, enabling customers to better collaborate within the land development and planning community, and accelerate the design and approval of more affordable housing.

“Ratio.City’s extensive expertise in planning, design and development will strengthen our community planning solutions,” explained Alex Miller, president, Esri Canada. “Our combined capabilities will enable our users to transform urban planning and address Canada’s housing crisis.”

The company was founded in 2017 by Monika Jaroszonek and Erin Morrow to help city builders, planners, architects and land use professionals optimize and accelerate urban planning and real estate development processes through efficient access to city information. Among its customers is CreateTO, the city agency responsible for managing Toronto’s real estate portfolio.

“Esri Canada shares our vision and commitment to enabling sustainable land use and data accessibility,” said Monika Jaroszonek, CEO of Ratio.City. “Together, we’re excited to empower planners and developers across Canada with enhanced geospatial solutions to help them build more livable and equitable communities.”


Ratio.City users can access various critical geospatial information about Canadian cities through a web-based system. With a Ratio.City software subscription, users can explore existing land use and locate underutilized areas for potential development and optimal use.

Ratio.City will operate as a division of Esri Canada, with Jaroszonek serving as managing director, reporting to Miller.




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