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Add Sustainability Solutions Group co-op
They're a Canadian worker co-op with offices all across the country: https://www.ssg.coop/
Maybe not strictly a "tech co-op" but they do geospatial analyses, scenario modeling, and generally data-informed policy work, so I think there's enough overlap to be interesting.
It's a bit hard to decide whether they qualify with the definition we use for this list:
Tech cooperatives are worker-owned cooperatives that operate in the information technology industry. This list focuses on tech coops that are providing software development and consulting services.
Do you think they fit it?
They have several lines of business, many of which are more policy oriented, but the scenario modeling / geospatial analysis seemed like it fit into the category. It seems like they do the data analysis & modeling in house and then generate interactive frontends or static graphical outputs for use in public engagement, presentations to policymakers. We were talking to them about collaborating on a energy system data project working in Python which is why I thought to add them here.