This article uses statistical analysis of judicial decisions to address whether (and to what extent) the common law of corporations varies among the provinces. The primary findings are: (1) as measured by the number of case citations, provincial courts of appeal favour precedent from their home provinces; (2) the Supreme Court of Canada exerts a powerful standardizing influence across the provinces; and (3) on balance (and despite the “home province” bias of provincial courts of appeal), Canadian corporate law is largely homogeneous, with little variation among provincial jurisdictions. This article concludes that—for a variety of reasons—it is unlikely that any province will develop a distinctive body of corporate law.