This paper presents new evidence about the prevalence, source, scope, content, andvariety of anti-competitive behavior in the labor market. Drawing from a text corpusof 17,785 franchise disclosure filings, I find that 26% of filings from January 2011-August 2022 contained an employee noncompete clause that requires franchisees tobar employees from working for a competitor after leaving. Further, 44% containeda non-solicitation clause barring recruitment between firms, and 25% contain a nohire clause. Using new open-source, replicable methods to classify unstructured text,this paper also publicly releases: a document corpus, the software used to analyze thedata, a knowledge base of rules to detect anti-competitive clauses, and an opensourcemachine learning classifier to detect no poach clauses. While prior evidenceon anti-competitive practices largely draws from individual complaints, survey data,and limited hand-coded samples, this paper spotlights a large and representativesample of previously hidden inter-firm contracts that block employee mobility anddescribes tools that can automatically identify future unseen instances.