{"source":"Breaknorm","page":"https://breaknorm.co/tools/calltower","license":"https://breaknorm.co/terms","slug":"calltower","name":"calltower","vendor":"","category":"","website":{"facet":"calltower","companies":82,"by_country":[["US",78],["CA",2],["ES",1]],"by_headcount":[["11-50",30],["51-200",22],["2-10",11],["201-500",10],["0-1",3],["1001-5000",3],["501-1000",2]],"by_vertical":[["business_finance_services",25],["manufacturing_industry",15],["property_construction",11],["technology_software",11],["community_associations_public",6],["hospitality_travel",4],["health_care",3],["automotive",2],["transport_logistics_rental",2],["commerce_trade",1],["utilities_infrastructure",1]],"mid_plus":37,"stack":[["microsoft_365",78],["microsoft_intune",46],["microsoft_entra_id",45],["cloudflare",23],["mailchimp",22],["sendgrid",22],["apple",17],["anthropic",11],["hubspot",10],["mailchimp_transactional",10],["proofpoint_essentials",10],["amazon_ses",9],["exclaimer",9],["mimecast",9],["atlassian",8],["dmarcian",7]]},"jobs":{"companies":0,"postings":0,"posting_companies":0,"posted_30d":0,"companies_30d":0,"posted_90d":0,"companies_90d":0,"by_country":[],"by_headcount":[],"by_vertical":[],"by_function":[],"co_tech":[]},"overlap":0,"dns":null,"outbound":null,"top_note":"Companies with 201+ employees and high-confidence evidence in their own postings; job boards and portals left out.","top_total":0,"top":[],"footprint_top_total":3,"footprint_top_note":"Companies with 1,000+ employees whose website or DNS carries calltower but whose postings never name it: the part of the market job data alone misses.","footprint_top":[{"domain":"captiveaire.com","name":"CaptiveAire","country":"US","city":"Raleigh","headcount":"1001-5000","leaf":"ventilation_fan_manufacturing","summary":"CaptiveAire is a manufacturer that produces commercial kitchen ventilation systems and HVAC equipment, including fans, heaters, ductwork, and HVAC units."},{"domain":"perkinseastman.com","name":"Perkins Eastman","country":"US","city":"Washington","headcount":"1001-5000","leaf":"architecture_practices","summary":"Perkins Eastman is an architecture and design firm that provides urban design, commercial and office, residential, healthcare, education, and transportation and."},{"domain":"ardurra.com","name":"Ardurra","country":"US","city":"Auburn","headcount":"1001-5000","leaf":"general_engineering_consultancy","summary":"Ardurra is an engineering firm that provides infrastructure solutions across water, wastewater, transportation, public works, aviation, environmental, civil and."}],"countries":["us"],"as_of":"2026-11-05","updated_at":"2026-10-30","hash":"368d3b086a9ad964","index_tier":1,"prev":{"as_of":"2026-11-04","footprint":82,"jobs_companies":0}}