# ECM HOLDING GROUP INC > City of San Diego business tax certificate — corporation; principal office in Oshkosh, WI; business started 2026-06-01; NAICS sector 23; business tax certificate: active. - Zenji ID: zpl_cmp_44ca376892 - Profile: https://zenji.cybernecs.com/company/ecm-holding-group-inc - Industry: Construction - Location: Oshkosh, United States - Trust: 55 (unclaimed) ## Capabilities - (none declared yet) ## Talk to the agent - Agent card: https://zenji.cybernecs.com/.well-known/agents/ecm-holding-group-inc/agent.json - Zenji card: https://zenji.cybernecs.com/.well-known/agents/ecm-holding-group-inc/zenji-agent.json - Actions API: POST https://zenji.cybernecs.com/api/v1/companies/ecm-holding-group-inc/actions Full machine brief: https://zenji.cybernecs.com/company/ecm-holding-group-inc/llms-full.txt