Why choose missmissouri employers mutual insurance? Missouri Employers Mutual Ins. has a broad appetite for hundreds of business types and industries throughout the MO state. And they offer four rate tiers to provide more competitive quotes to businesses who qualify for premium discounts.How do i register my business for unemployment tax in missouri? Register your new business for unemployment tax with the state’s online registration. Is your business already registered with the Missouri Department of Revenue? Employers must report workers’ wages each quarter to determine monetary benefits if a worker files an unemployment claim.Who is the largest workers comp insurance company in missouri? Missouri Employers Mutual is currently the largest workers comp insurance company in the state. They wrote their first workers compensation policy in 1995, after getting a $5 million dollar loan from the state. Their purpose was to help foster competition on rates and MEM now offers some of the lowest rates in Missouri for select class codes.How do i contact emc claims office? 888-EMC-CALL (888-362-2255) — 24-Hour Claim Line Email: General: [email protected] Claims: [email protected] Fax Numbers: Underwriting: 888-992-6211 Claims: 888-992-6212 Administrative: 888-992-6213