Insights

Specialized Product Offering Southern Insurance Underwriters (SIU) focuses on hard-to-place, specialty, and excess and surplus lines risks, presenting opportunities to collaborate with brokers and agents seeking tailored coverage solutions for complex and high-risk clients.

Growth Through Talent Acquisition Recent strategic hires in underwriting across diverse lines such as garage, professional, marine, and workers' compensation indicate ongoing expansion and talent development, suggesting potential partnerships to support capacity and product development.

Family-Owned Advantage As one of the largest family-owned MGAs in the U.S., SIU emphasizes stability and personalized service, which can be leveraged to build trust and deepen relationships with agents and brokers seeking reliable underwriting partners.

Robust Industry Engagement Active involvement in associations like AAMGA, NAPSLO, and PIA provides numerous networking opportunities to connect with industry stakeholders and identify prospects seeking innovative insurance solutions in niche markets.

Financial Strength & Market Presence With annual revenues ranging from $250 million to $500 million, SIU demonstrates substantial financial backing, making it a strong partner for large accounts and providing confidence for brokers and clients looking for reliable coverage options.

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Southern Insurance Underwriters, Inc. Tech Stack

Southern Insurance Underwriters, Inc. uses 8 technology products and services including CIM Technologies, Handlebars, Microsoft, and more. Explore Southern Insurance Underwriters, Inc.'s tech stack below.

CIM Technologies
Cad & Graphics
Handlebars
Javascript Frameworks
Microsoft
Miscellaneous
Microsoft Azure
Platform As A Service
Google Analytics
Web Analytics
Microsoft ASP.NET
Web Frameworks
WPForms
Web Platform Extensions
Microsoft IIS
Web Servers

Media & News

Southern Insurance Underwriters, Inc.'s Email Address Formats

Southern Insurance Underwriters, Inc. uses at least 1 format(s):

Southern Insurance Underwriters, Inc. Email Formats	Example	Percentage
FLast@siuins.com	JDoe@siuins.com	92%
First.Last@siuins.com	John.Doe@siuins.com	6%
Last@siuins.com	Doe@siuins.com	1%
FMiddleLast@siuins.com	JMichaelDoe@siuins.com	1%

Frequently Asked Questions

Where is Southern Insurance Underwriters, Inc.'s headquarters located?

Southern Insurance Underwriters, Inc.'s main headquarters is located at 4500 Mansell Road Alpharetta, Georgia 30022 United States. The company has employees across 2 continents, including North AmericaAsia.

What is Southern Insurance Underwriters, Inc.'s phone number?

You can contact Southern Insurance Underwriters, Inc.'s main corporate office by phone at

+1-678-498-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Southern Insurance Underwriters, Inc.'s official website and social media links?

Southern Insurance Underwriters, Inc.'s official website is siuins.com and has social profiles on LinkedIn.

How much revenue does Southern Insurance Underwriters, Inc. generate?

As of February 2026, Southern Insurance Underwriters, Inc.'s annual revenue is estimated to be $107M.

What is Southern Insurance Underwriters, Inc.'s SIC code NAICS code?

Southern Insurance Underwriters, Inc.'s SIC code is 6411 - Insurance Agents, Brokers, and Service NAICS code is 524 - Insurance Carriers and Related Activities.

How many employees does Southern Insurance Underwriters, Inc. have currently?

As of February 2026, Southern Insurance Underwriters, Inc. has approximately 134 employees across 2 continents, including North AmericaAsia. Key team members include Chief Executive Officer: W. D.Chief Technology Officer: D. C.Vice President - Marketing: B. B.. Explore Southern Insurance Underwriters, Inc.'s employee directory with LeadIQ.

What industry does Southern Insurance Underwriters, Inc. belong to?

Southern Insurance Underwriters, Inc. operates in the Insurance industry.

What technology does Southern Insurance Underwriters, Inc. use?

Southern Insurance Underwriters, Inc.'s tech stack includes CIM TechnologiesHandlebarsMicrosoftMicrosoft AzureGoogle AnalyticsMicrosoft ASP.NETWPFormsMicrosoft IIS.

What is Southern Insurance Underwriters, Inc.'s email format?

Southern Insurance Underwriters, Inc.'s email format typically follows the pattern of FLast@siuins.com. Find more Southern Insurance Underwriters, Inc. email formats with LeadIQ.

When was Southern Insurance Underwriters, Inc. founded?

Southern Insurance Underwriters, Inc. was founded in 1964.

Southern Insurance Underwriters, Inc.

InsuranceGeorgia, United States51-200 Employees

Southern Insurance Underwriters (SIU) was established in 1964 as a Georgia corporation.  Since that time SIU has grown to become one of the largest family owned MGAs in the country.  SIU has a broad range of property, casualty, and transportation products and specializes in hard to place, specialty and excess & surplus lines risks. With an experienced staff of seasoned underwriters, the scope of risks that can be underwritten ranges from the most simple property risks to highly sophisticated self-insured programs. 

SIU is active in the American Association of Managing General Agents (AAMGA), National Association of Professional Surplus Lines Offices (NAPSLO), the Independent Insurance Agents of Georgia, Alabama, Florida, and South Carolina and the Professional Insurance Agents (PIA) of Georgia, Alabama, Florida and South Carolina.