Southern Insurance Underwriters

What Southern Insurance Underwriters does

Southern Insurance Underwriters (SIU) is a Certified Managing General Agency headquartered in Alpharetta, Georgia, with a regional office in Lake Mary, Florida. The firm has operated as a family-owned intermediary for over 50 years, placing independent insurance agents into appointments with 120+ A-Rated carriers across admitted and non-admitted markets. Core revenue is generated through MGA commissions earned on policies underwritten through independent agents, supplemented by recurring and usage-based income from wholly-owned subsidiary SIUPREM, Inc., which provides premium finance across all 50 states.

SIU's product breadth spans Personal Property (HO-3, DP1/DP3, Mobile Home, Earthquake, High Value Homeowners, Vacant/Renovation), Commercial Property & Casualty (Artisan Contractors, Construction, Restaurants, Environmental Risk, Liquor Liability), Commercial Transportation (Trucking, Auto, Garage), Marine, Professional Lines via the Standard Underwriters Network, and Specialty Programs including CAT Wind, Workers Comp, Inland Marine, Farm & Ranch and Captive Insurance Services. The technology stack centers on an Online Rating portal (HO3, Dwelling Fire, Mobile Home), an Electronic Policy Delivery System distributing PDFs to agents and insureds, a Direct Bill product, and the EasyPay online payment portal — all integrated with SIUPREM premium finance and major AMS platforms.

Distribution runs through a network of appointed independent agents in the Southeast, supported by dedicated field Marketing Representatives conducting daily agency visits. Operational scope includes offices in Georgia and Florida, ~175 employees, certifications including Certified MGA status and a 5-Star MGA designation from Insurance Business America, and active memberships in WSIA, AAMGA, NAPSLO, Target Markets, USA Alliance, PIA South, PIA Florida and associated state PIA chapters. Leadership identified includes Wesley C. Duesenberg (CEO) and Brad Budd (Vice President - Marketing).

Name

Southern Insurance Underwriters

Legal name

Southern Insurance Underwriters, Inc.

Website

https://site.siuins.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

51–100 employees

Short description

Southern Insurance Underwriters is a family-owned Certified Managing General Agency based in Alpharetta, Georgia, placing independent insurance agents across the Southeast with 120+ A-Rated carriers and operating the SIUPREM premium finance platform in all 50 states.

Ownership category

akta.pro rank

Product category

Managing General Agency (Wholesale Insurance Distribution)

NAICS

Insurance Agencies and Brokerages (52421), Agencies, Brokerages, and Other Insurance Related Activities (5242)

SIC

Insurance Agents, Brokers & Service (6411)

akta.pro primary industry

Insurance Program Administration & MGA/MGU Services (FSAEADAK)

akta.pro secondary industries

Wholesale Insurance Brokerage (Excess & Surplus Lines) (FSAEADAD), Surplus Lines Property (CAT/High-Hazard) (FSAJAGAB), Professional Liability (E&O) (FSAJAGAC), Construction Specialty (Wrap-Ups/Builders Risk/Contractors) (FSAJAGAH), Large Commercial Package (National Accounts) (FSAJAFAC)

Keywords

• Managing general agency
• Wholesale insurance distribution
• Commercial property casualty
• Premium finance services
• Independent insurance agents

Headquarters

HQ city

Alpharetta

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. MGA Commission Revenue: SIU operates as a Managing General Agency earning commissions from insurance carriers for underwriting and placing insurance business through their network of independent agents.
2. Premium Finance Services: SIUPREM, Inc. provides premium financing for insurance coverage, generating revenue through financing fees.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Southern Insurance Underwriters is a Certified Managing General Agency that underwrites and places insurance business on behalf of over 120 A-Rated carriers for independent agents across the southeast United States. Through wholly-owned subsidiary SIUPREM, Inc., SIU also provides premium financing for personal and commercial lines in all 50 states. Supporting services include online rating, electronic policy delivery, direct bill, EasyPay online payments, and claims submission assistance.

Product overview

Southern Insurance Underwriters (SIU) operates as a Certified Managing General Agency offering a comprehensive portfolio of insurance products across multiple lines: Personal Property (DP1, DP3, HO-3, Earthquake, High Value Homeowners, Mobile Homes, Vacant/Renovation coverage), Commercial Property & Casualty (Artisan Contractors, Beauty/Nail/Barber, Construction, Environmental Risk, Equipment Breakdown, Liquor Liability), Commercial Transportation (Trucking, Auto, Garage), Marine, Standard Underwriters Network, and Specialty Programs (CAT Wind, Professional Lines, Inland Marine, Farm & Ranch, Workers Comp). SIU provides access to over 120 A-Rated carriers spanning all 50 states. Beyond insurance products, SIU offers operational services including SIUPREM premium finance (integrated with Agency Management Systems), Online Rating, E-Policy Delivery, Direct Bill, EasyPay online payments, and Claim Submission assistance.

Differentiator

Problem solved

Functional benefit

Products and services

• Personal Property Insurance Personal lines coverage including DP1, DP3 (Dwelling Fire), Earthquake, High Value Homeowners (Dwellings $1M & up), HO-3, Mobile Homes, and Vacant, Renovation & Builders Risk. For independent insurance agents placing personal property coverage in the southeast.
• Commercial Property & Casualty Insurance Commercial coverage including Artisan Contractor, Beauty/Nail/Barber, Environmental Risk, Equipment Breakdown, Liquor Liability, Construction, and Restaurants insurance programs. For independent agents placing commercial P&C coverage.
• Commercial Transportation Insurance Transportation sector coverage including Commercial Trucking, Commercial Auto, and Garage insurance products. For independent agents placing transportation-related risks.
• Standard Underwriters Network (SUN) Standard lines network providing access to Medical Clinics and other standard market coverages, including Artisan Contractors, Beauty/Nail/Barber, Restaurants, and Liquor Liability.
• Marine Insurance Marine insurance including Boats, Marine Contractors & Cargo, Marine Products Manufacturing, Recreational Marine, and Commercial Ocean Marine coverage.
• Specialty Programs Insurance Specialty coverage programs including CAT Wind, Professional Lines, Inland Marine, Farm & Ranch, Deadly Weapon Protection, Forestry Program, Workers Comp, and Captive Insurance Services.
• SIUPREM Premium Finance Full-service premium finance company servicing independent agents since 1969, providing financing for both personal and commercial lines insurance coverage in all 50 states. Fully integrated with all AMS products.
• Online Rating Digital rating platform allowing agents to obtain quotes for HO3, Dwelling Fire, and Mobile Home coverage online.
• E-Policy Delivery Electronic Policy Delivery System enabling independent agencies to receive policy documents via email in PDF format, including Agent and Insured copies of policies, renewals, and endorsements.
• Direct Bill Billing solution where SIU handles all renewal payments, notices, and sends complete renewal quote details to both Agent and Insured while maintaining full commissions for agents.
• EasyPay Online Payment Portal Online payment portal for Agents and Insureds providing convenient insurance payment processing.
• Claim Submission Assistance Claims reporting service assisting with reporting new claims to insurance company claim departments and ongoing claim communications.

Named customers1 record

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• WSIA (Wholesale & Surplus Line Association)minorOthersProfessional association membership for wholesale and surplus line insurance professionals.
• AAMGA (American Association of Managing General Agents)minorOthersProfessional association for managing general agents in the insurance industry.
• NAPSLO (National Association of Professional Surplus Lines Office)minorOthersProfessional association for surplus lines insurance professionals.
• Target MarketsminorOthersInsurance industry association and program administrator network.
• USA AllianceminorOthersInsurance industry alliance organization.
• PIA (National Association of Professional Insurance Agents) - South, Florida, and State ChaptersminorOthersProfessional association for independent insurance agents at national and state levels including PIA South, PIA Florida, and chapters in Alabama, Georgia, Mississippi, South Carolina, and Tennessee.
• FAIA (Florida Association of Insurance Agents)minorOthersState-level professional association for insurance agents in Florida.
• 120+ A-Rated Insurance CarrierscoreStrategic or Co-development PartnerSIU maintains relationships with over 120 A-Rated carriers (both Admitted & Non-Admitted) to provide independent agents access to diverse insurance markets.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Risk Placement Services (RPS): RPS is a national wholesale broker and MGA offering specialty, E&S, and standard commercial lines to independent agents. Like SIU, it aggregates multiple carrier appointments and serves agents across property, casualty, transportation, and professional lines.
• CRC Insurance Services: CRC is a wholesale insurance broker and MGA group serving independent agents across commercial, personal, and specialty lines. It is a direct peer to SIU with similar appointment-based, multi-carrier distribution and overlapping product lines including transportation and property.
• Amwins: Amwins is the largest US wholesale insurance distributor and managing general underwriter, providing specialty and E&S products through independent agents nationally. It is directly comparable to SIU as a multi-line MGA/wholesaler, with much greater scale and broader geographic reach.
• Burns & Wilcox: Burns & Wilcox is a national wholesale broker and MGA offering personal and commercial specialty lines, including high-value homeowners and excess casualty, through independent agents. It is closely comparable to SIU's specialty and personal property franchise.
• Brown & Riding Insurance Services: Brown & Riding is a national wholesale insurance broker and program manager serving independent agents with specialty, E&S, and commercial coverage. Like SIU, it aggregates carrier capacity and operates across multiple specialty verticals.

Emerging players

• USG Insurance Services: USG is a fast-growing retail agency network and MGA platform that distributes through independent agents across multiple states. It is comparable to SIU as a multi-line distribution aggregator, though its growth profile is more PE-driven.
• Atlas General Insurance Services: Atlas General is a national MGA and program manager offering commercial and personal specialty products through agents. It overlaps with SIU's specialty programs and E&S distribution model, though with a more national footprint.

Broad incumbents

• ICW Group Insurance Companies: ICW Group is a regional property and casualty carrier offering commercial and workers' compensation products through independent agents. It serves as one of the carriers accessible through SIU's network and represents the incumbent carrier-side counterpart to SIU's MGA distribution role.

Others

• Applied Systems: Applied Systems is the leading provider of agency management systems (AMS) used by independent agents across the US. SIU's SIUPREM platform integrates with AMS products, making Applied a key technology ecosystem partner rather than direct competitor.

Regional players

• Glatfelter Insurance Group: Glatfelter is a regional MGA and program manager serving the mid-Atlantic and southeast US with specialty and commercial programs distributed through agents. Geographic and product overlap with SIU make it a regional peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/siuins
• Facebookfacebook.com/siuins
• LinkedInlinkedin.com/company/550270

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Southern Insurance Underwriters