Insights

Market Position ISU is a mid-sized stop loss underwriter with a long-standing industry presence (founded 1991) and a hybrid MGU-style service model, presenting a stable, service-driven opportunity for targeted stop-loss reinsurance and carrier partnerships in need of specialized administrative support.

Growth Structure As a division within Companion Life, ISU combines entrepreneurial service flexibility with corporate support, signaling a potential sales angle around scalable administration and backroom services for growing MGUs or employers seeking compliant, integrated solutions.

Geographic Footprint Headquartered in Jacksonville with sales offices in Austin, Fort Worth, Minneapolis, and Orlando indicates regional reach in the Southeast and Midwest, offering a pathway to targeted regional expansions or carrier collaborations where local market knowledge matters.

Experience Advantage With a management team averaging over 30 years in the industry and a focus on claims, underwriting, marketing, and administration, ISU presents a compelling case for ancillary technology upgrades, analytics, and workflow automation to enhance efficiency and outcomes.

Technology Stack ISU utilizes a lightweight tech stack (Wix, Zepto, Polyfill, Envoy, WebsiteBuilder, Bootstrap), suggesting openness to modernization and APAC-like vendor services; sales opportunities exist for modern underwriting platforms, CRM integration, data analytics, and digital client portals.

ISU Tech Stack

ISU uses 8 technology products and services including Wix, WordPress, Wix eCommerce, and more. Explore ISU's tech stack below.

Media & News

ISU's Email Address Formats

ISU uses at least 1 format(s):
ISU Email FormatsExamplePercentage
FLast@isu-inc.netJDoe@isu-inc.net
93%
Last@isu-inc.netDoe@isu-inc.net
5%
FiLast@isu-inc.netJoDoe@isu-inc.net
2%

Frequently Asked Questions

What is ISU's phone number?

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You can contact ISU's main corporate office by phone at . 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 ISU's stock symbol?

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ISU is a publicly traded company; the company's stock symbol is TNL.

What is ISU's official website and social media links?

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ISU's official website is isu-inc.net and has social profiles on LinkedIn.

How much revenue does ISU generate?

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As of July 2026, ISU's annual revenue is estimated to be $100M - $250M.

What is ISU's NAICS code?

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ISU's NAICS code is 524 - Insurance Carriers and Related Activities.

How many employees does ISU have currently?

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As of July 2026, ISU has approximately 78 employees across 6 continents, including North AmericaEuropeAsia. Key team members include Broke Owner: P. S.Project Director: F. R.Claims Manager: R. D.. Explore ISU's employee directory with LeadIQ.

What industry does ISU belong to?

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ISU operates in the Insurance industry.

What technology does ISU use?

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ISU's tech stack includes WixWordPressWix eCommerceGoogle CloudSentryZeptoOffice 365KnowBe4.

What is ISU's email format?

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ISU's email format typically follows the pattern of FLast@isu-inc.net. Find more ISU email formats with LeadIQ.

When was ISU founded?

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ISU was founded in 1991.
ISU logo

ISU

InsuranceFlorida, United States51-200 Employees

ISU, International Specialty Underwriters, Inc., operates in the insurance sector with a focus on the stop-loss market, offering claims processing, underwriting, marketing, and administrative services. The company supports stop-loss programs nationwide through direct marketing and back-office operations. Founded in 1991, ISU became part of Companion Life in 2008 and was restructured as a division of Companion Life Insurance Company in 2020.

Headquartered in Jacksonville, Florida, ISU maintains additional sales offices in Austin and Fort Worth, Texas; Minneapolis, Minnesota; and Orlando, Florida. The organization emphasizes a detailed carrier-focused operating model and benefits from leadership with extensive industry experience across executive, underwriting, marketing, administration and claims functions.

Section iconCompany Overview

Phone number
Stock Symbol
TNL
NAICS Code
524 - Insurance Carriers and Related Activities
Founded
1991
Employees
51-200

Section iconFunding & Financials

  • $100M - $250M

    ISU's revenue is estimated to be in the range of $100M - $250M

Section iconFunding & Financials

  • $100M - $250M

    ISU's revenue is estimated to be in the range of $100M - $250M

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