IiSi

What IiSi does

IiSi is a privately held, for-profit firm headquartered in San Francisco, founded in 2009, that provides marketing, underwriting, and stop-loss claim administration and payment services to meet the business financial needs of its clients. The company operates in a niche segment of the U.S. insurance value chain, with stop-loss coverage indicating a focus on serving self-insured employers, plan sponsors, or carriers requiring reinsurance protection and related administrative support. IiSi is very small by staffing (1-10 employees) and is led by an Executive Vice President (Jim Henry) and two Regional Marketing Directors (Ryan Austin and Mike Holland), suggesting a lean operation oriented around direct client engagement rather than scale-driven distribution.

There is no public information on the company's underlying technology platform, product portfolio, pricing model, customer base, or revenue mechanics. The corporate website (iisinet.com) and other aggregated sources returned only verification/loading pages with no substantive content, and no funding rounds, partnerships, certifications, patents, or product launches are documented. As a result, the business model — beyond the high-level description of marketing, underwriting, and stop-loss claim administration services — cannot be further specified from the available evidence.

Name

IiSi

Website

https://iisinet.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

IiSi is a San Francisco-based, privately held firm founded in 2009 that provides marketing, underwriting, and stop-loss claim administration and payment services to insurance and self-insured employer clients.

Ownership category

akta.pro rank

Product category

Stop-Loss Insurance Administration

NAICS

Agencies, Brokerages, and Other Insurance Related Activities (5242), Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds (524292)

SIC

Insurance Agents, Brokers & Service (6411), Accident & Health Insurance (6321)

akta.pro primary industry

Stop-Loss & Reinsurance Administration (Captive/Level-Funded Support) (HLAEALAB)

akta.pro secondary industries

Stop-Loss & Excess Loss Coverage (Employer Sponsored) (HLAEAAAF), Self-Funded (ASO) Group Health Plans & Stop-Loss (FSAIAFAB), Stop-Loss / Medical Excess-of-Loss Reinsurance (FSAIANAI)

Keywords

• Stop-loss insurance
• Claim administration
• Underwriting services
• Insurance marketing
• Reinsurance services

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Core offering

IiSi delivers marketing, underwriting, and stop-loss claim administration and payment services aimed at meeting the financial needs of business clients, principally within the stop-loss insurance value chain. Its service portfolio combines distribution/marketing support, risk-evaluation/underwriting support, and back-office claim administration and payment processing for stop-loss coverage.

Product overview

No product or service information available from the source. The source page (iisinet.com) displayed only a verification/loading screen with the message "One moment, please..." with no accessible company content, product details, or service descriptions.

Differentiator

Problem solved

Functional benefit

Products and services

• Marketing Services

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves3 records

Expansion highlights1 record

Broad incumbents

• Tokio Marine HCC: Specialty insurance group with stop-loss and medical stop-loss capabilities; comparable as a stop-loss underwriter and administrator serving self-funded employer plans.
• Voya Financial: Established stop-loss carrier and benefits provider; competes with IiSi in marketing, underwriting and administering stop-loss for employer-sponsored plans.
• Sun Life Financial: Large incumbent carrier with a dedicated stop-loss (group disability/medical excess) business; comparable because it underwrites and administers stop-loss coverage for self-funded employer plans, the same line IiSi services.
• Symetra Life Insurance Company: Operates a sizable stop-loss insurance business; directly comparable as a stop-loss underwriter and administrator for self-funded employer groups.
• Cigna Group Insurance (including stop-loss): Major carrier with a stop-loss offering as part of its broader group benefits portfolio; competes in the same self-funded employer stop-loss market.

Direct peers

• HM Insurance Group: Niche stop-loss carrier focused exclusively on employer stop-loss and reinsurance; closely comparable to IiSi in product scope (underwriting + claim administration) and target market.
• Star Casualty Insurance Company (Markel): Stop-loss underwriting entity within Markel focused on employer medical stop-loss; comparable due to its specialized stop-loss underwriting and administration focus.
• Companion Life Insurance Company: Specialty stop-loss carrier underwriting medical excess-of-loss for employer groups; directly comparable to IiSi in the stop-loss distribution, underwriting and administration chain.

Emerging players

• Alliant Insurance Services: National insurance brokerage with a stop-loss practice; comparable on the marketing and distribution side of IiSi's stop-loss value chain.
• Ascensus (TPA / stop-loss administration): Third-party administrator with stop-loss administration capabilities serving self-funded plans; partially comparable to the claim administration component of IiSi's offering.

Market position

Strengths3 records

Weaknesses4 records

Competitive moat2 records

Key risks4 records

Key highlights3 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 IiSi