Who makes the product, who sells it, and how money flows.
Covers car & home insurance, small business, hard-to-place specialty risks, and every player type from carriers to lead-gen platforms.
This article does not cover the software, data, and infrastructure companies that power insurance distribution. That ecosystem will be the focus of a separate article.
Written using public information only. Sources are listed at the end of the article.
Last updated April 2026
Insurance isn't one market — it's several, each with different economics, distribution, and regulation.
Figures are based on 2024 NAIC statutory data, S&P Global, ACLI/LIMRA, and other public market sources. U.S. insurance direct premiums written across P&C, life/annuity, and health reached roughly $3.3T in 2024.
| Category | Product | Market size | Commentary |
|---|---|---|---|
| P&C — Personal | Personal Auto | ~$360B | Largest personal line; price-driven and heavy D2C/lead-gen spend after 2024-2025 rate increases. |
| Homeowners | ~$170B | Bundled with auto; exposed to hurricane and wildfire risk. | |
| Pet | ~$4.7B | Fast-growing standalone line, newly separated in reporting. | |
| P&C — Commercial | Small Commercial | ~$100B | SME coverage including BOP bundles; increasingly sold online. |
| Commercial Auto | ~$71B | Fleet, trucking, and hired/non-owned auto exposures. | |
| Workers' Comp | ~$55B | Employer-mandated and state-regulated. | |
| Large Commercial / Casualty | $200B+ | Complex broker-led coverage for larger businesses. | |
| Financial Lines | $30B+ | D&O, E&O, EPL, and fiduciary liability. | |
| Cyber | ~$9B U.S. | Fast-growing standalone specialty line; global premiums are roughly $15B. | |
| E&S / Specialty | E&S / Surplus Lines | ~$130B | Hard-to-place risks written outside the admitted market; surged through the hard market. |
| Life & Annuities | Life | ~$170B | Term, whole, and universal; sold through advisors and agents. |
| Annuities | ~$434B | Retirement income products; surged with higher interest rates. | |
| Health | Health | $1.2T+ | Group and individual medical; heavily regulated. |
| Other Lines | Title, Crop, Mortgage | $40B+ | Niche lines with distinct, specialized distribution. |
Every insurance transaction involves two primary functions:
manufacturing the product and distributing it to the customer. Intermediaries connect them.
Turns capital and underwriting judgment into insurance products.
Manufacturing insurance involves two things: underwriting expertise (pricing risk) and capital (backing promises).
While most carriers are vertically integrated and do both, MGA and MGU models split them apart.
From a carrier's perspective, distribution is a choice between building demand directly or paying a distributor who already has customer trust.
In the broker channel, the broker owns the customer relationship: they find the client, advise on coverage, collect the application, and bring the risk to the carrier.
The accounting differs, but the economic question is the same: would the carrier rather spend cash to acquire a customer directly, or surrender margin to a licensed distributor who brings the customer?
| Actor | Channel / source | How it works | Customer sourcing | Expense type for carrier | Cost to carrier | Examples |
|---|---|---|---|---|---|---|
Carrier D2COwned funnel The carrier sells directly without an agent. Organic, SEO, GEO, paid ads, retargeting, and brand all roll up into one owned acquisition motion. | Carrier D2C | Quote and bind through the carrier's own site, app, or call center. No retail commission, but the carrier still pays to create demand. | Organic / SEO / GEO / paid ads | Marketing budget | Media CAC | GEICO, Progressive, Lemonade |
Embedded partnersPartner channel Insurance is presented inside another purchase journey. The partner owns the customer context; the carrier or agency handles the insurance transaction. | Embedded Partner | Insurance offer appears at the point of sale — mortgage closing, auto purchase, payroll setup, checkout, or another high-intent workflow. | Partner journey | Partner fee | Revenue share | Mortgage lenders, auto F&I, banks, Shopify |
Captive agencies% of premium Exclusive agencies sell for one carrier. The carrier controls the brand, product access, training, and often routes digital leads back to local offices. | Captive Agency | Local or digital agency tied to a single carrier. Leads can come from the carrier brand, referrals, community presence, phone, or local marketing. | Physical, phone, referral, carrier digital | Premium split | 5-10% | State Farm, Allstate, Farmers agents |
Independent agents / brokers% of premium Independent sellers shop multiple carriers. They own their customer acquisition and may source business digitally, through purchased leads, referrals, local presence, or niche expertise. | Independent Agent / Broker | Can advise, quote, and bind across multiple carriers. Acquisition varies widely: SEO, paid ads, bought leads, referrals, physical offices, producer networks, or outbound. | Digital, purchased leads, physical, referral | Premium split | 8-15% | Local agencies, Goosehead, Marsh, Gallagher |
Lead-gen platformsCPL / CPA Lead-gen is demand supply, not necessarily the final seller. Carriers and agencies buy leads either directly from publishers/comparison sites or through arbitrage platforms. Prices shown for US personal auto — the most liquid lead market. | Publisher-direct leads | Content publishers or comparison sites attract insurance shoppers and sell clicks, calls, forms, or completed quote starts directly to carriers and agencies. | SEO, content, comparison UX | Marketing budget | $5-80 / lead | US News, NerdWallet, Bankrate, The Zebra, Insurify |
| Arbitrage platform leads | Marketplaces aggregate demand from publishers, qualify shoppers, and resell leads via bidding or routing rules. | Marketplace / bidding | Marketing budget | $30-80 / lead | MediaAlpha, QuinStreet, EverQuote |
Carriers don't want to deal with thousands of small retail agencies one by one. And a local 3-person agency can't realistically maintain relationships with hundreds of carriers. Intermediaries solve both problems — they aggregate each side so the other doesn't have to.
They aggregate access between retail agents and specialty carriers, MGAs, and MGUs, helping place risks when an agent lacks a direct appointment or does not know which market has appetite.
This is a separate axis. In admitted lines, many agents can access standard carriers directly. In non-admitted / E&S, wholesale brokers become more important because markets are specialized, access is restricted, and appetite changes quickly.
The same value chain takes different shapes depending on the product, market, and strategy.
How a dollar of premium flows through the value chain — from customer to carrier, claims back out, and the customer acquisition costs that drive it all.
Select a product to see typical economics.
Kinro sits in the distribution layer: it helps brokers, agencies, MGAs, MGUs, and carriers turn customer intent into qualified, bindable insurance conversations.
The structure exists everywhere, but relative importance varies by market.
Quick reference for every term used on this page.
Public sources used to anchor the market-size figures, carrier examples, channel economics, and geographic claims in this article.