MGA vs. Broker vs. Carrier: Who Does What

The short answer (as of August 2026)

A carrier (insurer) is the company that assumes the risk, issues the policy, and pays claims. A broker helps the buyer find, compare, and place coverage and — importantly — legally represents the buyer, not the insurer. An MGA (managing general agent) is a firm the carrier delegates underwriting authority to for a specialized class of business, so it acts on the carrier's behalf. In short: the carrier bears the risk, the MGA underwrites on the carrier's behalf, and the broker works for you (IRMI).

The Carrier: Who Bears the Risk

The carrier — also called the insurer or insurance company — is the entity that actually takes on your risk (IRMI):

• It assumes the risk. When you buy a policy, the carrier is the party contractually obligated to pay covered claims. Its balance sheet and financial strength stand behind your coverage.
• It issues the policy. The policy contract is between you and the carrier, even if you never speak to the carrier directly.
• Its financial strength matters most. Because the carrier is who pays your claims, its rating (AM Best, S&P) is the single most important thing to check about the company behind a quote.

Everything else in the chain exists to connect you to a carrier and to help decide, on the carrier's behalf, whether and how to insure you. But the carrier is the ultimate risk-bearer — the party you're really relying on when you file a claim.

The Broker: Who Works for the Buyer

A broker is the party on your side of the table (IRMI):

• It represents the buyer. This is the defining feature. Unlike an agent who represents the insurer, a broker legally represents you — the policyholder — and works to find and place coverage that fits your needs.
• It shops the market. An independent broker isn't tied to one carrier; it can approach multiple insurers, compare terms and pricing, and advocate for you at renewal and at claim time.
• It advises on program design. A good broker helps you decide what coverage you need, what limits your contracts require, and how the pieces fit together.

There's a related term worth clarifying: an agent typically represents one or more carriers (a "captive" agent represents a single insurer; an "independent" agent represents several). A broker, by contrast, represents you. In practice many firms hold both licenses, but the distinction — whose interests you legally represent — is what matters. A brokerage like OnePark Risk sits on the buyer's side.

The MGA: Underwriting on the Carrier's Behalf

A managing general agent (MGA) is the specialized middle layer that often confuses buyers (IRMI):

• It holds delegated underwriting authority. A carrier grants an MGA the authority to underwrite, bind, and sometimes administer a specific class or program of business on the carrier's behalf. The MGA acts for the carrier, within limits the carrier sets.
• It specializes. MGAs typically focus on a niche — a particular industry, coverage line, or program — where their expertise lets a carrier write business it couldn't efficiently underwrite itself.
• It's not the risk-bearer. The MGA underwrites and administers, but the carrier behind it still assumes the risk and stands behind the claims. When you see a program "powered by" or "underwritten by" a named carrier, an MGA may be the one actually building the program.

So an MGA sits between the broker and the carrier: your broker may place your coverage through an MGA's program, which is itself backed by a carrier. Knowing the MGA is on the carrier's side — not yours — clarifies why your independent broker's role is distinct.

How the Chain Fits Together

Putting the roles in order clarifies who does what and for whom (IRMI):

A typical placement flows like this: you tell your broker what you need; the broker shops carriers — sometimes through an MGA's specialized program — and places the coverage; the carrier issues the policy and, if a claim arises, pays it. The one party in that chain contractually on your side is the broker.

Why This Matters When You Buy

Understanding the roles changes how you read a quote and choose who to work with:

• Check the carrier, not just the brand. A program may be marketed under an MGA's or platform's name, but the carrier behind it is who pays claims — so confirm the issuing carrier and its financial strength rating.
• Know who represents you. An independent broker can shop multiple carriers on your behalf; a captive agent or a single-carrier platform is limited to its own market. If choice and advocacy matter, that distinction is decisive.
• Understand delegated authority. If your coverage runs through an MGA program, the MGA is making underwriting decisions on the carrier's behalf — useful to know when you're negotiating terms or a renewal.

For a deeper look at how single-carrier platforms compare to independent brokers, see our full-stack insurtech vs. independent broker explainer.

Work with a Broker on Your Side: OnePark Risk

OnePark Risk is an independent brokerage — meaning we represent you, the buyer, not any single carrier. We place coverage with multiple A-rated carriers (sometimes through specialized MGA programs), compare terms on your behalf, and advocate at renewal and at claim time. Request a coverage review and you'll have someone in the chain who works for you.

Sources

• Glossary of Insurance & Risk Management Terms — International Risk Management Institute (IRMI)