Carrier vs Agency: The Difference That Changes Everything
Before comparing these three, you need to understand that they're not all the same type of entity — and that distinction affects how you shop, who you call at claims time, and what options you have.
Insurance carrier
The company that actually underwrites and backs the policy. They set the terms, pay claims, and hold the financial risk. Examples: Markel, Great American.
Insurance agency
A broker that sells policies from multiple carriers. They don't underwrite the risk themselves — they connect you to carriers. Example: Marshall+Sterling (as an agency).
Both
Some entities both underwrite their own products AND sell through agency channels. Marshall+Sterling acts as an agency that can access both Markel and Great American policies.
Why this matters for you
If you go directly to Markel or Great American, you get one carrier's specific policy terms. If you go through Marshall+Sterling, they can quote you on coverage from multiple carriers — sometimes including Markel or Great American — and find the best match for your horse's specific profile. This is particularly valuable for horses with complex health histories, unusual disciplines, or high values where carrier underwriting varies significantly.
Markel Equine Insurance
Markel is one of the oldest and most recognized names in specialty insurance, with equine coverage dating back decades. They underwrite their own policies directly and sell through appointed independent agents. Their equine program covers mortality, major medical, surgical, liability, and farm/ranch coverage — making them one of the few carriers where you can bundle horse insurance with broader farm and property protection under one policy relationship.
They are the official insurer for several riding associations and are particularly strong for competition horses in hunter/jumper, dressage, and eventing. Their 24/7 claims line and direct carrier relationship is frequently cited positively by owners who have filed claims.
Key facts
check_circleMarkel's strengths
- ▸Strong farm/ranch bundling — one relationship covers horses AND property
- ▸Direct carrier relationship — no agency middleman at claims time
- ▸Online mortality quote tool — faster initial pricing
- ▸Guaranteed renewal endorsement available
- ▸Official partner for multiple riding associations
- ▸Equine Essentials bundled coverage available
cancelMarkel's limitations
- ▸One carrier's terms only — no ability to shop alternatives
- ▸Major medical limited to $5,000–$10,000 on most policies
- ▸75% of insured value required to add major medical endorsements
- ▸Higher premiums reported for high-risk activities
- ▸20% co-pay on major medical/surgical claims
Sample rates — Markel (10-year-old horse, no pre-existing conditions)
Rates from forum reports and published industry data. Verify with a current Markel quote.
Best for:
Farm/ranch owners wanting to bundle horse + property coverage. Competition horses needing association-recognized coverage. Owners who prefer a direct carrier relationship over an agency.
Marshall+Sterling Equine
Marshall+Sterling is a 100% employee-owned independent insurance agency. In business since 1864, their dedicated Equine Division is one of the largest equine divisions of any independent insurance agency in the United States — staffed by horse insurance experts, many of whom have decades of experience as both horse people and licensed insurance agents. They know horses, and they know horse insurance.
They are the official equine insurance provider for USEA (through 2027) and have deep relationships with equestrian associations across disciplines. Their size means volume relationships with carriers — which can translate to access to coverage for difficult-to-place horses and the ability to advocate on clients' behalf during claims.
Key facts
check_circleMarshall+Sterling's strengths
- ▸Access to multiple carriers — one call shops the market
- ▸Largest equine agency in the US — scale matters for difficult placements
- ▸Agent advocacy at claims time — someone in your corner
- ▸Broad horse age range (30 days to 20 years)
- ▸Major medical limits up to $15,000
- ▸Multi-horse policies and facility coverage available
- ▸No vet cert required for horses under $50,000 with no pre-existing conditions
cancelMarshall+Sterling's limitations
- ▸Policy terms depend on which carrier they place you with — not standardized
- ▸Claims go to the carrier, not Marshall+Sterling — they facilitate, not pay
- ▸Variable reimbursement rates depending on carrier selected
- ▸Coverage cannot be bound online — agent contact required
Sample rates — via Marshall+Sterling (10-year-old horse, no pre-existing conditions)
Rates from published Marshall+Sterling FAQs and industry data. Carrier selection affects final rate.
Best for:
Owners who want competitive rates across multiple carriers. Horses with complex profiles or unusual disciplines. High-value horses ($50,000+) where carrier selection matters. Barns and facilities needing multiple horses or Care Custody and Control coverage. USEA members who benefit from association pricing.
Great American Equine Insurance
Great American Insurance Group's equine division is one of the largest equine insurance underwriters in the country. Unlike Markel, Great American is primarily a wholesale/reinsurance market in equine — meaning they predominantly sell through agents and agencies rather than directly to consumers. Marshall+Sterling is one of their major distribution partners.
They are known for competitive major medical coverage, flexible limits up to $15,000, and strong performance horse programs. Their AM Best A+ (Superior) rating reflects exceptional financial strength — important when you're trusting a carrier to pay a $15,000 surgery bill without question. You typically access Great American through an appointed agent rather than directly.
Key facts
check_circleGreat American's strengths
- ▸A+ (Superior) AM Best rating — highest financial strength tier
- ▸Major medical limits up to $15,000
- ▸Competitive rates on performance horses
- ▸Strong breeding stallion and mare infertility products
- ▸Loss of use coverage available
- ▸International transit coverage available
cancelGreat American's limitations
- ▸Not directly accessible — must go through an appointed agent
- ▸Less brand recognition with average horse owner (you may not know you're with them)
- ▸No online direct quote tool for consumers
Best for:
Performance horses needing $10,000–$15,000 major medical limits. Breeding operations needing stallion/mare infertility coverage. High-value horses where financial strength of the carrier matters. Owners accessing coverage through Marshall+Sterling or another appointed agent.
Feature Comparison Table
Feature
Markel
Marshall+Sterling
Great American
✓ = available, ✗ = not available, partial = limited availability. Co-pay and coverage terms vary by policy — verify with a current quote.
Sample Rate Comparison
10-year-old horse, no pre-existing conditions. Rates are estimates based on published industry data — get a quote for exact pricing.
Markel
$10k dressage — mortality only
~$290–$300/yr
$10k horse — mort + $5k medical
~$490–$550/yr
$15k hunter/jumper — mort + $5k medical
~$950/yr
Marshall+Sterling
Recommended$10k dressage — mortality only
~$290–$300/yr
$10k horse — mort + $5k medical
~$490–$560/yr
$10k hunter/jumper — mort + $7.5k medical
~$590–$700/yr
Great American
$10k pleasure — mortality only
~$290–$325/yr
$10k horse — mort + $7.5k medical
~$550–$650/yr
$25k eventer — mort + $15k medical
~$1,600–$2,000/yr
All rates are estimates from published industry data as of April 2026. Your quote will vary based on your horse's specific profile, health history, and the carrier's current underwriting guidelines. Great American is typically accessed through an agent like Marshall+Sterling.
Which Should You Choose?
chevron_rightChoose Markel if...
You own a farm or ranch and want to bundle horse mortality with property and liability coverage under one carrier. You're a competitive rider in an association where Markel is the official partner. You want the ability to get an online mortality quote without calling an agent first. Your horse's medical needs fit within a $10,000 major medical limit.
starChoose Marshall+Sterling if... Recommended for most
You want one conversation that shops multiple carriers for your horse's specific profile. Your horse has a complex health history, is older, or has an unusual discipline that might be harder to place. You want an agent who can advocate for you at claims time rather than dealing with a carrier directly. You're a USEA member and want access to association pricing. You need $15,000 major medical limits. You're managing multiple horses or a facility.
chevron_rightChoose Great American (through an agent) if...
Financial strength is your top priority — their A+ rating is the highest available. You need maximum major medical limits ($15,000). You have a high-value performance or breeding horse. You're comfortable going through an appointed agent (like Marshall+Sterling) rather than accessing the carrier directly.
The practical answer for most horse owners
Call Marshall+Sterling first. As an agency, they'll shop your horse across multiple carriers — including Great American — and tell you which option fits your horse best and at what price. You get market access without having to call three separate companies.
Jimmy Karnezis
Insurance Specialist · Updated April 2026
Independent Editorial Review
Not insurance advice. Get a personalized quote from a licensed agent.
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Marshall+Sterling is the largest equine insurance agency in the US. One call shops multiple carriers so you get the best rate for your horse's specific profile — without calling each company separately.
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Frequently Asked Questions
Is Markel or Marshall+Sterling better for horse insurance?
They serve different needs. Markel is a carrier that writes policies directly — you get Markel's specific terms. Marshall+Sterling is an independent agency that shops coverage across multiple carriers. If you want one specific Markel policy, contact an appointed agent. If you want someone to compare multiple carriers and find the best fit, Marshall+Sterling as an agency makes more sense for most horse owners.
What is Great American horse insurance?
Great American Insurance Group's equine division is one of the largest equine insurance underwriters in the US, offering mortality, major medical ($15,000 limits), surgical, loss of use, and liability coverage. They carry an AM Best A+ (Superior) rating — the highest tier of financial strength. They sell primarily through appointed agents rather than directly to consumers, meaning you'd typically access their products through an agent like Marshall+Sterling.
Does Marshall+Sterling use multiple insurance carriers?
Yes. Marshall+Sterling is an independent equine insurance agency — not a carrier. They work with multiple underwriting carriers including Great American, Markel, Broadstone, and others. As the largest equine insurance agency in the US, they can shop your horse's profile across multiple companies to find competitive pricing and appropriate coverage terms.
Which horse insurance company pays claims fastest?
All three operations offer 24/7 claims reporting. Actual speed varies by claim complexity and documentation. Markel is frequently cited in owner communities for responsive claims handling. Marshall+Sterling as an agency can advocate on your behalf during a claim. The most important factor in fast resolution is notifying your insurer immediately when an incident occurs and keeping complete veterinary records.