Top 10 Fastest-Growing Insurance Companies in the United States by Premiums

Are you searching for the fastest-growing insurance companies in the United States? We’ve got you covered.

The U.S. insurance market is one of the largest and most competitive in the world. Every year, thousands of insurers compete for market share, but only a few rise rapidly due to innovation, customer trust, and strategic growth. 

In this post, we explore the top 10 fastest-growing insurance companies in the United States by premiums in 2025. We will highlight their background, specialized policies, and what sets them apart.

If you’re looking for the fastest-growing insurance companies in the USA or curious about where the industry is heading, this detailed guide is for you.

Below are the fast-rising insurance providers in America:

1. Lemonade Inc.

Headquarters: New York City, NY
Founded: 2015
Specialty: Renters, homeowners, pet, life, and car insurance

Lemonade started as a disruptor in the insurtech space. By using AI and behavioral economics, the company streamlined claims processing to just seconds in some cases. In 2025, Lemonade reported one of the highest YoY premium growth rates, driven largely by its aggressive expansion into Europe and the addition of auto insurance in more U.S. states.

What makes Lemonade different is its commitment to a giveback model. Any unclaimed money goes to a charity of the policyholder’s choice.

2. Hippo Insurance

Headquarters: Palo Alto, CA
Founded: 2015
Specialty: Homeowners insurance

Hippo focuses on modernizing homeowners insurance with proactive monitoring through smart devices. With smart-home tech integrated into its offerings, Hippo helps policyholders prevent damage before it happens. 

This approach has driven their retention and acquisition rates, especially among millennials buying homes for the first time. They’ve also grown rapidly due to partnerships with mortgage lenders and homebuilders across the country.

3. Clearcover

Headquarters: Chicago, IL
Founded: 2016
Specialty: Auto insurance

Clearcover is a digital-first auto insurer that emphasizes affordability and fast claims. The company uses machine learning to assess risk more precisely than traditional insurers. As of 2025, Clearcover’s premium growth surged due to its low operating costs and nationwide expansion.

Its API-first platform also makes it easy for car dealers and fintech companies to integrate insurance offerings.

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4. Root Insurance

Headquarters: Columbus, OH
Founded: 2015
Specialty: Auto insurance based on driving behavior

Root uses telematics to offer customized auto insurance pricing. Drivers are rated based on how safely they drive rather than traditional risk factors like credit scores. Though the company has faced regulatory hurdles, it remains one of the fastest-growing in terms of earned premiums in 2025.

Root’s model has attracted tech-savvy and cost-conscious consumers in urban areas.

5. NEXT Insurance

Headquarters: Palo Alto, CA
Founded: 2016
Specialty: Small business insurance

NEXT Insurance is one of the fastest-growing commercial insurers in the U.S., specializing in small business coverage. It offers general liability, professional liability, workers’ compensation, and more. All these policies are accessible online within minutes.

What helped fuel their 2025 growth was expanding partnerships with platforms like QuickBooks and Shopify, making business insurance more accessible for digital entrepreneurs.

6. Oscar Health

Headquarters: New York City, NY
Founded: 2012
Specialty: Health insurance for individuals and small groups

Oscar Health uses technology and telemedicine to deliver a more personalized healthcare experience. With the continued growth of ACA marketplaces and employer-sponsored plans, Oscar saw a significant spike in premiums in 2025.

Their mobile-first platform has made them especially appealing to younger demographics, and their virtual care options have reduced claims costs.

7. Kin Insurance

Headquarters: Chicago, IL
Founded: 2016
Specialty: Homeowners insurance in disaster-prone areas

Kin is unique for targeting underserved markets, like Florida and Louisiana. These two locations are where traditional insurance companies in the United States are retreating due to natural disaster risks. By leveraging data science, Kin offers dynamic pricing and quick digital onboarding.

The company saw a sharp rise in premiums after Hurricane Ian, as homeowners sought reliable, tech-friendly alternatives to legacy insurers.

8. Clover Health

Headquarters: Franklin, TN
Founded: 2013
Specialty: Medicare Advantage plans

Clover Health is one of the fastest-growing Medicare Advantage providers in the U.S. Their growth in 2025 was fueled by a sharp increase in baby boomers enrolling in digital-first Medicare plans.

With in-house software like Clover Assistant, doctors get real-time data insights, improving care quality while keeping premiums competitive.

9. Ethos Life

Headquarters: San Francisco, CA
Founded: 2016
Specialty: Life insurance

Ethos offers term life insurance with no medical exams and instant underwriting. Their platform is designed to simplify life insurance, making it fast and accessible, especially for younger families.

Backed by major investors, Ethos significantly increased its market share in 2025. This was possible, thanks to smart influencer marketing and API integrations with financial planning apps.

10. The Zebra

Headquarters: Austin, TX
Founded: 2012
Specialty: Insurance comparison and brokerage (auto/home)

While not a traditional insurer, The Zebra acts as a comparison engine and licensed insurance agency. Over the last year, it has begun offering policies directly and white-labeling insurance products through its own brand.

The Zebra’s massive growth in premium volume is due to its data-driven lead generation and marketing automation strategies.

11. Elevance Health (formerly Anthem)

Headquarters: Indianapolis, Indiana
Founded: Elevance Health was founded in 1944 as the Blue Cross Association of Indiana.

Specialty: Health insurance

Elevance Health is America’s largest for‑profit managed care insurer. It oversees multiple Blue Cross Blue Shield affiliates and served tens of millions in 2024. 

While premium growth is somewhat pressured by healthcare cost inflation, Elevance remains a top growth driver in commercial and individual ACA-related lines. Their specialty lies in medical, dental, behavioral health, and disability policies.

12. Goosehead Insurance

Headquarters: Westlake, Texas
Founded: 2003
Specialty: Home and auto insurance

Goosehead grew earnings by 182% in a recent quarter, and its stock took off as a top performer. Goosehead is a tech‑enabled brokerage specializing in homeowners, auto, and umbrella policies across multiple U.S. markets. 

Their digital quote platform and strong broker support accelerated premium growth. They represent fastest‑growing brokerage platforms tied to commission‑based premiums.

13. Progressive Corporation

Headquarters: Mayfield, Ohio
Founded: 1937
Specialty: Auto insurance

Progressive is widely recognized for rapid premium increases and expanding market share. Their net premiums rose approximately 14‑26% year‑on‑year in recent reporting periods. 

Moreover, Progressive doubled its advertising spend in 2024 to capture market share. They specialize in auto insurance, especially high‑risk and usage‑based policies. Their growth is tech‑driven, with customer tools like Snapshot and digital claims. Indeed, it remains one of the fastest‑growing P&C personal lines insurers in the U.S.

14. Allstate Corporation

Headquarters: Northfield Township, Illinois
Founded: 1931
Specialty: Auto and homeowners insurance

Allstate posted net written premium growth of around 10.8% recently, climbing in AM Best rankings. Allstate has seen double‑digit increases in both auto and homeowners lines. 

They specialize in personal lines: auto, home, umbrella, and small business coverage. With aggressive pricing and broad geographic reach, Allstate continues to expand rapidly across the U.S.

15. W. R. Berkley Corporation

Headquarters: Greenwich, Connecticut
Founded: 1967
Specialty: Property & Casualty insurance

W. R. Berkley reported net written premiums up 7.2% in Q2 2025, reaching $3.35 billion. Their underwriting results are strong, reflecting disciplined pricing and investment income gains. Berkley is known for its specialty lines, commercial property, casualty, excess and surplus lines. It is growing quickly in niche markets, including global casualty and E&S coverage.

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Why These Insurance Companies in the United States Are Growing So Fast

Several factors are behind their rapid rise:

• Digital-first operations: Most of these companies eliminate paperwork and wait times.
• Customer-focused innovation: Fast claims, transparent pricing, and AI tools increase satisfaction.
• Targeted niche strategies: Companies like Kin and Ethos serve underrepresented groups.
• Aggressive marketing: Using influencers, social media, and embedded insurance platforms.
• M&A activity: Platforms like Acrisure and One80 expanded via acquisitions to scale premium volume rapidly.
• Specialty underwriting: Firms like Berkley and Kin focus on niche lines with higher margins.

Final Thoughts

The insurance industry in the United States is changing rapidly, and these 10 fastest-growing insurance companies by premiums in 2025 prove that innovation, data, and customer experience are the way forward. Whether you’re a policyholder, investor, or insurance agent, keeping an eye on these players can help you stay ahead in this evolving market.

If you’re shopping for a policy, be sure to compare features, not just prices. Many of these companies offer digital tools that make your life easier while still delivering comprehensive protection.