Top Industries Dominated by Small Businesses: Surprising Leaders and Insider Insights Jul, 12 2025

Picture the US economy as a wild jungle, not perfectly pruned, but teeming with scrappy players, hungry upstarts, and surprising leaders. Small businesses—those run by hustlers, dreamers, and risk-takers—make up a whopping 99.9% of all US firms. But if you ask people which industry is packed most densely with these small outfits, you’ll almost always get the wrong answer. It isn’t manufacturing. Nor is it high-flying tech. The truth is way more down-to-earth and fascinating.

The Biggest Hub: Why Services Rule the Small Business Scene

If you peered behind Main Street’s curtains, you’d find that the service industry absolutely dominates when it comes to the number of small businesses. Think about your daily routines—getting a haircut, grabbing coffee, calling a plumber, or sending the kids to daycare. The US Census Bureau counts over five million service-based businesses in the nation, ranging from barber shops and child care centers to digital marketing freelancers and legal consultants.

The services sector is huge because the barriers to entry are often lower compared to manufacturing or retail. You don’t always need big machinery or inventory stockpiles to get started. Plenty of businesses pop up with little more than industry know-how, a license, and some sweat equity. Just ask any local dog walker with a solid Instagram following or that friend who finally quit the 9-to-5 to freelance from their kitchen table.

Some eye-opening numbers: According to the US Small Business Administration, over 50% of all small businesses fall under the “professional, scientific, and technical services,” “health care and social assistance,” and “other services (except public administration)” groupings. And since 2020, there’s been a steady surge in home-based service businesses, mainly because remote life is now the norm and technology made side gigs scalable. When everyone needed haircuts in lockdown, mobile stylists thrived. Pet adoption rates soared during 2020—dog grooming and boarding exploded alongside that trend. Even tutoring, personal coaching, and cleaning services saw double-digit growth after the pandemic, and the numbers keep climbing. In other words, services are where small businesses feel right at home—quick to adapt, able to fill micro-niches, and often shielded from the kind of scale-or-die pressure that crushes startups in some other industries.

What draws entrepreneurs here? Flexibility, low start-up costs, and the chance to serve their own neighborhoods or even clients worldwide. Some survive on word-of-mouth, while others use platforms like Upwork or Fiverr to cast a global net. According to fresh SBA data, nearly 60% of new service-based businesses survive five years or longer—a rate that outpaces restaurants or retail shops by a considerable margin. If you’ve got a talent, you can likely sell it. That’s the service sector’s real engine.

Surprising Contenders: Retail and Construction—Not Far Behind

Surprising Contenders: Retail and Construction—Not Far Behind

Services may take the top spot, but retail trade and construction deserve a close look—they’re not as far behind as you might think. Walk down any busy strip and you’ll find boutique clothing shops, pop-up toy stores, secondhand bookstores, and fast-casual restaurants, all counting as small businesses. In total, retail trade makes up over 10% of all US small employers, according to the latest 2024 Census release. Franchises can skew the perception here—yes, some businesses operate under bigger brands, but they’re still independently owned and classified as small businesses.

Retail’s diversity stands out: beyond brick-and-mortar shops, e-commerce upstarts now drive a significant chunk of growth. Platforms like Shopify and Etsy let solo sellers or tiny teams reach shoppers worldwide with little upfront investment. The crazy part? About two-thirds of retail businesses have fewer than five employees. The majority are family-run, owner-operated, and juggle logistics, marketing, and sales on their own. There’s endless hustle here—holiday seasons are a make-or-break sprint while July can be eerily slow. But that’s the challenge and the charm for retail entrepreneurs.

Construction, meanwhile, is the classic “bootstrapped American Dream” arena. Look at the numbers: According to the National Association of Home Builders, nearly 80% of US construction companies have fewer than 10 employees. Most of these are specialty contractors: electricians, HVAC repair techs, plumbers, painters, remodelers. Their businesses hinge on local reputation and word-of-mouth. It’s a world where being visible in your town, showing up on time, and earning trust brings in work, not just clever Instagram ads. A great example is how construction businesses thrived during the 2021 home renovation boom when remote workers everywhere wanted new decks or office nooks. These outfits can get hit hard by economic downturns, but during steady times, they quietly rack up impressive revenue on small but steady jobs.

There’s another wild card in this mix: the explosion of solo “solopreneurs” running side gigs in the gig economy. Uber drivers, DoorDash couriers, Instacart shoppers—millions of these folks count as independent small businesses, too. It’s a gray area that blurs traditional lines, but if you include them, the service and retail trade numbers race even higher.

What Makes These Sectors So Small-Business Friendly?

What Makes These Sectors So Small-Business Friendly?

The magic really comes down to four factors: startup costs, regulations, flexibility, and community connection.

  • Startup costs: It’s much easier (and cheaper) to launch a pet-sitting company, cleaning service, or pop-up online shop than build a steel mill or open a car dealership. Startup costs for most small service and retail businesses range from $2,000 to $10,000—sometimes even less if you already own the tools or can run things from home.
  • Regulations: Many service-sector gigs dodge the suffocating regulations attached to high-tech medical devices or alcohol sales. That makes compliance and licensing way simpler (though you’ll still face permits, especially for food and childcare).
  • Flexibility: The gig economy is real. Service- and retail-based businesses can pivot quickly, whether that’s switching from in-person tutoring to Zoom, expanding product lines every season, or changing your marketing approach overnight. Quick pivots are baked into this game.
  • Community: Your local bakery, favorite corner repair shop, and the quirky vintage store all stay afloat because they’re part of your neighborhood’s fabric. Repeat customers matter here. According to a 2023 American Express “Shop Small” survey, nearly 75% of folks say locally owned businesses make their neighborhood unique. This loyalty keeps small businesses fighting fit, despite pressure from big chain stores.

But, let’s talk about the elephant in the room—competition. The same low barriers that make launching a business easy also let new competitors show up overnight. New hair salons, cafes, coaches, or e-commerce shops are always a threat. Survival here is about balancing relentless customer service, hard-won local reputation, and the courage to adapt without burning out.

If you dream of running your own show in this environment, aim for agility. Carve out a niche—maybe you’re the only vegan bakery in a five-mile radius or the dog trainer who comes to clients’ homes. Learn your customers’ names. Build an online presence; even tiny shops need great Google reviews and decent Instagram photos these days. Local partnerships matter—team up with neighboring businesses for events or cross-promotions.

Finally, never fall for the myth that size equals safety or that the best growth is the fastest. The best-run small businesses often stay intentionally small for flexibility and personal freedom. According to a fresh survey from the National Federation of Independent Business, three-quarters of owners say their chief priority is maintaining independence, not chasing massive scale or selling out. So, if owning your hours, building something meaningful, and making a mark on your neighborhood sounds good, don’t look to the Fortune 500 for inspiration. The real action—and the beating heart of American business—lives on Main Street, not Wall Street.