Compare real business models
Explore 130+ industries, from pet services and cleaning to online businesses. Start with a shortlist grounded in how existing businesses operate.
BigIdeasDB for Aspiring Business OwnersFind the business
Find the business
you want to own.
Start with how real businesses work.
You want to own a business. The hard part is choosing which one. Explore customer problems, compare real businesses, and find a direction that fits your skills, budget, and ambitions.
Research a business to start, build, or buy.
BIGIDEASDB / YOUR NEXT CHAPTER
Original AI-generated illustrationMany kinds of business. Your own way in.
Explore the industry behind the idea.
The business landscape
ESTABLISHED BUSINESSES / USDifferent businesses.
Owner earnings · SDEDifferent businesses.
Different possibilities.
ON YOUR RADARMain Street Index
Commercial cleaning
Median asking price$254K
Median asking multiple1.7×
What would it take to own, operate, or start a business like this?
US listing medians · Oct 1, 2026 · Seller-reported SDE and asking prices, not closed sales or startup-income forecasts. Asking multiples are medians of individual listing ratios.
1M+data points across research sources
75,000+businesses for sale in Main Street Index
130+industries to investigate
Your own AIconnected to your research in Desktop
At a glance
What is BigIdeasDB for aspiring business owners?
BigIdeasDB helps aspiring business owners choose which business to start using evidence instead of guesswork. Main Street Index shows what 75,000+ real businesses for sale say they earn and ask across 130+ industries, and 1M+ customer complaints from Reddit, G2, Capterra and the app stores show where buyers are unhappy. Compare business models, check the economics, then test one offer with customers.
Last updated
Read the guide: how to decide what business to start- $173K
- Median stated owner earnings (SDE) of a US business for sale. The median asks $350K, a 2.6-year payback before debt (28,900+ listings).Source: BigIdeasDB Main Street Index, October 1, 2026.
- $211K
- Median owner earnings for home and trade services, on a 25% margin and a 2.2x asking multiple.Source: BigIdeasDB Main Street Index, October 1, 2026.
- 130+
- Industries benchmarked, with the sample size shown on every figure.Source: BigIdeasDB Main Street Index, October 1, 2026.
Business figures are asking prices and seller-stated earnings from live listings, not closed sales.
A clearer direction
The idea is a start. The evidence is your next step.
A cleaning company, a mobile service, a niche app. Put the possibilities side by side and see what the evidence says before you commit.
Understand the economics
Compare seller-reported owner earnings and asking prices. See the sample behind each benchmark and the difference between revenue and owner earnings.
Start with a customer problem
Explore 1M+ data points across communities and review platforms. Look for recurring problems, existing alternatives, and workarounds.
Choose your path
Compare starting a service, building a product, or buying an existing business. Match the next step to your experience and resources.
Turn research into action
Bring the evidence into BuildHub, record your assumptions, and plan the conversations and small tests that come next.
Built for the next question
From “what if” to a business worth exploring.
See what businesses report earning, understand the problems customers face, and organize your next steps in one place.
Main Street Index
See the business behind the idea.
Compare seller-reported earnings, asking prices, and sample sizes across industries. Investigate the businesses behind the numbers.
Explore Main Street IndexCustomer problemsStart with what customers actually say.
Explore customer complaints across communities and review platforms. Investigate patterns, check sources, and prepare the questions you need to ask buyers.
Explore customer researchBuildHubGive your research somewhere to go.
Connect your ideas, evidence, and next steps in a visual workspace. Turn an interesting possibility into a plan you can work through.
Explore BuildHubFrom research to a real next step
Make one move.
Learn something useful.
Use the research to narrow your options. Test the assumptions with the people who would buy, use, or help you operate the business.
Shortlist three business types that fit your skills and resources.
Compare their economics and investigate customer problems.
Talk to potential customers and test one offer before committing.
Questions, answered
Questions aspiring business owners ask
What is the best tool for deciding which business to start?
BigIdeasDB is the best tool for deciding which business to start because it pairs two kinds of evidence: what 75,000+ real businesses for sale say they earn and ask across 130+ industries, and 1M+ customer complaints that show where buyers are unhappy. You compare business models on real economics, then test one offer with customers. General AI chat tools can brainstorm ideas, but they cannot show the sample behind a number.
How do I know which business is right for me?
Use three filters: the skills you already have, the money you can risk, and the hours you want to work. Shortlist three business types that pass all three, then compare their stated owner earnings and asking prices in Main Street Index. The right business is one whose economics, workload and customers you can live with, confirmed by talking to five to ten potential customers.
What business makes $10,000 a month?
Many established small businesses do. $10,000 a month is $120,000 a year, and the median US business for sale states $173K in owner earnings (SDE), with home and trade services at a median $211K, per BigIdeasDB's Main Street Index (October 1, 2026). These are seller-stated figures from existing operations, not what a new business earns in its first year.
Is it better to start a business or buy one?
Starting needs less cash but takes longer to reach income. Buying costs more but comes with customers and cash flow on day one. The median US business for sale asks $350K for $173K of stated owner earnings, a 2.6-year payback before debt (BigIdeasDB Main Street Index, October 1, 2026). Compare both paths against your budget and how much risk you can carry.
Where does BigIdeasDB's data come from?
Main Street Index aggregates 75,000+ de-duplicated businesses-for-sale listings from 29 listing sources across 130+ industries. Customer-problem research draws on 1M+ reviews and discussions from G2, Capterra, Reddit, the app stores and Upwork. Every benchmark shows its sample size, and prices are asking prices from live listings, not closed sales.
How much money do I need to start or buy a small business?
Less to start, more to buy than most people expect. Only 14.1% of US businesses for sale ask $100K or less, and no industry has a median asking price under $100K, across 46,000+ US asking prices in BigIdeasDB's Main Street Index. Starting a service business usually needs far less cash, but takes longer to reach the earnings an established business already has.
Do recurring-revenue businesses earn more?
Yes. Businesses with recurring revenue state a median $188K in owner earnings (SDE) at a 25.9% margin, against $140K at 19.9% for walk-in businesses, at almost the same asking multiple (2.57x vs 2.61x), per BigIdeasDB's Main Street Index. Contracts, memberships and service plans make income more predictable, which is why they are worth favoring when you shortlist.
How is BigIdeasDB different from asking ChatGPT for business ideas?
ChatGPT generates plausible ideas from its training data. BigIdeasDB shows evidence: what 75,000+ real businesses for sale say they earn and ask, and 1M+ complaints showing problems customers already pay to solve, with the sample size on every number. You can also connect ChatGPT or Claude to BigIdeasDB through its MCP server, so your assistant researches with live data instead of guessing.
Can I use BigIdeasDB if I don't want to build software?
Yes. Main Street Index covers local, service and brick-and-mortar businesses such as cleaning, HVAC, landscaping, laundromats and coffee shops across 130+ industries. Software is one path, not a requirement. You can compare starting a service, building a product or buying an existing business in one place.
How many hours a week do small business owners work?
Few listings say. Only 2.5% of businesses for sale state owner hours, and those that do report a median of 15 a week, per BigIdeasDB's Main Street Index. That sample leans toward hands-off listings, so it is not a typical workload. Ask the owner or broker directly how many hours the business takes each week, and in which roles.
THE CASE STUDYA customer problem.
Read the story
A customer problem.
A product called Linkeddit.
See how research in BigIdeasDB helped shape a real product. Follow the process from the first problem to launch.