To find a business niche, start with your strengths: experience, contacts and interest.
Then research the market — demand, competitors, trends and size — and describe your target audience and their specific problem.
Test the niche cheaply with a minimum viable product, test ads and customer interviews.
Finally, check the unit economics: a niche is only good if each customer brings in more than it costs to acquire them.
A strong business idea is not enough to start successfully — you also need to choose the right market niche. The two terms are often used together, but they play different roles.
Below: how an idea differs from a niche, why choose a niche, five steps to find and test one, how to size the market, how to check a niche in Spain, and a checklist for a profitable niche.
What is a business idea and what is a niche
A business idea is the core concept the business is built around.
It answers the question “what are you going to do?” and stays broad, not tied to a specific audience or market segment.
For example: “start an online clothing store”, “offer food delivery”.
A niche is the idea’s specific place in the market. It defines to whom, why and how you will sell your product or service.
It narrows the idea to the problems or needs of a particular segment and shapes your competitive advantage and positioning. For example:
- instead of “an online clothing store” — “a sportswear store for women over 40 who are into fitness”;
- instead of “food delivery” — “healthy lunch delivery for working people who watch their diet”.
How they differ
| Business idea | Niche | |
|---|---|---|
| Level | Initial, general | The result of market and customer analysis |
| Audience | Not considered | A specific segment with a specific problem |
| Example | “Sell natural cosmetics” | “Natural cosmetics for teenagers with problem skin” |
In other words, a niche is the business idea put into practice, adapted to the needs of a specific market segment.
Why the difference matters
- A business idea inspires, but without a niche it stays vague.
- A niche turns the idea into an offer people want.
A failed approach: a café in a popular location with no distinctive concept — with high competition, nobody needs it.
A successful one: a vegan café in an area with strong demand for that cuisine and no similar places.
From Finetic’s practice: the ImSkipper marketplace in Montenegro sells not yacht charters but a berth on a yacht — like a hotel room, at 5–7 times less than chartering the whole boat.
The same “yacht charter” idea, placed in a different niche, opened up an audience that could not afford a whole boat.
Why choose a niche
A niche is a narrow market segment where your business solves specific problems for a particular audience in a unique, valuable way. Choosing a niche gives three advantages:
- Less competition. Focusing on a narrow segment lets you become the expert in it.
- Saved resources. You do not try to reach everyone; marketing and sales become targeted.
- Customer loyalty. People trust specialists who speak their language and understand their needs.
How to find and test a niche: 5 steps
Step 1. Assess your strengths and interests
Start with three questions:
- What are you good at? Your experience and skills become the basis of the niche.
- Where do you have the most contacts? Contacts speed up the launch.
- What do you enjoy doing? Passion makes growth easier.
Example: a trainer’s qualification and a passion for fitness can grow into online home workout courses for young mothers.
Step 2. Research the market
Before launching, make sure the idea is in demand:
- Demand. Google Trends shows how often people search for similar products or services. Study forums, social media and reviews.
- Competitors. Who already works in the niche, their strengths and weaknesses, what you could do better. SEMrush or Ahrefs show competitors’ traffic and promotion.
- Trends. Which directions are rising — for example, steady interest in eco-friendly products.
Example: the saturated toy market can be narrowed to educational games made of safe, eco-friendly materials for children under 5.
Step 3. Define your audience
The better you know your customers, the easier it is to offer exactly what they want. Build a customer profile:
- age, income, profession;
- the problems they want to solve;
- where they look for solutions and how to win their trust.
Example: the customer is an office worker who needs a quick, healthy lunch. A possible niche: delivery of lunch boxes made from natural ingredients.
Step 4. Test the idea
Before investing big money, make sure the niche works:
- Build an MVP — a simplified product or service. For example, before opening an online store, start selling through marketplaces or social media. More in Why an MVP is key to attracting investors.
- Run test ads with a minimal budget and analyse responses and conversions.
- Collect feedback — short interviews with potential customers: what they like, what to improve.
Step 5. Work out the niche’s economics
Demand is not yet profit. Test ads already give the first numbers: what it costs to acquire a customer and how much they pay.
Compare a customer’s revenue with the cost of acquiring them — that is unit economics — and estimate how many customers you need to cover fixed costs.
A niche where every customer loses money will not become profitable by growing.
How to size a niche: TAM, SAM, SOM
Investors and banks will ask how big the market is. It is calculated at three levels:
- TAM — the total market: everyone who could need the product × the annual ticket;
- SAM — the serviceable market: the part you can actually reach with your model, channels and geography;
- SOM — the obtainable share: what you expect to win in 3–5 years given competitors and resources.
An illustrative example: a service for cafés in Spain. If there were, say, 95,000 suitable venues and the subscription cost €49 a month, TAM would be about €56m a year.
If you only work in three coastal regions, SAM is smaller.
If you can realistically sign up, say, 2% of them in three years, that is SOM — and SOM is what goes into the financial model.
The venue count is illustrative; use real statistics for an actual calculation.
How to check a niche in Spain
- Market statistics. Spain’s National Statistics Institute, INE, publishes data on population, income and consumption, and its company directory DIRCE gives the number of companies by sector and region — the basis for TAM and SAM.
- Demand by region. In Google Trends, select Spain and a region: demand on the coast and in Madrid often differs greatly, and tourism niches are strongly seasonal.
- Competitors on the map. For an offline business, Google Maps shows competitor density in an area, their ratings and reviews — where customers are unhappy, there is a niche.
- Permits. Many activities need a municipal licence and some need sector permits. Check before renting premises, or the niche may turn out to be legally closed.
- Language and expat segments. Large foreign communities on the coast are niches of their own, with their own channels and needs.
If your niche is an existing business you are buying, checking the seller’s numbers is what our traspaso audit is for.
Checklist: how to choose a profitable niche
Score the niche 0–2 on each point. If the total is below 10 out of 18, refine the niche or change it.
| Criterion | What to check |
|---|---|
| Popularity and demand | People know the product or service and actively search for it — check search queries and social media interest |
| Profitability | Revenue per customer exceeds the cost of acquiring them |
| Short sales cycle | The purchase happens quickly — ideally within 1–2 days |
| Repeat purchases | Customers come back again and again |
| Presentability | The product is easy to show and its benefits easy to demonstrate |
| Affordable price | A competitive price without hurting the business |
| Geographic reach | For an offline business, serving the audience efficiently |
| Expertise | Product knowledge lets you create a unique offer |
| Interest | Passion for the subject raises motivation and the odds of success |
Example: a coffee shop with convenient fast delivery of coffee and pastries to office workers in the city centre.
Frequently asked questions
How is a niche different from a business idea?
An idea answers “what to do”; a niche answers “for whom, why and how”. A niche is an idea tied to a specific market segment and its problem, with a clear competitive advantage.
How can you test a niche without big investment?
With a minimal product (selling through a marketplace or social media), small-budget test ads and interviews with potential customers. Calculate straight away what a customer costs to acquire and how much they pay.
How do you know a niche is profitable?
If a customer’s revenue over their lifetime with you is well above the cost of acquiring them, and at a realistic sales volume the business covers its fixed costs. Unit economics shows this.
How do you size the market for a niche?
Through TAM, SAM and SOM: the whole market, the part you can reach and the share you can realistically win in 3–5 years. For Spain, INE and the DIRCE company directory provide the base data.
Isn’t a narrow niche too few customers?
A narrow niche lowers competition and marketing costs, but its size must be calculated. If SOM does not cover fixed costs, widen the niche or pick an adjacent one.
Key points about choosing a niche
- The ideal niche matches your interests and skills, meets real audience needs and is profitable.
- Five steps: strengths, market, audience, test, economics.
- Size the niche with TAM, SAM and SOM; SOM goes into the financial model.
- In Spain, check INE statistics, regional demand, competitors on the map and licences.
- Start with minimal investment, test demand and work out the economics before scaling.
The clothing, food, cosmetics, fitness and toy examples and the TAM calculation are illustrative. The ImSkipper example comes from a published Finetic case study.
