How to find your first 100 customers using local business data
A practical plan for founders to find their first 100 customers with public local business data, a narrow target list and honest, personal cold email.
Signalsant Team
8 min read
On this page
Your first 100 customers rarely arrive on their own. Before you have reviews, referrals or search traffic, you have to go and find them. If you sell to small and local businesses, such as clinics, contractors, salons, agencies or restaurants, there is a useful shortcut: these businesses publish a lot about themselves in public. Their maps listings, websites, reviews and domain records tell you who they are, where they are and, sometimes, what they might need.
This guide shows you how to turn that public data into a short, well-chosen list, and how to contact it in a way that is personal, honest and easy to say no to.
Why local business data works for your first 100 customers
Early on, you don't need a huge market. You need a group of businesses that share the same problem and that you can reach directly. Local business data helps because:
- It is specific. A listing tells you the category, the city, the rating and how many reviews a business has.
- It is current. Businesses keep their maps listings and websites up to date because their own customers use them.
- It lets you compare. You can see which businesses in the same category look established and which look like they are struggling.
- It gives you something real to say. "I noticed you have a strong rating but no website listed" is a better opening than a generic pitch.
The goal is not to email everyone. It is to find the few hundred businesses most likely to care, and to talk to them like a person.
Step 1: Describe one customer in one sentence
Before you search for anything, write down who you are looking for. Keep it narrow enough that you could picture the owner. For example:
- "Independent dental clinics in one city that have plenty of reviews but an out-of-date website."
- "Roofing contractors in one state with a website and a published email address."
- "Newly incorporated companies in one Indian state that may need accounting help."
A narrow description does three things. It tells you where to search, it shapes what you write, and it makes replies easier to learn from, because everyone on the list has something in common.
If you are not sure which segment to start with, pick the one you understand best, or the one where you already have a contact or two. You can widen it later.
Step 2: Decide which signals suggest a need
Public data won't tell you who is ready to buy. It can, however, point to businesses where your offer is more likely to be relevant. Think about which of these signals relate to what you sell:
- Category and location. The basics: what kind of business, and where.
- Rating and number of reviews. A business with many reviews is probably active and established. A low rating might mean it would value help with reputation or service.
- Website and contact details. Whether a business has a website, an email address and a phone number, and which social profiles it links to.
- Domain dates. When a website's domain was registered and when it expires.
- New incorporations. In India, the official company register shows when a company was incorporated, its paid-up capital, industry and state, which helps if you serve new businesses.
- Reviews from other sites. What customers or employees say on review sites can hint at what a business is good at, and where it struggles.
Pick one or two signals that genuinely connect to your product. If you sell website design, "has a good rating but a weak web presence" is a meaningful signal. If you sell bookkeeping, "incorporated recently" might be.
Step 3: Build the list, then trim it by hand
Volume is not the point at this stage. A list of a few hundred well-matched businesses is usually more useful than thousands of loosely matched ones, because you can actually read through it.
Once you have a list, spend some time on it:
- Open a sample of the businesses and check that they really match your description.
- Remove anything that clearly doesn't fit, such as chains, closed businesses or the wrong category.
- Note any patterns. If half the list has no email address, you may need a different segment or a different approach.
This manual step feels slow, but it is where you learn the market. It also stops you from sending a message that obviously doesn't apply.
Step by step with Signalsant
Signalsant is built around this loop: find local businesses, let it fill in their details, group the ones you want, then email them from your own mailbox. Here is how the steps fit together.
1. Find businesses with a Deep Search
A Deep Search looks up a type of business in a place on Google Maps, page by page. Every business it finds becomes a company in Signalsant.
- Open Companies → Deep search and click New deep search.
- Enter a short Query, such as "dental clinics".
- Choose the Country and State, and optionally a City.
- Set Max Pages (from 1 to 50), then click Start search.
Start with one city to test your query. Without a city, the search runs for every city in the state, which can be large. See Run a Deep Search for the details.
If you serve new companies in India, you can also browse Companies → Corporations, which covers the MCA register and includes an Incorporated in the last 30 days preset.
2. Let enrichment fill in the details
You don't need to do anything here. Enrichment is automatic, and there is no button to press. Signalsant adds details from the Google Maps listing, visits the company's website for email addresses, phone numbers and social profiles, looks up domain records, and works out a Company Index score from 300 to 900.
Emails come from the company's own website, so they can appear some time after a search finishes. A business without a website only gets what its listing shows. How enrichment works explains each source.
3. Narrow down and group the companies you want
On Companies, describe what you want in plain words, for example "dental clinics in Leeds with an email" or "plumbers in Manchester rated under 3". Signalsant turns it into filter chips you can remove or adjust.
Then put your shortlist into a group:
- tick the companies and click Add to group; or
- open a finished Deep Search and choose Create group from the ⋯ menu.
A group holds up to 1,000 companies. The group page shows how many have a sendable email, which is a quick check before you write anything. See Create a company group.
4. Send a campaign from your own mailbox
Campaigns send email only, from a Gmail, Microsoft 365 or Outlook.com, or SMTP mailbox that you connect. Open Campaigns → New campaign and work through four steps:
- Audience: tick your group.
- Content: choose One email, By category, or AI-written from a short Brief for the AI.
- Sending: pick the mailbox, set Companies a day and your sending hours.
- Review & launch: fix anything flagged, use Send me a test when it is available, then Launch campaign.
With a new mailbox, start at 25 to 50 companies a day and raise the pace slowly over a few weeks. The Quick start guide walks through the whole route.
Write emails people are happy to receive
Your first emails matter more than your list size. A few principles:
- Lead with them, not you. Mention something specific and true about their business, such as their category, city or rating.
- Make one small ask. "Would a 15-minute call be useful?" is easier to answer than a long pitch.
- Keep it plain. Short, text-like emails read as personal. Keep images and links to a minimum.
- Use variables carefully. Fill in details like
{{company.name}}, and give anything that might be empty a fallback, such as{{contact.first_name | "there"}}. - Review anything AI writes. AI drafts are a starting point. Read them for accuracy and tone before they go out. For AI-written campaigns, open a card on the Schedule tab and use Write draft to read an email first.
Be honest and easy to say no to
This is general guidance, not legal advice. Rules on business email differ by country, for example CAN-SPAM in the US and GDPR and PECR in the UK and EU, so check what applies to you and to the people you contact. As a baseline:
- Only contact businesses where your offer is genuinely relevant.
- Use your real name and company, and say who you are clearly.
- Include your own opt-out line, such as "Reply 'no thanks' and I won't contact you again". Signalsant does not add an unsubscribe link for you.
- Honour every opt-out promptly.
Handle replies yourself
Signalsant tracks delivery, meaning whether each email was sent or failed. It doesn't track opens, clicks or replies. Replies arrive in your own mailbox, as they would for any email you send.
That suits this stage. Read every reply yourself, answer quickly, and keep a simple note of what people say: who was interested, who wasn't, and why. Those notes are worth more than any open rate, because they tell you whether your segment and your message are right.
From your first 10 customers to 100
Getting to 100 is a series of small loops, not one big push:
- Run a small batch. One segment, one city, one message.
- Read the replies. Look for the words people use to describe their problem.
- Adjust one thing. Change the segment, the signal or the message, not all three at once.
- Repeat with the next city or category. Once something works, a new Deep Search in a neighbouring area is often the easiest next step.
- Ask happy customers who else they know. Referrals from your first customers often come from the same local networks.
You might set yourself a goal such as "10x the conversations we were having before". Treat that as a target to aim at, not a promise. What matters is that each batch teaches you something.
Mistakes to avoid
- Searching too broadly. "Businesses in a whole state" produces a list you can't read through or write for.
- Skipping the trim. Sending to businesses that obviously don't fit wastes your mailbox's reputation and their time.
- Sending too much, too soon. A sudden jump in volume from a new mailbox is a quick route to the spam folder.
- Running the same companies through several campaigns. Campaigns don't check each other, so keep each list separate.
- Forgetting the opt-out line. Add it to every template before you launch.
Start building your list
Signalsant is free during early access. Pick one segment, run one Deep Search, and send your first small batch this week. Create your free account.
- first customers
- local business data
- cold email

