How to find business contact information: the complete playbook

To find someone’s business contact information, start with the right person and their current company, then get two things: a verified work email and a phone number that reaches them directly. An email finder and a mobile finder do most of that work. Company websites, email formats and a call to the front desk cover the rest.

This playbook shows how to find contact information for any B2B prospect: every method, when to use it, how to check that what you found still works, and the legal basics for email and calls in the US.

How do you find someone’s business contact information?

You find business contact information by identifying the right person, confirming where they work today, and then looking up their work email and phone number with a contact-finding tool or by hand. The email comes from the person’s name plus the company’s email domain. The mobile or direct dial usually needs a tool, because companies rarely publish it.

Whatever the source, verify before you use it. An email that bounces hurts your sending domain, and a number that rings at a former employer wastes a call and a first impression.

What business contact information do you actually need?

A usable business contact record has seven fields. Each one does a job, and each one comes from a different place.

Field	Why it matters	Where it comes from
Full name and current title	Picks the right person and makes the message relevant	Company website, people search
Company and email domain	The key to every work email	Company website, a press release
Work email with a status	The channel you can scale; the status says if it is safe to send	Email finder, or format plus verifier
Mobile number	Reaches the person, not a gatekeeper	Mobile finder
Direct dial	A desk line: often voicemail or an assistant	Email signatures, mobile finder
Main line	The switchboard: your last resort	Company website
Location	Time zone, calling hours and which law applies	People search, company website

The phone fields are not interchangeable. A mobile goes to the person wherever they are; a direct dial goes to a desk; a main line goes to reception. Read direct dial vs mobile vs switchboard before you plan a calling block.

How to find business contacts: start with the right people

To find business contacts, start with a list of the right people, not with email addresses. A perfect email for the wrong person books no meetings.

There are three ways to build that list:

• Company websites, for a short list of named accounts. Team, leadership and newsroom pages give you names and exact titles. Press releases about funding or a new product name the people in charge.
• Buying signals, for timing. A new executive, a funding round or a hiring push gives you a reason to reach out now. Our guide shows how to find the decision maker at any company.
• A people search, for a whole market. Describe the buyer in one sentence and see how many people match before you spend anything.

In Scalelist’s Lead Finder, you type a sentence such as “Heads of Operations at US manufacturers with 200 to 1,000 employees”. Scalelist shows what it understood (title, industry, location, company size) and how many people match, then you reveal verified emails and mobiles only for the people you keep.

For the full method, from ideal customer to finished list, see how to build a prospect list step by step.

How to find someone’s work email

A work email is the easiest contact detail to find, because almost every company builds addresses from names in one fixed format. You need the person’s full name and the company’s email domain; everything else is a way to get those two facts or to check the result.

The fastest route is an email finder: enter the name and domain, and it returns the address with a status. Scalelist’s Email Finder charges 1 credit when an email is found, Valid or Risky, and nothing when it is not.

Without a tool, you have seven more options:

• Copy the company’s email format from one known address.
• Search the company’s domain for known addresses.
• Read the company’s team pages, press releases and careers pages.
• Search Google for “@company.com” to surface pages that show addresses.
• Check speaker pages, association directories and public filings.
• Reverse-look-up a phone number you already have.
• Ask the front desk or a role inbox.

Each method, with search strings, a script for the front desk and a worked example, is in our guide to the 8 ways to find someone’s work email.

How to work out a company’s email format

A company email format is the rule that turns a name into an address, such as first.last@company.com or first initial plus last name. Most companies use one format for everyone, so one real address, from a press release or a contact page, tells you everyone else’s.

For Dana Whitfield at Northwind Fabrication (northwindfab.com), the usual candidates are dana.whitfield@, dwhitfield@, dana@, danawhitfield@ and danaw@. Once a known address shows the pattern, you apply it and verify.

Two tools make this faster. Our company email format guide covers the common patterns and the edge cases (middle names, hyphens, duplicates). An email permutator generates every variation of a name at a domain, so you can verify the candidates in one pass instead of typing each one.

How to find every email at a company domain

A domain search returns the email addresses already known at one company. It answers two questions at once: what format the company uses, and who else you could contact there.

Use it when you are working an account rather than a person:

• Confirm a format before you apply it to your prospect.
• Map a buying group: operations, finance and IT often all weigh in on one purchase.
• Find the owner of a role inbox when only sales@ or info@ is public.

In Scalelist, the API lists known emails at a domain (POST /api/v1/email/domain). Our guide shows how to find every email at a company domain, with or without a tool, and how to turn the results into a short list of the right people.

How to find emails for a whole list

When you have more than a handful of names, upload them once instead of searching one by one. A bulk email finder takes a file with first name, last name and company name or website, and returns an email and a status for every row.

Clean the file first. Write each company one way (“Northwind Fabrication”, not “Northwind Fab. Inc.” in one row and “NWF” in the next), fix capitalization, and add the website where you have it. A clean file gets more matches.

The cost math is simple when misses are free. In Scalelist, a 500-row file where 400 emails come back uses 400 credits; the 100 rows with no email cost nothing. The full walkthrough, from CSV to export or CRM push, is in our bulk email finder guide.

How to find an email from a phone number

If you already have someone’s phone number, from an email signature, a business card or an event badge, a reverse lookup can return the email tied to it. It works best on mobiles and direct dials, because a main line is shared by the whole company.

Treat the result like any other lead: confirm the person still works at that company, then verify the address. Here is how an email lookup by phone number works and when it is worth trying.

How to find a mobile number or direct dial

A mobile number is the hardest contact detail to find, because it is almost never published. Company websites list main lines; email signatures sometimes show a direct dial. For a mobile, a contact-finding tool is the practical route.

Tools differ far more than their marketing suggests, and a tool that is strong on email can be weak on phones. In our benchmark, Findymail found an email for 87% of the same North American founder list but a phone number for 32%. Prospeo went the other way: 42% email, 75% phone.

So test the channel you actually use. If your team calls, measure phone coverage on 100 of your own contacts before you buy; here is how to test a data provider before you buy. The full results by region are on our B2B data provider comparison.

For the methods, including what is legal where, read how to find direct dial phone numbers and how to find a prospect’s mobile number legally. When all you need is the switchboard, here is how to find a company’s main phone line.

How to verify contact information before you use it

Verifying contact information means checking that an email reaches a real mailbox and that the person still holds the job you think they hold. Do both before a campaign, not after the bounces.

For email, a verifier checks the syntax, confirms the domain accepts mail, asks the server whether the mailbox exists without sending anything, and detects catch-all servers. Scalelist labels each result:

• Valid: found, and the mailbox confirmed. Send from your main domain.
• Risky: found, but the server accepts every address, so the mailbox cannot be confirmed. About 20 to 30% of Risky emails are deliverable (Scalelist help center); send them in small batches from a secondary domain.
• Not found: no address found. Try a manual method or move on.

Our guides explain how to verify an email address without sending and how to handle catch-all emails. To check a list you already have, use the Scalelist Email Verifier.

For phones, the check is simpler: confirm the current employer and title before you dial, and log wrong numbers on the first call so nobody dials them twice.

How to keep contact data fresh

Contact data goes stale because people change jobs, and they change jobs often. Plan to re-check it, not to buy it once.

The US Bureau of Labor Statistics measured this in January 2026. The median worker had been with their employer 4.1 years, and 20.6% had been there a year or less. Tenure also varies by role: a median of 3.3 years in sales occupations against 6.1 years in management (BLS, Employee Tenure in 2026). A list of sales reps goes stale faster than a list of executives.

Three habits keep a list usable:

• Verify before every campaign, not once when the list is built.
• Check the current employer before you call, especially for contacts older than a quarter.
• Treat a job change as a reason to reach out: a past champion at a new company is a warm lead. See why contact data goes stale and how fast.

Is it legal to find and use business contact information?

Yes, finding and using business contact information for B2B outreach is generally legal in the US, but the rules depend on the channel. Email, manual calls and automated calls each follow different laws. This is general information, not legal advice.

Email. The CAN-SPAM Act covers business email: the FTC says “the law makes no exception for business-to-business email.” Use honest headers and subject lines, identify the message as an ad, include a physical postal address and honor opt-outs within 10 business days. Each email in violation can cost up to 53,088 USD (FTC CAN-SPAM guide).

Calls. Under the Telephone Consumer Protection Act (TCPA), calls to a mobile made with an autodialer or an artificial or prerecorded voice need prior express consent, and written consent for telemarketing (47 U.S.C. 227). The FCC confirmed in 2024 that AI-generated voices count (FCC 24-17). A person dialing by hand is not caught by that rule.

Do Not Call. The FTC says “most phone calls to a business made with the intent to solicit sales from that business are exempt from the Do Not Call provisions” (FTC). A personal mobile that belongs to a business buyer is the grey area, because Do Not Call protection follows the number, not the purpose of the call.

EU and UK contacts. The GDPR applies to business contact data. Most B2B outreach relies on legitimate interests, which means you identify your purpose, show the processing is necessary and balance it against the person’s interests (ICO).

Go deeper with our guides to B2B cold calling laws and GDPR and legitimate interest for B2B data.

Manual research vs a contact-finding tool

Manual research is free and precise for a few named accounts; a contact-finding tool is faster and the only practical way to get mobiles at volume. Most teams use both.

Method	Finds the email	Finds the mobile	Verified	Best for
Company website	Sometimes	Rarely	No	A few named accounts
Email format + verifier	Yes, as a guess	No	After you verify	One person, no tool
Google operators	Sometimes	Rarely	No	Hard-to-find people
Front desk or role inbox	Sometimes	No	No	When nothing else works
Email finder	Yes	No	Yes, with a status	One person or a list
Mobile finder	No	Yes	Found or not found	Anyone you will call
People search (Lead Finder)	Yes	Yes	Yes, with a status	A whole market

When you compare tools, look for five things:

• Charge on success. A miss should cost nothing.
• A status on every email, so you know what is safe to send.
• Mobiles, not just switchboards, with coverage published by region.
• Delivery where you work: your CRM, your sequencer, a CSV.
• Compliance paperwork: a data processing agreement and a sub-processor list.

A 6-step workflow to find contact information

This workflow turns “we need to reach these people” into a verified list your team can email and call the same week. Each step names what it costs in Scalelist.

1. Define who you want in one sentence: title, industry, company size, location.
2. Build and size the list of people. Counting matches is free; each lead you keep costs 1 credit.
3. Find the work emails. 1 credit per email found.
4. Add mobiles for the people you will call. 20 credits per mobile found.
5. Verify and route. Valid to your main domain, Risky to a secondary domain, Not found to a manual method.
6. Send to your CRM or sequencer, and re-verify before every new campaign.

Misses cost nothing at every step. A fully enriched contact (lead, email and mobile) costs at most 22 credits, so 100 of them cost at most 2,200 credits.

How Scalelist helps you find business contact information

Scalelist, an AI Lead Finder, turns a one-sentence description of your buyer into a list of people with verified work emails and mobile numbers. Scalelist is where you get the mobile number, not just the email.

• Lead Finder: describe the people, see what Scalelist understood and how many match, then reveal contacts. 1 credit per lead found.
• Email Finder: name plus domain, or a CSV. 1 credit per email found, Valid or Risky.
• Mobile Finder: 20 credits per mobile found, 0 when none is found. See the Scalelist Mobile Finder.
• Delivery: export CSV or Excel, push to HubSpot, or send to lemlist, Instantly, Smartlead, Woodpecker or Saleshandy.

Scalelist finds and verifies contact details on demand instead of reselling pre-compiled lists. It operates under the GDPR and Singapore’s PDPA, with a Data Processing Agreement, Standard Contractual Clauses and a published sub-processor list. Plans start at 29 USD a month for 500 credits (Scalelist pricing), and new accounts get 20 free credits, no credit card required.

FAQ

What is business contact information?

Business contact information is the set of details you need to reach someone in their professional role: full name, current title, company, work email and a work phone number, ideally a mobile or direct dial. It excludes personal details such as a home address. For outreach, add a verification status on the email and the person’s location for time zones.

How do I find contact information for someone at a company?

Start with the person’s full name and the company’s website domain. Use an email finder to get the work email with a status, or find the company’s email format from one known address and verify your guess. For a phone number, use a mobile finder, because mobiles are rarely published. Confirm the person still works there first.

Can I find contact information without paying for a tool?

Yes, for emails. Company team pages, press releases, Google searches for “@company.com” and the company’s email format will often give you a work email, which you then check with a verifier. Mobile numbers are the exception: they are rarely published, so finding them by hand is slow and usually fails.

How do I find the decision maker’s contact information?

First identify the decision maker: check the leadership page, recent press releases and new executive hires, or describe the role in a people search. Then find their work email with an email finder and their mobile with a mobile finder. For big purchases, map two or three people in the buying group, not just one.

How can I tell if contact information is still current?

Verify the email right before you send: a Valid status means the mailbox exists today. Then confirm the person’s current employer and title, because a mailbox can outlive the job. In January 2026, 20.6% of US workers had been with their employer for a year or less (BLS), so re-check anything older than a quarter.

Is it legal to use business contact information for cold outreach?

Generally yes in the US, with rules per channel. CAN-SPAM applies to business email, including a postal address and opt-outs honored within 10 business days. Autodialed or prerecorded calls to mobiles need prior express consent under the TCPA, while most calls to businesses are exempt from Do Not Call rules. This is not legal advice.

What is the difference between a direct dial and a mobile number?

A direct dial is a desk line that rings one person at the office, often forwarding to voicemail or an assistant. A mobile number rings the person’s own phone wherever they are. Both skip the switchboard, but mobiles reach people more directly, and in the US they also carry extra rules for automated calls under the TCPA.

How much does it cost to find contact information with Scalelist?

1 credit per lead found, 1 per email found and 20 per mobile found; anything not found costs nothing. A fully enriched contact costs at most 22 credits. Plans start at 29 USD a month for 500 credits, and new accounts get 20 free credits with no credit card required.

Sources

• US Bureau of Labor Statistics: Employee Tenure in 2026 (PDF)
• FTC: CAN-SPAM Act, a compliance guide for business
• 47 U.S.C. 227, restrictions on the use of telephone equipment (Cornell LII)
• 47 CFR 64.1200, delivery restrictions (Cornell LII)
• FCC Declaratory Ruling FCC 24-17 on AI-generated voices (PDF)
• FTC: Q&A for telemarketers and sellers about the DNC provisions in the TSR
• ICO: When can we rely on legitimate interests?
• Scalelist help center: Can we use the risky emails found by Scalelist?