How to Build a Targeted List of Prospects: 12 Tools, the Legal Rules and What Accuracy Claims Mean

Cold email outreach is one of the best ways to find new customers. But before you can start emailing people, you need their email addresses.

So how do you build a targeted list of prospects for your cold email outreach campaign?

In this guide, I’ll walk you through the basics of cold email outreach and introduce you to some of my favorite tools for the job.

Creating Your Ideal Customer Profile

Before you can start building a targeted cold email outreach list, you need, you guessed it, a target.

You have to build your ideal customer profile (ICP) by considering the following (and more):

• Age/gender/etc. If you’re looking for individuals, you might consider demographic factors like age, gender, and level of education.
• Company position. More commonly, you’ll be looking for someone in a specific company position. What is their job title? What are their responsibilities? Are they a specific type of decision maker?
• Industry/niche. What about the company, what industry is it in? What kind of niche does it serve?
• Company size. How big is the company? How many employees does it have? What kind of revenue does it generate?
• Location. Oh, and where is the company? That seems important.
• Current circumstances. You can also define a target customer based on their current circumstances. For example, are they struggling with a specific problem? Are they in a specific phase of company growth? Is there a specific type of product or solution they’re looking for?

How to Build a Targeted List of Prospects for Cold Email Outreach

Okay. So you’ve got your ideal customer profile.

What now?

Now you have to go through the steps to build a list of emails of people who match this profile.

There are two main ways to do this.

1. Hire a lead generation agency to build the list for you

If you work with a good agency, then you’ll get great results without needing to worry about any of the setup, optimization, or anything else. Honestly, these days, there’s so much that goes into cold emailing that I can only recommend you go the agency route. Otherwise, you’re going to spend way too much time and money making all the mistakes that inevitably you’re going to make if you don’t know exactly what you’re doing.

We offer a done-for-you email outreach service, so rather than worrying about doing all this email stuff on your own, we can do it for you! Interested? Grab a time from my calendar and let’s chat!

Look, I know I am biased, but trust me here. I started cold email outreach knowing nothing about it, reading articles just like this one, trying to figure it all out myself. I spent a ton of time and money making every mistake that every beginner makes. I wondered why I wasn’t getting results. I tried a thousand different things to try to improve results.

In the end, I finally figured out the formula, and there are legitimately over a hundred pieces to this puzzle to figure out. It took me over a year to get to a point where I could actually do cold email outreach effectively, at scale, and reach inboxes (rather than spam folders).

So, save yourself the time, money, and headaches and just go with an agency that does this every day for dozens of clients and knows what they’re doing!

Again, if you’re interested in getting started with cold outreach, grab a time from my calendar and let’s chat!

2. Build the list yourself

Alternatively, you could build the list manually using tools. It’s more time-consuming, and has a steep learning curve, as well as some risk, but if you are a DIY-type then you can go this route and build the list yourself.

Tools to Build a Targeted List of Prospects for Cold Email Outreach

Alright, let’s get to the tools!

1. LinkedIn (and/or LinkedIn Sales Navigator) + 3rd party scrapers

You’re probably rolling your eyes right now, and thinking to yourself, “Yeah, everyone knows about LinkedIn, but I’m here to discover tools I don’t already know about!”

Don’t worry, I got you. The secret with LinkedIn (and LinkedIn Sales Navigator) is to use third-party tools that automatically scrape the search results and find email addresses for everyone in the search results. How do they do it? I don’t know. Maybe it’s magic. But it works. I tested a bunch of tools that do it, and these are the two best:

Wiza.

Wiza is awesome. You conduct a search in LinkedIn, and a little button will appear next to every person’s name that says “Get Email.” You click it and it figures out their email address, verifies it, and adds it to a list that you can export to CSV. Or, you can click “Export emails with Wiza .csv” and it’ll scan all the search results and export as many email addresses as you want.

LeadLeaper.

LeadLeaper does the same thing as Wiza, but it’s a bit less user-friendly. It is, however, significantly cheaper, and gives you better bang for your buck. Check out this list of over 2,000 leads I generated with LeadLeaper in about 15 minutes, on near full autopilot:

That’ll keep my cold email outreach pipeline full for a few days! 😀

2. RevenueBase.

RevenueBase is shaking things up in the leads database world by offering cleaner and more current data than what’s typically found in the B2B space. This means fewer dead-end emails and no limits on how many leads you can pull, addressing one of the major frustrations users face with other databases.

It stands out with its deep filtering capabilities and automatic email verification, making it a top choice for sourcing B2B contacts. This approach simplifies the initial step of gathering contact info for B2B leads, setting a new standard for efficiency and reliability in lead databases.

3. Snov.io

Snov.io is one of those rare tools that lets you build a targeted prospect list and act on it right away, without stitching together five different apps. You can find and collect leads from LinkedIn and Sales Navigator via a Chrome extension, save them into lists, and keep everything organized for outreach.

What I like about Snov.io is that it covers the full “list-building” workflow: email finding (including LinkedIn prospecting), verification, and drip campaigns, so you can go from “Here’s my ICP” to “Here’s my exportable list (and my follow-ups queued)” in one place.

This tool is also built with cold outreach realities in mind: you can verify emails as you collect them (so you’re not loading your pipeline with bounces), and then launch sequences from the same platform when you’re ready. 

4. Apollo.

Apollo has its own database of people for you to browse, but also has a Chrome extension that lets you perform the same lead extraction tricks on LinkedIn as Wiza and LeadLeaper. It takes a little more manual work to get leads through the Chrome extension compared to LeadLeaper, but it organizes them in a better way than Wiza or LeadLeaper.

It’s more user-friendly than LeadLeaper, and about as user-friendly as Wiza.

The database has good search filters, so you can narrow down your target audience however you like, but it can get expensive and time-consuming to get the lead information out of Apollo if you don’t upgrade your subscription.

I have a more in-depth guide on LinkedIn outreach here, so click the link to check that out! And for more LinkedIn email finders, click that link, where I’ve ranked the top nine of them.

5. MeetAlfred.

Staying with the theme of leveraging LinkedIn, I’d like to introduce you to Alfred. MeetAlfred is a LinkedIn automation tool that automatically visits profiles of people in your target market, sends a connection request, and even sends follow-up messages on a schedule you define. You just give it a search results URL from LinkedIn, and it’ll take care of the rest. It’s fantastic for growing your LinkedIn connections on autopilot, and sending automatic messages to your new connections to start conversations that can turn into leads.

And when you connect with someone on LinkedIn, you’ll usually get access to their email address (find it in the “Contact info” on their profile). Add that email address to your outreach list!

6. Anymail Finder.

Next, let’s look at a basic tool, Anymail Finder. With this tool, you can enter a person’s name (or their job title) as well as their company (or a website), and immediately conduct a search that can find that person’s email address. It’s a great alternative to using Wiza or LeadLeaper (see above) if you prefer a more manual process. If you’re willing to put in some effort, you can generate cold emails in bulk, and benefit from the database’s impressive 97 percent accuracy.

7. LeadFuze.

LeadFuze can actually automate your list building process. It’s essentially a huge database of people and their contact & job info. You can use it search for potential leads based on an impressive range of criteria, even down to how much the company is currently spending on advertising.

It relies on information from many different sources, and can automatically add leads that meet your criteria to your list every day, and then send them (automatically) to your cold email outreach platform of choice, such as Lemlist or Mailshake. This is the best way I know of to actually automate your list building and outreach process.

8. Seamless.ai.

Seamless.ai functions similarly to LeadFuze. It’s an AI-based service that allows you to compile contact lists, verify emails, verify phone numbers, and even help you create targeted messages. You can also use it to search various social media platforms (including LinkedIn), and integrate with Salesforce, Gmail, and other major platforms. You can generate up to 25 leads for free, or pay for a plan that allows you to generate unlimited leads.

9. UpLead.

UpLead is another similar tool to LeadFuze and Seamless.ai. It relies on a database of more than 200 million contacts and 19 million companies, spanning more than 200 different countries. But don’t worry; you’ll have an easy time finding the cold email outreach leads you want with the platform’s 50 different filters.

It also integrates directly with your CRM of choice, making it easier to manage those leads and follow up once you generate them. Paid plans start at 99 usd per month for 170 credits.

10. Voila Norbert.

Norbert is an artificial intelligence (AI) driven digital assistant that was created to help companies find more valuable leads. You’ll enter some details about who you’re looking for, and Norbert will help you find thousands of email addresses of people who match your criteria.

You can get 50 leads for free right now, with a claimed accuracy of up to 98 percent, or you can purchase packages for up to 50,000 generated leads each month. You can also use Norbert to scan, verify and clean lists that you’ve already generated from other tools.

11. Albacross.

Albacross takes a slightly different approach than some of the other tools on this list. With it, you’ll be able to identify and track the people who visit your website. You’ll be able to figure out where they work, the size of their company, their average revenue, and even information about decision makers in that company. This is ideal if you’re getting a sizable stream of traffic on your website but you’re still struggling to get a consistent stream of leads for your business.

12. Intercom.

Intercom seems to make just about every tools list I make, but it’s for good reason. It does everything, and it does it well! In this case, you can use Intercom to capture website visitor contact info. Intercom is that little blue bubble icon in the lower-right of your screen. It welcomes new visitors and provides them with a way to communicate directly with us, and leave their email address so we can follow-up with them!

Renting / Buying a List vs. Building Your Own

Sure, you can buy or rent a list of email addresses. But this is a bad idea for many reasons.

For starters, there’s no guarantee these emails will be real, active, and relevant. The list could even include email addresses known as “spam traps” which are meant to catch spammers in the act.

If you’re sending too many emails that end up bouncing or falling into spam traps, your email address or even your entire domain could be blacklisted. This would result in all your emails going right into recipients’ spam folders.

So if you’re doing cold email outreach, use a targeted list that you build yourself, and be sure to validate and clean it using an email address validator before you send any emails to it.

Need more reasons to build your own email list rather than buying or renting one?

• Better customer fits. You’ll have much better customer fits. The people you reach out to will be much more interested in your products and services. And of course, they’ll be much more likely to buy.
• Higher response rates. This one’s a no brainer. If your target is a good fit, they’ll be much more likely to respond to your email. If you throw together a list of email addresses with no thought to the people who own those email addresses, you’re going to get ignored.
• Less wasted time. Sales success is partially defined by efficiency. Cold email outreach can be a tremendously beneficial way to spend your time, or it could be a total waste. The difference is the quality of your leads. A better list, with better defined targets will result in less wasted time.
• Fewer spam complaints. Emailing a stranger about something they have no interest in is a great way to get flagged as spam. Emailing specific targets will help you reduce those spam complaints, so you can keep emailing consistently with no fear of being email blacklisted.
• A better understanding of your customers. Finally, the research you’ll do when building your list is a great opportunity to better understand your customers. Who are they, and how can you help them?

Building a list of targeted prospects for cold email outreach can be tough. So can cold email outreach itself. But it’s even tougher if you don’t have a way to measure your progress.

That’s why we created EmailAnalytics.

With EmailAnalytics, you’ll be able to get an in-depth look at your Gmail account activity. You can track how many emails you’re sending, your average response time, and how many responses you’re getting. You can also track dozens of other important metrics, and see them visualized in graph form so they’re easier to understand.

It’s probably better to see it for yourself. So sign up for a free trial today!

Is It Legal to Build or Buy a Prospect List?

Every page ranking for this question skips it. We read eight of them, and not one names a single statute by number.

That matters, because the legal exposure follows where your prospect sits rather than where you sit.

Where your prospect is	What the law says	The practical rule
United States	The CAN-SPAM Act of 2003 is codified at 15 U.S.C. section 7704, and the FTC states the law makes no exception for business-to-business email	Opt-out rather than opt-in. Honor an unsubscribe within 10 business days and use a real physical postal address.
European Union, individuals	Article 13(1) of the ePrivacy Directive 2002/58/EC requires prior consent for direct marketing by electronic mail	Consent first. A purchased list will almost never satisfy this.
European Union, companies	Article 13(5) applies the consent rule only to subscribers who are natural persons, leaving legal persons to individual member states	B2B cold email is lawful in some member states and unlawful in others. Check per country.
Any EU personal data you did not collect yourself	Article 14 of the GDPR, Regulation (EU) 2016/679, covers information to be provided where personal data have not been obtained from the data subject	You owe the person a notice, and Article 14(3)(b) sets the deadline at your first communication.
Canada	Section 6(1) of Canada’s Anti-Spam Legislation, S.C. 2010 c.23, governs commercial electronic messages	Consent-based, with narrow implied-consent categories.

The GDPR’s Article 14 is the one people miss, and it’s the one a purchased list triggers. If you got someone’s data from a broker rather than from them, you owe them a notice at first contact.

Read the text yourself rather than taking our word for it. The GDPR is published at eur-lex.europa.eu, the ePrivacy Directive at eur-lex.europa.eu, the CAN-SPAM compliance guide at ftc.gov, and CASL at laws-lois.justice.gc.ca.

What LinkedIn’s Terms Say About Scraping

Half the tactics on this page and on every competing page involve LinkedIn data. LinkedIn’s User Agreement addresses that directly, in section 8.2, under the heading Don’ts.

Section 8.2.2 says you will not “develop, support or use software, devices, scripts, robots or any other means or processes (such as crawlers, browser plugins and add-ons or any other technology) to scrape or copy the Services, including profiles and other data from the Services”.

Section 8.2.4 says you will not “copy, use, display or distribute any information (including content) obtained from the Services, whether directly or through third parties (such as search tools or data aggregators or brokers), without the consent of the content owner”.

Read 8.2.4 twice. It catches the buyer of a scraped list as well as the person who ran the scraper.

The full agreement is at linkedin.com/legal/user-agreement. We’re naming it because a tools list that recommends scrapers without mentioning it leaves out something you need.

Which Prospect Data Source Should You Use?

The tools below all sit on top of a data source, and the source decides your coverage, your cost and your risk. None of the eight pages ranking for this compares them.

Source	Coverage	Freshness	Cost model	Legal exposure
Your own closed-won and closed-lost CRM records	Narrow but exact	As fresh as your CRM	Free, you already own it	Lowest, you collected it
Referrals from current customers	Smallest of any source	Current	Free, costs relationship capital	Lowest, warm introduction
Job postings and hiring signals	Narrow, trigger-based	Days old	Free to read, paid to monitor	Low, public company data
Association and trade directories	Narrow, sector-specific	Often annual	Membership or free	Low, but check the directory terms
LinkedIn and Sales Navigator	Broadest for B2B roles	Current	Per-seat subscription	High if scraped, per LinkedIn section 8.2
Purchased contact databases	Broadest overall	Decays continuously	Per credit or per record	Highest, and it triggers GDPR Article 14

The order of that table is roughly the order you should work in. Most teams start at the bottom because it’s fastest, then wonder why the reply rates are bad.

What Those Vendor Accuracy Percentages Measure

This page used to repeat three vendor accuracy figures as though they were measurements. They aren’t, and here’s what we found when we checked each one.

What this page used to say	What we found
Other pages say Anymail Finder delivers 97 percent accuracy, and so did we.	Anymail Finder publishes 97 percent as a refund guarantee on results it marks verified, rather than as a measured rate. Its own 2026 benchmark, which it funded and published itself, reports 98.9 percent across a sample of 5,000.
Other pages say Voila Norbert delivers a claimed accuracy of up to 98 percent, and so did we.	Voila Norbert says “up to 98 percent” and publishes no methodology. A rival’s independently scored benchmark placed it at 75.4 percent accuracy and last of 14 on coverage, so treat the headline figure as marketing.
This page said UpLead holds a database of more than 200 million contacts and 19 million companies, with plans from 79 usd per month for 200 leads.	UpLead now advertises more than 200 million contacts and 19 million companies, and its entry plan is 99 usd per month for 170 credits. It has also dropped the 200-plus countries claim it used to make.

A refund guarantee and a measured accuracy rate are different things wearing the same number. One tells you what the vendor will pay back, and the other tells you how often the data is right.

One vendor change worth flagging: LeadFuze has pivoted away from prospecting entirely, toward data licensing and an identity-graph API. Its entry below describes a product that no longer works the way it did.

All vendor figures on this page were checked on September 14, 2026. They drift, so check the date before you trust the number.

The Prospecting Rules People Ask About, and Where They Came From

Four rules come up constantly in searches around this topic. Three have a traceable author, one doesn’t, and most articles get all four wrong.

What is the 2-2-2 rule in sales?

Follow up after 2 days, 2 weeks and 2 months. The earliest datable source is Mark Hunter, writing on thesaleshunter.com with a published date of May 1, 2013.

Two details get dropped every time it’s repeated. Hunter’s version is about securing repeat sales from existing customers. He says the contact must be by phone, adding that you won’t get what you need from email.

So the prospecting version you’ll see everywhere is a repurposing of a post-purchase rule. That doesn’t make it useless, but nobody who published it has tested it on cold outreach.

What is the 30-day rule in prospecting?

The prospecting you do in a given 30-day period pays off roughly 90 days later. It comes from Jeb Blount’s book Fanatical Prospecting, published by Wiley in 2015.

Blount’s point is about the lag between activity and pipeline. Skip a month of prospecting and the hole shows up a quarter later, when it’s too late to fix.

What are the 5 P’s of prospecting?

There’s no agreed answer, and that’s the finding. We found at least three incompatible versions in circulation.

The earliest attributable coinage we located is Jim Brodo’s, published on the Association for Talent Development blog on November 13, 2018. His five are Purpose, Preparation, Personalization, Perseverance and Practice. Other sources publish completely different sets, including one that’s just five words starting with P strung into a slogan.

What is the golden rule of prospecting?

Nobody knows, and we checked around fifteen sources that assert one. Each gives a different rule, and none names an originator.

The nearest thing to an ancestor is Brian Tracy’s advice to spend more time with better prospects. If a page states the golden rule as settled fact, it made it up.

Frequently Asked Questions About Building a Prospect List

How do you build a prospect list from scratch?

Start with your own closed-won records and define the pattern they share, then look for companies matching it. Add trigger sources like job postings before you touch a paid database. Buying records first is the most common and most expensive mistake.

Is buying an email list a good idea?

Buying a list is the fastest way to a spam trap and a blocklisting. Purchased records also carry the heaviest legal exposure, since GDPR Article 14 requires you to notify people whose data you obtained elsewhere. Build or rent before you buy.

How accurate are B2B contact databases?

Less accurate than their marketing pages claim. Vendors say 97 or 98 percent, but those are usually refund guarantees on records they already marked verified. Independent scoring has put well-known tools in the seventies.

What is an ideal customer profile?

An ideal customer profile describes the company you sell to best, using firmographics like industry, size, location and current circumstances. It’s distinct from a buyer persona, which describes the individual person inside that company. You need the profile before any list-building tool is useful.

How many prospects should be on a list?

Enough to run a statistically meaningful test, and no more than you can personalize. A few hundred well-qualified records beat tens of thousands of scraped ones. Reply rate falls as list size grows, because targeting gets looser.

Does response time matter in cold outreach?

It matters enormously once someone replies. Our own benchmark puts the average work-hours reply time across 22 industries at 4 hours 10 minutes, measured over 25,384,649 emails. That figure covers existing relationships rather than cold ones. Teams that watch the number and act on it tend to close the gap, which is what our response time tracking is built for.