Top 15 Lead Generation Companies You Can Rely On [2023 Review]

Top 15 Lead Generation Companies You Can Rely On [2023 Review]

Finding the best lead generation company for your company or organization should be a really simple task. 

Because we believe if you are looking for a company to do lead generation for you, chances are that you are not growing at the rate you wish and are looking to fill your pipeline with leads. 

With that said, when it comes to lead generation, it’s only a few criteria you need to care about, indeed. You should look for a lead generation company that:

  • ACTUALLY gets you ACTUAL leads that show genuine interest and will truly buy (Not people who only downloaded stuff)
  • Will present your company in a way that’s representative of your brand and its philosophies
  • Has experience in your industry or niche
  • Offers a great, reasonable price-value deal (so you won’t get stuck in a retainer contract that only profits them)
  • Won’t get you a bad rap on social media (prospects won’t be complaining about poor, annoying marketing or outreach approaches)

So we considered all this and scouted the industry to list the top lead generation companies you need to consider today. 

This list is inspired by our own experience and the companies that pop out in the hottest lead generation conversations out there. So, here you go. 

15 best lead generation companies 

Here are all the companies included in this list. 

  • Nerdy Joe
  • CallBox
  • Cience
  • SalesAR
  • Cleverly
  • SalesPro Leads
  • Purple Sales
  • FlyTech Inc
  • Operatix
  • Respect Studio
  • Sales Nash
  • Leadium
  • Martial Group
  • SocialBloom

Since you know the factors that can help you to compare companies, here are the top 15 lead generation agencies you can consider. 

1 – Nerdy Joe

Nerdy Joe is a B2B digital marketing agency that only offers email marketing and outbound lead generation services (i.e., cold emailing).

Contrary to most lead generation companies who are Jack of all trades, we keep our lead generation service offerings this narrow because we like the idea of offering something specific and performing it excellently. 

Working with us is pretty straightforward as we don’t require you to commit to a certain number of months, and you know exactly what you get when you choose to work with us.

What makes Nerdy Joe the best lead generation company for your needs

Here are some reasons why Nerdy Joe is the best lead generation company for you.

You want a company that sells results — not the number of emails they send

There generally are four types of lead generation companies:

  • Those who’ll charge you based on the number of emails they send or the number of contacts they put in your list.
  • Those charge you a monthly fee and promise you’ll get the best leads ever but never deliver on their promise.
  • Those that call everyone who’s downloaded an ebook or PDF  a LEAD and charge you for that.
  • Those that charge based on the number of QUALIFIED leads they generate for your sales team.

To be fair, it’s only the last type of company that truly cares about your ROI and brings you great results. 

We believe if you need help with lead generation, your situation is that you’re not growing at the rate you want and need LEADS to sell to. 

So, the value we seek to offer you doesn’t circle around the number of emails we send, the work we do, but the result we get for you. 

Because of this, our lead generation experts and appointment-setting specialists only take pride in providing value and leading with metrics that matter — not vanity metrics like open rate, bounce rate, clickthrough rate, etc.

Metrics we lead with include: 

  • Number of positive replies
  • Number of meetings booked
  • Lead to close rate

For instance, if you want to work with us to increase the customer base for your SaaS product, we’ll report:

  • The number of new sign-ups you get. 
  • The number of positive replies we get.
  • The number of demo calls we book for you.
  • And the number of new clients we get for you.

If you’re a B2B company selling to accountants, we’ll only charge you for the number of appointments we set for your sales teams. 

Our offering varies depending on your company’s overall goal and what outcome matters the most to you.

You want a company that represents you well (strong personalization) — not one that blasts everyone with cold emails 

Say were you to choose between two companies that do lead generation for you. 

  • A: They build huge lists of thousands of people and blast them with generic emails.
  • B: They built a well-researched list of 30 prospects and crafted personalized, relevant, and compelling emails to reach out to them.

Which of the two lead gen companies would you prefer to be represented by?

B, yes, that’s what we figured. 

Unfortunately, the lead generation industry has changed dramatically over the past few years.

Simply go on Twitter and check what type of advice or strategies most self-proclaimed lead generation experts are chanting.

Most people believe that you need to send 1000 emails daily to get the results you want (i.e., cold outreach or lead generation success is a matter of volume).

They believe in scenarios like sending 1000 cold emails per day for a week and converting around 10 prospects at the end of the week. That does seem like some real strategy and might even make them feel like they’re working hard.  

Also, granted, this tactic probably works for some companies, but it certainly guarantees the following scenarios:

  • Both ESPs and ISPs will flag your email and IP addresses as spammers.  
  • They’ll kill your company’s reputation, and you’ll get a bad rap on social media. 
  • The quality of the leads you get will be subpar. 
  • Your domain will face severe deliverability issues.

We avoid this by being super-specific in who we target and creating personalized messages to very short prospect lists, and guess what? It works. 

We spend time learning about your ideal customer profile (ICP) in and out before we send a single email. We want each recipient to feel like you know them and wonder why you didn’t cross their paths months ago.

We also do that because we don’t want to send 1000 emails per day for a week to get 4 sign-ups or meetings booked at the end of the week. Our ideal scenario is that we send 20 emails, we get 15 replies, 10 positives, and get you 4 sales-qualified leads or sign-ups.

Now, don’t get this wrong. By personalization, we mean we make each email relatable and timely. We don’t just add [[First name]] and other variables to the email subject lines. 

Just for some context on how this works for us, here’s an example of a reply we received as we reached out to a VP of Marketing who has historically blocked or reported SPAM to anyone who’s sent him a cold email.

Here’s another example where we pitched a Head of Marketing, and here’s the response. 

Contrary to what these gurus suggest, most of our outbound lead generation campaigns are run towards 10 or 15 people, not 1000. We believe that the best sales strategy is to build trust and relationships. That’s why most of the responses we get are:

  • “Wow, such a nice email.”
  • “Thank you for the nice words and compliment.”
  • “Let’s catch up next Thursday.”
  • “Love your email. Can you follow up on the 25th?” 

You might wonder where we get information about each prospect or member of your target audience we use for personalization?

  • We listen to podcasts your potential customers have been on.
  • We read blog posts they wrote. 
  • We read their LinkedIn, Twitter, and Mastodon posts.
  • We read discussions on forums they’re in.
  • etc.

The data we collect is aggregated to provide unique angles that allow us to craft personalized first lines and icebreakers.

Here’s what it looks like in real life. We pitched CoSchedule’s Head of Content, Ben Sailer, and asked him if we could write for them.

Here’s what he replied 1 hour later.

Here is another successful example from a similar strategy.

As you can see from both screenshots, the cold emails sent to the prospects were so compelling that they couldn’t help but acknowledge it before offering to hire us.

You want quality (manually built) data

Our policy is to never use client data in lead generation campaigns. As well, unlike most lead generation companies, we do not rely on data intelligence tools such as ZoomInfo or Lusha for data.

We don’t trust these data sources because they only aggregate technographic and demographic data. For example, using these tools, it’s easy to find data regarding companies that: 

  • Are in the accounting software industry, 
  • Have 30 to 65 employees,
  • Are series B-funded companies,
  • Are in Europe,
  • Use Slack or Digital Ocean as part of their tech stack.
  • Have a ping pong table at the office. 

The problem with this data is that it can only serve to craft obvious personalized first lines like:

So, we like to take it a little further down the personalization road. We seek and make use of psychographic data and other types of data.

How do we do that?

When we sign a new client, one of the first things we do is ask about their ICP.

We ask questions like:

  • Which type of clients has the highest lifetime value?
  • Which type of clients is easiest to close?
  • Which type of clients churns the fastest?
  • What are the top 3 objections you hear from prospective clients during sales calls?
  • Why did you start your company? 
  • What pain points were you trying to solve?
  • Etc.

By answering these questions, we can pinpoint precisely who we should target and why. And this type of information makes the difference between: 

“We’re targeting series A tech companies,” 


Our ICP is a CTO of a healthcare software company selling to Healthcare professionals, and his main pain points are lack of organization, time management, and team collaboration. He often refers to XYZ newsletter to get insights as to how to manage his team efficiently.” 

Once we have a clear understanding of who the ICP is, we proceed to manually build our list, and that’s what we use to run our lead generation campaigns.

We won’t make you sign any retainer contract — you’re free to renew or stop your subscription based on satisfaction.

Unlike most lead generation companies that require you to sign a 3 to 6-month contract, Nerdy Joe is a subscription-based business. 

Working with us means you get results starting from Month 1, and you pay and renew your subscription depending on how satisfied you are with our service and your budget.

Also, because you know exactly what you are paying for, we don’t send you proposals based on surface-level information we have about your company. We also don’t waste your time with useless meetings. 

Here are the benefits you can enjoy from this. 

  • Flexibility: Our subscription system offers you the flexibility to choose when to subscribe and when to stop. This means you can choose to stop your subscription if you are not satisfied with the service or if you no longer need it. In contrast, a retainer contract usually requires you to commit to a fixed period of time and payment, regardless of your satisfaction with the service.
  • Risk mitigation: In our subscription system, you take on less risk than with a retainer contract. You have the option to stop the subscription if you are not satisfied with the service without the financial and legal implications that come with breaking a retainer contract.
  • Accountability: You can be sure the system encourages us to maintain a high level of satisfaction for you. We know you have the option to stop the subscription if you are not happy with the service. In contrast, a retainer contract may lead to complacency on the part of the service provider since you are already committed to paying for the service regardless of your satisfaction.
We give you the exact bang for your buck — your chosen plan tells you exactly what you get. 

Our offerings and pricing are clear — and this is probably why we’re one of the best lead generation agencies. You choose a plan based on your budget and needs, and you know exactly what you get at the end of the month.

  • No, “it depends on a lot of factors.”
  • No, “Your account manager swallowed the key to his office and couldn’t work.”

If you have product-market fit and are solving a problem that most people have, it is almost everything we need to get you results.

But if you’re still figuring out who your solution is best for, then we’re probably not going to be of help.


Our lead generation service’s pricing is crystal clear. We have three plans:

  • Silver: It costs $499/month and only gives you two warm LEADS.
  • Gold: This is the plan we recommend, as it gives you the biggest bang for your buck. It costs $999/month and gives you 6 hot and sales-qualified appointments or LEADS.
  • Platinum: This plan is for mid-level to enterprise companies willing to fuel their sales team with up to 15 sales-ready leads on a monthly basis.

Our email marketing pricing includes the following:

  • The tech stack we use to build your prospect list and send and monitor your campaign.
  • A complete list of prospects that fit your buyer persona and ICP.
  • The campaign setup fees.

2 – CallBox

CallBox is a B2B lead generation and appointment-setting agency that helps to manage leads, nurture relationships, monitor campaigns, and increase appointments with qualified sales. 

They implement a multi-channel marketing approach by combining phone calls, email,  social media, SEO, and chatbots to generate leads for their clients. 

They achieve their marketing campaigns for their clients through four proven steps:

  • Identifying companies that match their ICP
  • Profiling key stakeholders or prospects within the targeted companies
  • Engaging with the prospects through various channels 
  • Setting and confirming appointments with the right people

The lead generation agency also works with Pipeline and HubSpot to create a seamless and efficient process that drives sales and improves revenue. 

There are no details about the company’s pricing on their website, but you can request a quote if you want to work with them. 

3 – Cience

Cience is a B2B lead generation service and software that offers inbound and outbound lead generation services for enterprises across 195+ industries. They utilize a comprehensive lead generation approach to produce scalable results for various companies.

Some of their processes for their clients include:

  • Growing the client’s pipeline through research (phone, social, email, or web prospecting) and their outbound platform
  • Targeting qualified prospects across different departments in top-tier companies to create sales opportunities
  • Leveraging the latest sales intelligent technologies to execute multi-channel outbound campaigns, optimize, and build the pipeline for sales success.

Some of their latest sales intelligence tools include programmatic ads tools, chatbot software, appointment setting tools, real-time chat, marketing platforms, CRMs, and project management tools.

Unlike Nerdy Joe’s subscription plan, Cience requires a minimum of a 3-month contract before generating sales opportunities for your company.

There are no pricing details on their website, but you can request a quote from their SDR.

4 – SalesAR

SalesAR is a B2B lead generation agency that focuses on B2B lead generation, appointment setting, and anti-spam services to spread brand awareness and boost sales across targeted audiences. 

Their B2B lead generation process for their clients includes:

  • Accessing ICPs and analyzing the market
  • Selecting companies that will likely need your products or services
  • Searching for prospects (mostly decision-makers) within selected companies
  • Validated the selected contacts

Upon completion of the B2B lead generation process, they can carry out appointment-setting service through customized outreach, negotiating with prospects, arranging calls and meetings, and giving their clients the warm leads to close. 

Sales AR offers its services based on three pricing plans, but you will have to request a quote for each of the plans. These plans include:

  • Monthly — Test and Standard plan
  • Quarterly — Basic and business plan
  • A customized plan is available upon request.

5 – Cleverly

Cleverly is a B2B lead generation agency that uses cold email marketing campaign and LinkedIn to generate leads and drive revenue. 

Their typical lead generation technique is as follows:

  • They build targeted and qualified email lists of prospects 
  • They write clear and personalized cold outreach messages that get responses
  • They send custom messages to tons of prospects each month
  • They notify you when leads respond to close the deals

They offer different pricing based on the type of lead generation service you want. For example, you will have to contact them to get a quote for the cold email lead generation service. The service isn’t based on contracts but was undisclosed on their website. 

Meanwhile, they offer three pricing plans for their lead generation service. This includes:

  • Silver plan, which costs $397 per month
  • Gold plan, which costs $497 per month
  • Platinum plan, which costs $997 per month

6 – is a lead generation company that uses virtual receptionists to capture and convert leads through website chat, phone calls, text messages, and social media platforms such as Facebook.

They offer outreach campaigns and appointment-setting services to generate qualified leads and increase. Here is how their process works:

  • First, you provide a list of prospects or clients who need an outreach
  • Then, they call the prospects or client
  • They send a follow-up email and text messages to boost engagement
  • They schedule meetings with the qualified leads based on your preferences
  • They track their campaign performance.

They integrate with various programs such as HubSpot, Salesforce, Clio, Zapier, and more to ensure that your business is responsive and wins more clients. 

They offer four pricing plans for their outreach campaigns, and these includes:

  • Starter, which costs $400 per month
  • Basic plan, which costs $1750 per month
  • PRO plan, which costs $3000 per month
  • Custom plan, which requires you to contact them.

7 – SalesPro Leads

SalesPro Leads is a B2B lead generation company and appointment-setting company that identifies quality sales opportunities for businesses in the technology industry. They offer two programs through which they identify these sales leads and execute B2B appointment-setting services. These programs include:

  • Exclusive Partner Lead Program
  • Target Market Program

These programs enable the agency to partner with your sales team and empower them to generate quality sales leads that produce scalable results.

There is no information about their pricing details on their website. However, you must call, send an email, or fill out their forms to get a quote. 

8 – Purple Sales

Purple Sales is a hybrid marketing and sales agency that focuses on B2B tech companies and helps them to increase their pipeline value and generate rapid growth. They mainly focus on providing B2B appointment setting and sales services for these companies. 

Focusing on their B2B appointment setting service, here is a quick view of how their process works.

  • They identify your ICP
  • They send cold email campaigns to a targeted audience
  • They call prospects who have shown interest in the cold email campaign
  • They perform a multi-channel follow-up approach on the prospects
  • Their sales rep handles the rest of the sales process

They also make use of sales enablement tools to make the sales cycle faster and give a weekly performance report on their activities. There is no information about their pricing as you will have to fill out a form to get a quote.

9 – FlyTech Inc

FlyTech is a lead generation agency that helps companies to grow their pipeline by reaching out to prospects through various digital channels.

They focus on acquiring customers through targeted campaigns across various marketing and sales channels. 

Contrary to Nerdy Joe’s well-tailored plan, their process involves implementing cost-effective strategies such as curating and A/B testing copies across channels, measuring how customers respond, and scaling the most effective messaging. 

Some of the channels they utilize include:

  • Paid search
  • Social Targeting (LinkedIn, Meta, and Twitter)
  • Direct outreach (personalized emails and LinkedIn messages)
  • Channel exploration

There are no pricing details about their services, but you can get in touch to hear from them.

10 – Operatix

Operatix is a lead generation and outsourced SDR agency that focuses on helping B2B tech companies to increase their pipeline and generate revenue. They understand the client’s value proposition and identify quality leads that can provide sales opportunities. 

They also implement some account-based marketing strategies that help to grow their client’s sales pipeline and increase conversion rate. Some of the acclaimed results they deliver include:

  • Account identification
  • Cold prospecting
  • Lead qualification
  • Account-based selling
  • Outbound sales development

There are no details about their pricing. You will have to get in touch with the team to get a quote.

11 – Respect Studio

Respect Studio is a B2B lead generation agency that specializes in growing sales pipelines to generate leads and increase revenue. They offer two main services to their clients.

  • B2B Marketing
  • LinkedIn Lead generation

Their B2B marketing service focuses on identifying prospects for their clients, focusing on their channels, and establishing a content marketing process that generates and converts leads. 

Meanwhile, their LinkedIn lead generation service involves identifying prospects on LinkedIn, engaging with them, and crafting an outreach strategy that converts them. If you want to know about their pricing, you must book a call with them. 

12 – Sales Nash

Sales Nash is a sales development company that provides appointment setting, prospecting, and sales development services for over 40 clients. The main goal is to generate qualified leads for their clients and close deals that help them to grow their business. 

Although their original focus was on the software and SaaS industries, they have now expanded into various industries such as healthcare, health tech, digital marketing, event management, and more. 

Their work process is classified into four stages which include:

  • Evaluation of projects
  • Preparation of projects
  • Execution of projects
  • On-going adjustments

Sales Nash offers three pricing plans for their appointment-setting service.

  • Junior team, which costs $2250 per month
  • Standard team, which costs $3250 per month
  • Extended team, which costs $4750 per month

13 – Leadium

Leadium is a sales development agency that provides lead generation and appointment-setting services for various companies.

They focus on implementing sales activities to create more qualified sales opportunities while reducing customer acquisition costs and HR burdens. 

They use top-of-funnel data and offer appointment-setting services through email, SMS, phone, LinkedIn, and gifting and set up qualified meetings that can convert.

This gets them in front of more prospects, engages with them, wins deals, and generates more revenue. 

There are no pricing details about Leadium’s service. You will have to fill out a form to get a quote. 

14 – Martal Group

Martal Group is a B2B lead generation agency that helps tech and SaaS companies to generate leads and get various sales opportunities. 

They execute this process by providing a team of skilled SDRs that outsource qualified leads through outbound and inbound methodology, book appointments, and drive new client registration for your business. 

The team of experts implements the strategies by leveraging real-time data to discover companies that fit the ideal buyer personas. Some results you can get from this company include: 

  • Scheduling lunch and learn meetings for prospects
  • Targeting competitors’ customers through ABM
  • Engaging prospects with buyer’s intent to improve conversion rate 

Nonetheless, Martal Group provides an ROI calculator on their website, which you can use to estimate your fees. For instance, ten sales appointments per month will cost you $15,000 for 3 months. 

All their pricing plans are contractual, with a minimum of 3 months. Each plan gets you different services, and you have to request a quote to know about your exact fee.

15 – SocialBloom

Social Bloom is a B2B lead generation company that generates qualified leads and sales opportunities for its clients. They focus on B2B outbound campaigns that involve manual sourcing and other strategies such as cold emails, social selling, and calling. 

They deliver their results through three main processes:

  • They identify their ideal customers for the business
  • They source accurate data and send personalized messages that can convert
  • They manage and optimize the outbound campaigns to generate leads and book demos for the business.

SocialBloom has three pricing plans which include:

  • Email campaign, which costs $3 per contact
  • Calling campaign, which costs $6 per contact
  • A LinkedIn campaign which costs $1 per contact

Nerdy Joe is that lead generation company you’re looking for

If you are looking for an agency that will use paid search to boost your sales, FlyTech Inc, Call Box, and the others on this list are suitable to lead generation agencies for you. 

But if what you’re looking for is:

  • An agency that charges you for results (leads generated), not tasks.
  • An agency that doesn’t require you to commit to a contract.
  • An agency that does not waste your time and that’s affordable.
  • A dedicated management team to get you more leads.
  • A team that offers lead nurturing.
  • A good lead generation company that offers you custom lead generation campaigns.
  • A group of experts that care about your company’s reputation and relationship with prospects.

Nerdy Joe is the lead generation agency you’re looking for. 

Get 3 – 5 meetings every week

We can fill your calendar with 3- 5 meetings every week. Just tell us who is your ideal customer, and we’ll get you meetings with them.

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