Close more deals faster with better leads.

Callbox is a marketing company that provides outsourced B2B marketing and sales support services to organizations. We help companies in the UK grow and expand their business across North America and APAC through lead generation, sales prospecting and appointment setting.

Reach your ideal customers with lead generation.

Get warm leads

We take care of finding and qualifying leads for you so you can focus on closing deals.

Secure sales meetings

Drive more demos and appointments to your sales team and let them focus on the opportunities that are likely to convert.

Drive event attendees

Go beyond the usual marketing channels and grow your brand with lead-generating webinars.

Engage the right people

With our database of companies and contacts, you can connect with the right people in your target organizations.

With our multi-touch multi-channel account-based marketing approach to lead generation, we do what it takes to ensure that your brand and offer reach your target customers and that each opportunity is ready for the next step in the sales cycle.

How We Help Your Business Grow

Callbox Reviews

I am very impressed with the business that Callbox has become.

Marcus Lemonis, a billionaire entrepreneur in the US who builds up businesses, tells companies that the key to a successful business is to have the right people, a well-defined process, and a quality product. In the case of Callbox, you have very good people that can be successful because of a very well-designed process which results in a quality product for your clients.

— Eugene Alfaro

They showed hard work and dedication and we really enjoyed working with them this past year.

We have worked with Callbox for about a year now and Narz has been our personal account manager. And it has been an incredibly pleasant experience. Our product is not the easiest thing to understand and it is a bit challenging, but they weren't afraid of a challenge and they were incredibly fast learners. Their hard work did not go unnoticed. The LIQWID team wishes them the best on their future endeavours.

— Valentina Mentchoukov

How We Help Companies Grow

As your outsourced marketing partner, we support different types of B2B marketing strategies from top-of-funnel lead generation all the way to account-based marketing programs. We carry out our outreach efforts across six channels so you can reach more potential customers.


  1. Send Personalized Emails
  2. Send Event-triggered Emails 


  1. Call Opens from Intro Email
  2. Call Opens from Follow-up Email


  1. Invite to Connect
  2. Send Follow-up Email


  1.   24/7 Sales Chat Support
  2. Forward Qualified Leads
  3. Follow-up Warm Prospects via Call & Email


  1.  Display Banner Ads to Target Prospects
  2. Identify Prospects that Visit Your Website
  3. Follow-up Prospects via Call & Email


  1. Promote the webinar
  2. Facilitate the webinar
  3. Measure the webinar’s performance

Manage leads. Monitor campaigns. Nurture relationships.

Get your marketing running on all gears.

By combining the power of our in-house campaign management platform, Callbox Pipeline, and the highly-rated sales and marketing software, HubSpot, we create a more seamless, end-to-end customer acquisition process to drive your sales and grow your revenue. 


Managed IT Firm, a Long-Term Callbox Client, Closes $150K in One Campaign

Vendors selling complex products need technically savvy marketers to engage potential customers. Callbox shared its industry expertise with this managed IT provider, and helped the Client close $150,000 in sales. READ FULL STORY

Top Ranking B2B Lead Generation Services

Ranked as One of the Best Sales Lead Generation Services

Among The Best B2B Lead Generation Services

Call now to speak to a Marketing Consultant!

  • Tell us about your business
  • Find out if we’re a good fit
  • Get the specifics about our services

+44 (020) 7442 5066

26 York St, Marylebone, London W1U 6PZ, United Kingdom