Welcome to GSA Marketing

Telemarketing, Data Building & Lead Generation Specialists

Get better quality leads - Win more sales

Telemarketing & B2B Lead Generation to help you grow your business in the UK and internationally

Let us use our 50+ years experience to help your lead generation activity

Please fill out the form and we will get back to you shortly.

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‘I need appointments for my sales team

We put you in front of the right prospects for business opportunities with our B2B appointment setting services.

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‘I need help with database building’

We build bespoke lists and validate existing databases to ensure your lead generation hits the right targets.

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‘I need help with lead generation’

We generate quality leads, not just quantity, giving you the best opportunity to convert and win new business.

About us

Our clients tell us that amongst the reasons they work with us is that we provide sound and unbiased advice and that we offer a no surprises approach with transparency that’s hard to find elsewhere. That means we work in partnership with our customers to never over-promise and under-deliver.

We offer an intelligent approach to cold calling and lead generation. Reinforced by fantastic reporting and high levels of communication, this provides a recipe for success.

The data sources that we use for this type of analysis include customer enquiry data, sales figures, costs, market data and customer feedback.

We can help you with

B2B Telemarketing

Outbound calling to generate quality sales leads.

Appointment Setting

Fill your diaries with quality sales appointments

UK and International Database Building

Bespoke marketing list for targeted lead generation.

Intelligent Email Marketing + Data

A blend of targeted data and clever email marketing

Telemarketing Training

Ensure your team delivers great telemarketing calls

Database Cleaning & Validation Services

Enhance your database through effective validation


Ready to increase your sales leads?
Contact us today

GSA provides an international and UK-wide service based in London. We have clients from France to Finland, Falkirk to Plymouth, Shrewsbury to Stockport and Belfast to Birmingham.

0330 335 1380


Correspondence Address

Unit 18. Upper Lye Lane, Horseshoe Business Park, Bricket Wood St. Albans AL2 3TA

Check out our Blog:

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12 Christmas Tips to Grow Your Business

The market is crowded, and competitors are desperate to grab a share. Many will do that at any cost and therefore, you need to be active, visible, credible and proactive to win and retain business in the coming period. So, what are our 12 Christmas Tips to ensure your business prospers in the next 12 months?

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How to Improve Gatekeeper Handling

The ability to get past gatekeepers during a telemarketing call is an essential skill. Some gatekeepers are simply there to provide a call forwarding service to take you to the decision maker. That’s often the case in smaller organisations but these types of gatekeeper are not what we’re referring to in this blog. In larger companies, reaching the decision-maker when being blocked by the gatekeeper requires skill and persistence. Check out our tips.

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GSA Business Development Ltd Company registration: 4796080 Registered Office: 73 Cornhill, London, EC3V 3QQ | VAT Reg No: 763 7222 25 | Data Protection Registration: ZA165880 | All rights reserved