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We used GSA for an event we had in London. They handled lead generation and telemarketing for the event. They were very thorough and touched base with us every step of the way to make sure the campaign was successful. They are professional and prompt and kept us up to date with the campaign and the milestones as we progressed closer to the event. I highly recommend if you need a telemarketing & B2B lead generation services you should reach out to GSA and talk to Jonathan and Monica
Boost Media International

I highly recommend the GSA team. The service they delivered was extremely responsive to all our requirements, and effective in getting Waisl in front of our senior decision-makers in hard-to-reach target airports.

For our European airport expansion, GSA executed a multi-channel exercise across phone, email, and LinkedIn, resulting in a robust database of core targets, within 21 key airports. The team successfully reached a significant number of Decision Making Contacts and delivered a professional, consistent approach that led to important discussions and engagement for our business development.

Their efforts led to concrete outcomes, securing high-level engagement at major hubs. GSA’s strategic and operational support was invaluable in helping WAISL navigate the complex, multi-front engagement required in the airport sector.

We would recommend them to any organisation with the objective to develop its B2B business.


Waisl
We engaged GSA to support our event delegate telemarketing campaign, and the results were excellent. Their team was professional, responsive and highly organised — they quickly understood our goals and delivered quality leads that helped boost delegate registration. Communication throughout the process was clear and efficient. We’re very pleased with the service and would happily work with them again.
The Surgery Show

We have been working with the GSA team since 2020 and the collaboration has been excellent in every aspect so far. Jonathan and his team are highly professional, responsive, adaptable and always available. They consistently demonstrate a strong understanding of our challenges and are able to adjust quickly and pragmatically.

GSA stands out for its solution-oriented mindset and true business partner approach. They are proactive reliable and continuously bring valuable ideas to the table.

A trusted and high-quality partnership that I highly recommend !

EDHEC Business School

We partnered with this agency and the experience was excellent. The team was highly professional, proactive, and attentive to our needs. They managed telemarketing effectively, ensuring clear communication and tangible results. A special mention goes to their Italian telemarketer, whose exceptional communication skills and ability to engage with our audience made a real difference. Highly recommended for anyone looking for a reliable, performance-driven partner.

Ansell

GSA demonstrated exceptional responsiveness to our evolving project demands and organisational needs. Julia adeptly understood our ideas and concepts and effectively captivated prospective leads with her exceptional telephone etiquette and strong communication skills.

The feedback and reporting provided by Kevin and Julia were incredibly insightful, enabling us to explore alternative avenues and make informed strategic choices.

I cannot speak highly enough of GSA for their blend of professionalism and personal touch in their engagement with our company. I wholeheartedly endorse their services.

Save Water Save Money
Jonathan and Kevin are incredibly knowledgable, patient and without doubt the experts in their field. They were fantastic at guiding myself and my colleague through a LinkedIn campaign and I was really pleased with the positive connections, conversations and brand awareness achieved.
The Film Farmers

The team at GSA were extremely helpful and professional, providing advice and thorough explanations on each part of the project we worked with them on. They took the time to meet with us face to face, to discuss the best way to approach the work, and were available to speak to whenever needed. Jonathan is a fountain of knowledge and went above and beyond to help us with any questions we had. It wasn’t the easiest project to work on but GSA helped every step of the way. Thank you!

U+I Global PLC

“We approached Jonathan Silverman to act as a facilitator and to provide strategic input to an Intranet development meeting held in the UK. I have worked with Jonathan previously on a number of marketing forums that required input in planning, facilitation, review of outcomes and strategic recommendations. Jonathan has an extremely broad knowledge of the world of marketing communications and it is this experience that enables him to lead discussion in such an authorative way. Jonathan also has an excellent understanding of global cultural sensitivities which was essential in planning our future global marketing strategies.”

G4S plc

“As a relatively new venture, Blue Bamboo Consulting called on Jonathan’s expertise to help us create a viable marketing strategy. During our meeting it became apparent that Jonathan’s input was far more valuable than ably fulfilling this specific brief. GSA was able to help us understand the technical options available (within the marketing piece), educating us as to the best routes to market with our burgeoning proposition; furthermore, we ended up with a template business development plan whereby all Jonathan’s insight into sales and marketing could be applied and, importantly, aligned to our particular vision. GSA went the extra mile to help us get what we wanted, sensitively and professionally challenging our expectations & goals. Excellent work – thank you!”

Blue Bamboo Consulting

“We started the session with an loose idea of how we wanted to progress our marketing campaign and what industries we wanted to target. By the end of the meeting Jonathan managed to turn me away from what I thought was the quickest and most direct approach! and also made me see the size of the mountain we had to climb. Sensing me thinking ‘oh-my-god’ he ensured we had the bare bones of practical approach for the climb and also let me know that I was supported along this journey. Jonathan managed to ensure that the ‘fluff’ of marketing was distilled into actionable tasks and offered an approach not just ideas.”

Systems company

“Thanks for the follow-up, I think it was a really useful day and my team have all come back to say they left the session “buzzing” with ideas! (You can use that as a testimonial from me if you’d like). I think there will be opportunities to repeat the session once we’ve made some progress towards delivery.”

Industry Association

“GSA was appointed to offer strategic advice and direction on mission and value statements, defining clear objectives for a major sponsorship partnership for the group. GSA was highly adaptable and focused on the project and quickly grasped the various dimensions of the partnership and the overall business objectives. Their management and interpersonal skills coupled with their enthusiasm for the project made them a valuable partner.”

Global Insurance Company

“I would like to thank you for the marketing time you have spent with us. The time with you is always interesting and mind blowing? How come we all stop seeing the obvious with our business? I would have no hesitation in recommending your company to people I meet who wish to take their business forward.”

Beauty Company

“Just a short note to say thank you for all the hard work that GSA has done for our business over the last couple of years. The team on our business has always been very in tune with the agency. We have found GSA to be very effective at representing us on the phone and in fixing new business meetings. I would be delighted to recommend your services to others and to use you again in the future.”

Advertising agency

“Ladbrokes. That’s exactly the sort of customer we want to get in front of!”

CRM vendor

“I hope all is well for you during these difficult times. I just wanted to tell you how pleased we continue to be with Laura. She is getting us appointments with decent companies and working hard on our behalf. Thank you for asking Laura to work with us, much appreciated.”

Financial Service PR agency
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