HubSpot Integrations & API Development

Streamline your business operations with HubSpot’s intuitive integration and API services.

Our team of experts utilise decades of HubSpot experience to bring ease and efficiency to your operations. By connecting all your tools and platform to one hub, we offer a sustainable and future-proofed approach to CRM integrations.

Our clients


Key features



With guidance from our experts, your teams can soon master HubSpot’s intuitive integration and APIs.

We offer ongoing support and maintenance to craft a sustainable and future-proofed strategy.



The modular nature of HubSpot makes it possible to create a dashboard perfect for your business needs.

Allow your data to take the driving seat and significantly boost efficiency and productivity.



Utilising the advanced automation features inside HubSpot is the key to unlocking the full potential of the platform.

Simplify your platforms with HubSpot’s integration with everything; LinkedIn, Salesforce, Slack, you name it. 

Essential Statistics

We understand the power of HubSpot and its potential to transform business performance.

After full integration to your business, the results speak for themselves.


More deals per month

Customers harnessing HubSpot’s innovative tools are seeing significantly more results per month.


Higher deal close rate

Sculpting HubSpot’s intuitive Sales Hub to work for your business is key for driving deals.

Their support and professionalism on this project was unmatched and they made the whole process as smooth and easy to manage as possible for a very small in-house marketing team.
Cat Cetnik
I’m really pleased with the way we all worked together and that the project was managed so well, launched on-time and the final website has exceeded expectations.
Estelle Marasigan
We had the pleasure of one of Karman Digital's Trainers coming out to our offices last week to give us training on HubSpot Sales and an overview of HubSpot Marketing. The whole team enjoyed the training sessions and came away very motivated at the potential HubSpot can bring to us.
Manoj Patel
The work Karman has done has given us a new found confidence to recruit more franchisees for our business in the online space. They are HubSpot experts and are always happy to help. We'd highly recommend their services!
Lydia Jenkins
The Alternative Board
Exceeded our expectations. Their approach and attention to detail is exceptional, and we have therefore decided to extend our partnership with Karman through further digital marketing support across our business.
Lisa Havdahl
Corndel College London
Karman Digital have done a great job. Our old website was on its knees and simply could not keep up. Karman have made what could have been the tortuous process of design and content creation seem slick, quick and easy.
Adam Wilson
HubSpot is incredibly easy to use and the custom modules we had developed have made our lives as a marketing team much easier. Thank you and here's to phase 2!
Tamsin MacCormack
Synectics Solutions
Really strong direction on how we can integrate HubSpot into the heart of our sales and marketing experience. The team are passionate about how we can drive all our activity efficiently from a single platform. I wouldn't hesitate in recommending them.
T McGowan
Active Business Comms
Having worked with them on a number of projects I have been very impressed with the high standard of work produced every time. Excellent account management, attention to detail and responsiveness make them a pleasure to work with.
Alice De Courcy

Our work in this area


The well-known travel comparison site engaged with us to build their new B2B partnership website on HubSpot.


Transforming the website into a user-friendly platform, driving leads and measurable ROI.


Delivering a fresh new multi-language site comprising over 200 webpages.


The well-known travel comparison site engaged with us to build their new B2B partnership website on HubSpot.

The Mission

Skyscanner wanted to celebrate their 20th anniversary in style with a new web design, rebrand and build on the HubSpot CMS.

The Project

Collaboration was at the heart of this successful build, which saw us work with Skyscanners design agency like they were an extension of our own team.

The Result

Using our deep HubSpot and development expertise, we delivered a functional website that honoured Skyscanner’s vision and brand.

Aligned sales, service and marketing teams

Each team has the same data and tools at their disposal to improve sales and marketing and enhance the customer experience.


Transforming the website into a user-friendly platform, driving leads and measurable ROI.

The Mission

We partnered with activpayroll to modernise their website, addressing issues with the CMS and inconsistent styling to enhance user experience and drive traffic.

The Project

Collaborating closely, our goal was to transform the website into a user-friendly platform, driving leads and measurable ROI.

The Result

Our A/B testing led to a remarkable increase in conversions, with strategic CTAs and streamlined forms boosting rates from 1.79% to 3.02%

Increase in conversions

By carrying out A/B testing and analysing user behaviour, we were able to transform activpayroll’s website so it would offer a better user experience and drive more conversions.


Delivering a fresh new multi-language site comprising over 200 webpages.

The Mission

Our goal was to furnish Cognism with an agile, user-friendly website that mirrored their evolving brand and bolstered their growth objectives.

The Project

Working closely with Cognism and their branding agency, Pentegram, we collaborated to build a new HubSpot website that was ready for growth.

The Result

Following a 12-week implementation period, we delivered a multi-language site comprising over 200 webpages, seamlessly assimilating into Cognism's fresh branding.

Increase in site visitors

Cognism’s site visits rose by 200% in the first eight weeks after our developments were put in place.

“We found the team easy to work with, with clear timelines.

We like to move quickly and give regular feedback, which we were able to do. The team were very receptive to our feedback and understood what we were trying to achieve. They would listen to out input and ideas, whilst also providing value expertise and recommendations.”

Tom Phillips

Head of Business Development

Want to learn more?

Book a meeting today or please leave a message and we will be in touch.