Series B Marketing tech companies in London

Tools for marketers: CRM, attribution, content, ads, growth, and analytics. Filtered to Series B-stage companies headquartered in London.

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Built from a search like: “Top Series B Marketing tech companies in London”

Ranked by current headcount across Series B Marketing tech companies in London. Refreshed monthly.

1
Attest· London, England, United Kingdom
Attest is the AI consumer insights engine for global B2C brands. Designed for decisive, insights-driven teams who need to act without doubt or delay.In an environment where decisions are made under constant pressure, data quality must hold up. Attest is built on AI that earns its place, validated human responses, and expert partnership that teams can rely on. The result is insights that stand up to scrutiny and keep teams moving forward with confidence. Own the consumer truth.Define what happens next.Know it now.*We're aware of some scam job ads by people pretending to be from Attest. Here's some more information on this: bit.ly/CareersMessage
- Series B
- 117 employees
- Founded 2015
2
Mention Me· London, England, United Kingdom
We find your strongest customer voices and amplify their authentic human influence, giving your brand relevance and control in an AI marketing world.Since 2013, we've delivered more than USD $2bn in revenue for 500 brands, including Charlotte Tilbury, Farfetch, Nutmeg, Pret a Manger and PUMA. This vision is supported by our fast-growing partner network, which includes Emarsys, Ometria, Klaviyo and Trustpilot. Backed by Octopus Ventures and Eight Roads, we’ve raised $32 million in funding since 2018.To learn more, visit mention-me.com or find us on the SAP store.
- Series B
- 93 employees
- Founded 2013
3
Dragon Trail International· London, England, United Kingdom
Founded in 2009, Dragon Trail International is a marketing solutions company with roots in China and extensive experience in the global travel and MICE industries.We create digital solutions to propel your expansion into new markets, connecting you with new customers and partners. The company is headquartered in Beijing with offices in Shanghai, Xi’an, and London.
- Series B
- 42 employees
- Founded 2009
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4
Yieldify· London, England, United Kingdom
Yieldify is a personalization platform that helps marketers unlock more revenue by engaging their customers with personalized experiences.In the last 4 years, more than 1000 ecommerce brands in North America, Europe and Asia-Pacific have generated over $2.5 billion in extra revenue with Yieldify’s service team and platform.With Yieldify, you can serve the right messaging at the right time and give every visitor a more satisfying onsite experience - no matter where they are in your funnel.
- Series B
- 25 employees
- Founded 2013
5
Adbrain· London, England, United Kingdom
Adbrain powers marketers and their partners to understand and engage with their customers with a personalized, consistent message across devices, channels and platforms.Adbrain is part of The Trade Desk.
- Series B
- 11 employees
- Founded 2012

6
Videoplaza· London, England, United Kingdom
Videoplaza is now officially Ooyala. Follow us for all future updates on adtech and the future of TV at Ooyala's company page: https://www.linkedin.com/company/ooyalaVideoplaza, an Ooyala company, empowers broadcasters and video publishers to build profitable and sustainable businesses in the internet-delivered TV world. More than 50% of the broadcasters in Europe run their advertising businesses on Karbon. Videoplaza's technology, built for video, is device agnostic and empowers publishers to trade across sales channels, maximising the value of their audiences. Due to the belief in valuing service equally to technology, Videoplaza have local teams in London (HQ), Stockholm (R&D), Berlin, Cologne, Madrid, Paris, and Singapore.
- Series B
- 10 employees
- Founded 2007
7
Getmemedia.com· London, England, United Kingdom
Getmemedia.com is a business run by marketers for marketers and their agencies. Our aim is to help you create the best marketing campaigns for your brands.Firstly, we have an in-depth database of live ideas and case studies, which you can search to find those most inspiring and relevant to your brand’s requirements. It includes great advertising opportunities for TV, Radio, National Press, Local Press, Magazines, Internet, Mobile, Cinema and Outdoor as well as PR, Direct Marketing, Experiential, Events and more. We can give you free access to a whole directory of media, marketing and sponsorship ideas and even provide a briefing service to gain tailored responses to your brief from a selection of media agencies.In addition to this we also offer bespoke training and consultancy services from our industry experts.Simply start searching, or submit a brief and let us do the hard work. Still got a question? Give one of our media experts a call today on 0845 0557269
- Series B
- 6 employees
- Founded 2006
8
Ascendant Communications· Richmond Upon Thames, England, United Kingdom
Whatever your business, our integrated B2B public relations and communications programmes produce results that build brands, transform market perceptions, and drive sales.From insightful thinking to tactical implementation, we help you overcome the challenge of being seen and heard in today’s crowded market place. So your message reaches the right audiences – first time, every time.No matter which industry you work in – public sector, green energy, technology, or financial services – and regardless of how big, or small, you are, we deliver game-changing PR that covers the online and offline worlds.Whether it’s breaking news, a powerful customer testimonial, positioning your thought leadership and expertise, or kick starting your social media presence, our strategy-led approach to PR ensures everyone — from opinion shapers to key decision makers in your chosen markets — hears you loud and clear.
- Series B
- 3 employees
- Founded 2003

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Find engineers at Series B Marketing tech companies in London

Searching for “engineers at top Series B Marketing tech companies in London” surfaces this slice of the market. The list above ranks Marketing tech companies headquartered in London whose latest disclosed round is Series B, by current headcount, drawn from public LinkedIn and Crunchbase records. With 8 matching companies in Refolk’s index, this is a tight read on where the Marketing tech talent in London is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series B, Marketing tech, in London - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Marketing tech’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Series B Marketing tech companies in London hiring” or “founders of Series B Marketing tech companies in London who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.

How this list is built

Refolk pulled Marketing tech companies headquartered in London whose latest disclosed funding round is Series B from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes monthly.

Last refreshed: Fri, 21 Aug 2026 16:55:56 GMT

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