Our history.

Solutions that evolve with the business landscape.

Businesses are inundated with data concerning their customers whilst the processing, storage and usage of this data is increasingly protected by legislation. We aim to make compliance as simple as possible to allow you to do what you do best.

Formed by a team with a background in software development and data marketing, Syrenis Ltd came into being in February 2000. Using their first-hand experience of the challenges faced by businesses when handling personal data, Syrenis resolved to make things simpler.

Today, Syrenis is
a global leader in CMP & Stakeholder Management.

As legislation has caught up with technology, Syrenis has continued to refine and develop innovative products.

Through our flagship product, Cassie, we give organisations capacity to consolidate and centralise their consent and preference repositories into one single source of the truth. Our Stakeholder Relationship and Management Tool, SMART, gives organisations the ability to track and trace their relationships effectively with key internal or external influencers.

Headquartered near Manchester, an innovation hotspot.

Syrenis has customers across the globe and our products have touched millions.

From our highly skilled developers right through to our dedicated support specialists, the Syrenis team is committed to customer satisfaction. Our goal is to provide you with simple, user-friendly solutions to the complex issues of consent management and stakeholder engagement through constant innovation and outstanding customer support.

Our work is recognised as a leader in this sector by several analysts including Gartner, Forrester and KuppingerCole.

Our Solutions.


The Consent & Preference Management Platform.

Data centric Consent & Preference management platform that has no equal. Tracked by privacy analysts and used by some of the largest and most reputable organisations in the world. If you are serious about data privacy, click below to find out more.


Stakeholder engagement made simple.

Trusted by small and large organisations from Governments to one time projects, SMART is the stakeholder tool of choice for many. Ensure your message is received by the right people at the right time with the right information. Guaranteed.

Trusted by...

Syrenis software is trusted by and powers many leading enterprises and governments across the globe including:

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