Sonum International’s OneStream practice to operate under new name ‘AIQOS’ amid strategic investment from Keyrus Group

The Hague (The Netherlands) – 20 January 2023: Sonum International, a leading consultancy firm providing specialized EPM consulting services, has reached an agreement with Keyrus Group to join forces. As a result of this, the OneStream practice of Sonum will continue to operate as an independent company under the new brand name “AIQOS” as of the 1st of February, 2023.

With a history of successfully partnering for over ten years, Keyrus and Sonum International see this next phase as a natural evolution and a way to further strengthen the combined team’s offerings and geographical coverage for the benefit of their clients in the EPM space.

AIQOS will be 100% focused on OneStream related services. The full OneStream team will continue under the AIQOS brand. This international team consists of 85 consultants representing 25 nationalities; among them are the people who in 2013 delivered the second OneStream implementation in EMEA. AIQOS has offices in The Netherlands, United Kingdom, South Africa, Denmark, Singapore, India, Philippines, Spain, and Germany.

Sonum International

Sonum International has been successful as a multi-platform EPM consultancy vendor since its launch in 2010. In 12 years, Sonum has grown into a renowned team of more than 150 people with offices in 14 countries and with the status of Anaplan Gold Partner and OneStream Diamond Partner. With this split, both companies take these partnerships to the next level.

Maud Vermeulen, co-founder of Sonum International: I’m proud and excited to see that our focus on people, quality and delivering value for our clients has led to the growth that enables us to take the next step as two separate companies, each with an increased focus on our respective domain within the EPM market.


Keyrus, an Anaplan Global Partner and Anaplan’s 2021 Americas Partner of the Year, has a strong presence in the connected planning industry and has built a globally integrated team of EPM consultants in the United States, LATAM, Europe, and APAC. They have served over 200 unique clients and delivered tailored solutions spanning multiple use cases, often across different areas of the business.

AIQOS: new brand, the same passion

Roy Piek, co-founder of AIQOS: “AIQOS is 100% OneStream Software committed! We share a passion: simplifying complexity, implement OneStream Software, train & educate users, and support our clients through managed services.” With the new brand name, we also launch a new website, and a new LinkedIn page. We maintain the status of OneStream Diamond Partner and Authorized Training Partner.

We are grateful for the cooperation that has brought us this far, and of course the trust of our colleagues, customers, and partners. Looking ahead, we are convinced that this is the best step for our future and that with this change we will continue to create the most added value for our stakeholders in the future. 

Sonum International

Maud Vermeulen



Roy Piek


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The Keyrus Group enters the final phase of making a strategic investment in Sonum International – a European EPM leading player and a specialist in Anaplan®.

The Keyrus Group enters the final phase of making a strategic investment in Sonum International – a European EPM leading player and a specialist in Anaplan®.

This investment takes the Keyrus EPM Practice global and strengthens its ability to offer clients in all regions a wide range of services and solutions to manage their performance across the value chain.

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