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Trust centre: attestations and recognitions

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Our marketing and communication department can only do so much to show you that SD Worx is a reliable payroll and HR partner. Even more, independent attestations and recognitions often speak louder than any customer testimonial. That’s why we’ve created this Trust Centre with our most telling credentials.

SD Worx … a story of trust

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Payroll isn’t just an essential business function, it plays a vital role in your culture as well. On top of that, payroll-related data have become one of the most important assets in a company. Payroll processing, however, doesn’t have to be time consuming and complicated. Not with an experienced payroll partner like SD Worx. Our leading payroll services and powerful payroll technology are subjected to regular independent reviews to demonstrate how we succeed at sparking success in the heart of your business.

ISAE 3402

ISAE 3402 attestation

The widely recognised ISAE 3402 standard issued by the International Auditing and Assurance Standards Board (IAASB) is an assurance standard developed specifically for outsourcing activities that are related to processes with a financial impact, such as payroll. SD Worx doesn’t stop there. We also cover a set of key IT supporting processes to provide you with an end-to-end view over the services we deliver. On an annual base, an independent auditor assesses the quality of our (payroll) outsourcing services. The subsequent ISAE 3402 report discloses all control activities and processes, including the auditor’s opinion.

SD Worx issues annual ISAE 3402, type 2 reports over selected payroll products and services. The report not only includes the service description of the controls, but also confirms we have executed the controls correctly over a certain period of time.

Already an SD Worx client?
Please reach out to your SD Worx contact for more information on obtaining the ISAE 3402 report.

Considering to become an SD Worx client?
ISAE 3000

ISAE 3000 attestation

ISAE 3000 is an international standard for assurance over non-financial information. It is considered the go-to standard to demonstrate compliance with GDPR. Moreover, attestation confirms SD Worx has established all required data security and privacy controls to cover the GDPR principles.

SD Worx has obtained an ISAE 3000, type 1 attestation for its payroll services, demonstrating our internal control framework is designed to meet the strict GDPR requirements.

Already an SD Worx client?
Please reach out to your SD Worx contact for more information on obtaining the ISAE 3000 report.

Considering to become an SD Worx client?


Decades of experience and a diverse team of motivated experts have culminated in an offering of first-class payroll and HR solutions. To illustrate, our solutions are often cited by other organisations as industry benchmarks. A brief selection.


Gartner, a global research and advisory partner, lists SD Worx as a representative vendor in its 2021 Market Guide for Multi-country Payroll Solutions and its 2021 Market Guide for Workforce Management Applications. Moreover, Gartner positions SD Worx in the Leaders Quadrant for Payroll Business Process Outsourcing Services.


Research and analysis firm NelsonHall identifies SD Worx as a leader in its 2021 NEAT vendor evaluation for payroll services as well as for workforce management. In 2020, SD Worx got the same recognition for cloud-based HR transformation.


In the 2021 PEAK Matrix Assessment by global research firm Everest Group, SD Worx is a major contender for multi-country payroll solutions as well as for multi-process HR outsourcing.


Quadrant Knowledge Solutions considers SD Worx a technology leader on its 2020 Multi-Country Payroll Platform.