Contact

For all inquiries related to your account credentials (login / password ), document updates, or any personal information, please contact us directly by email.

Headquarter

- 123 Fifth Ave, New York, NY 12004. United States.
- 20-22 Wenlock Road, N1 7GU London - United Kingdom

Call Us

(+1) 120 406 90 90 (+44) 791 607 60 45

Email Us

contact@sigmaholdings.uk

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True excellence is not declared — it is earned through integrity, clarity, and a commitment to raise every standard. At Sigma Holdings, we build that excellence worldwide.

Clara Michelle

CTO of SIGMA HOLDINGS

Our Commitment

At Sigma Holdings LLC, we are committed to delivering transparent and ethical services

Globally verifiable accreditations & certifications, and fast, reliable processing supported by advanced AI-powered verification systems. With strong international compliance and quality standards, we continuously evolve to meet the demands of a rapidly changing world—empowering institutions, professionals, and organizations to achieve excellence on a global scale.

Contact Us

Delivers trusted global accreditation, professional certification, innovative verification systems, AI-enhanced quality solutions, expert accompaniment, international branding support, and the management and establishment of worldwide bodies across all sectors of expertise.