SDMC is a full-service digital marketing technology company in Hong Kong specializing in SEO. By leveraging insights from big data, analyzing search engine metrics, and studying user behavior across industries, we deliver online marketing solutions that are
(1) Goal-oriented, (2) Tailor-made, (3) Sustainable optimization of online marketing solutions

Our online promotion services are comprehensive and continuously evolving. In recent years, we have launched innovative services such as GEO (Generative Engine Optimization); integrating AI platforms into digital strategies, and"Outbound SEO"- a service designed to enhance global online visibilityand create new business opportunities for Mainland and international enterprises.

Over the years, SDMC has collaborated with prominent organizations such as theHKFSDC、HKSTP、SF Express、HKUSTalong with more than a hundred other companies. We are also recognized as an official service provider by theHKTDC and a certified Google Partner. Our extensive experience and commitment to excellence have earned the trust and confidence of our clients.

Recognized Marketing Agency Partners

SDMC is a Weimob-badged digital marketing agency in Hong Kong.

HKRMA has partnered with many digital marketing agents and SDMC is one of them.

SDMC is a valuable HK digital marketing agency partner of HKGCSMB.

SDMC is a digital marketing agency in Hong Kong recognized by HKPC.

Awards

SDMC is one of the best digital marketing agents in the Greater Bay Area.

SDMC is a socially responsible HK digital marketing agency as qualified by the Partner Employer Award.

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Our Four Key Principles

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Complete & Reliable

Whether for our clients, partners, SDMC members, or community, SDMC is a trustworthy digital marketing SEO company — a strategic expert dedicated to creating win-win solutions with all stakeholders.

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Service Excellence

SDMC strives for progress and global alignment, leading with forward-thinking marketing strategies to meet market challenges. “Think locally, act globally” reminds us to stay positive.

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Commitments

We honour and deliver on our service commitments to clients, providing high-quality digital strategy services so that you can confidently expect our team to deliver results for your business.

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Long-term Collaboration

As a renowned SEO company, SDMC values partnerships and respects interests of all parties. Through mutual support and reciprocity, we grow together with our partners, clients and community.

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HK SEO Specialist - Comprehensive Digital Marketing Solutions

SDMC aims to help clients expand their digital presence and elevate brand image through customized services—including the latest GEO and Outbound SEO solutions—dedicated to boosting exposure and sales opportunities.

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Meet Our Co-founder

Mr. Chris Tam

Co-founder, SDMC

Chris Tam brings extensive experience in digital marketing and business solutions. Over the past decade of his leadership, he has elevated SDMC into a renowned Hong Kong SEO company, delivering performance-driven, high-end digital marketing solutions for enterprises and SMEs alike. These services encompass professional local SEO, various online advertising campaigns, social media management, and cutting-edge offerings like GEO (Generative Engine Optimization), Outbound SEO, and China market marketing strategies.

SDMC's clients span multiple industries, including: HKTDC, Centre for Health Protection, Citibank, China Mobile, HKT, Double A, City’super, Vitagreen, GogoX, and Daiso Life Supermarket. 

Additionally, Chris is frequently invited to speak at digital marketing seminars organized by local universities, non-governmental organizations (NGOs), multinational corporations, and professional associations, where he shares industry insights and practical experience while actively providing the most effective digital marketing strategies to diverse institutions.