Sia/Addison

Design ServicesNew York, United States201-500 Employees

Sia/Addison is a design services firm based in New York City, offering six integrated areas of work: branding, content creation, financial marketing, simplified experiences, stakeholder communications, and sustainability and CSR. Its diverse team includes designers, content creators, digital storytellers, and developers who collaborate to deliver strategic communications across multiple channels. The emphasis is on aligning creative output with structured messaging to support brand-building and corporate responsibility initiatives.

The company serves a varied client base across industries, with partnerships that have included Emory Healthcare Hospital Group and Nintendo. In 2022, Addison Design Company was acquired by Siapartners, expanding its digital marketing capabilities, and in January 2024 the firm opened a storefront in Texas as part of geographic expansion. Based in New York, Sia/Addison is a mid-sized firm with a broad, multidisciplinary team capable of handling comprehensive branding and communications programs.

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