- Cooper Leder Marketing, Inc
 - Great Neck - Full service marketing and communications agency. - Garvan Communications
- Hicksville - Provides advertising, corporate identity programmes, direct marketing, digital imaging, speaker support and interactive multimedia programmes.
- International Marketing Systems
- Huntington - Professional sales representation, customer development and post sales support services on behalf of its strategic alliances and partners.
- Savant Creative Group
- Advertising agency and marketing consulting firm offering website design, commercial photography, search engine optimisation, search engine marketing, branding, and logos.
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