Does horizon city manage or provide utilities services? The Town of Horizon City does not manage or provide utilities services to its residents. For your convenience, below is a list of the Utilities Companies that currently service Horizon City residents.How do i contact horizon therapeutics customer service? For any other inquiries, please call 1-866-479-6742 (Option 2), email [email protected] or submit the below form.Why choose horhorizon phone service? Horizon phone Telephone service has evolved considerably since the first phone call in 1876. Horizon has been on the leading-edge of the telecom industry since its inception and continues to offer reliable telephone service with clear connections. Clear and reliable connection, even when the power goes outHow do i contact horizon organic? Thanks for contacting us. We appreciate your outreach and will respond to your question or concern as quickly as possible (within 2 business days). To speak with someone live at Horizon Organic, please call our toll-free number at: 1-800-441-3321 Mon – Fri 8:00 AM – 5:00 PM Central.