Contact Us


Our goal is to offer the best service in the industry. Please feel free to contact us at any time for answers to your questions, to consult our professional staff, or to request in-depth information.

Please feel free to use the automated email to send a message for any questions, requests, and assistance. We will ensure that it reaches the right person who will address your needs promptly.

Corporate Contact Information

Sumitomo Electric Lightwave Corp.
201 South Rogers Lane, Suite 100
Raleigh, NC 27610

General Phone Inquiries: 800-358-7378 or 919-541-8100

Customer Service

Whether you have a question, require a quote, or need information, our customer service staff is ready to assist you.

Phone: 800-358-7378 and ask for Customer Service or send us a message via the automated email to the right of this page.

Fax: (919) 541-8265

Marketing & Communications

For news inquires, press releases, articles, case studies, or product/solutions-related collateral, please contact our marketing and communications department. We’re here to assist you.

Phone: 800-358-7378 and ask for Marketing Communications or 919-541-8121

Corporate Governance

SEI’s Code of Conduct sets forth the Company’s expectations that its employees conduct business in accordance with the Sumitomo Spirit and high ethical standards.  The Company encourages employees and contractors to report suspected violations of the Code and company policies and provides several avenues for reporting. One example is SEI’s Hotline, which anyone may use to anonymously report suspected policy violations.

External Point of Contact:

Expolink Europe Ltd.
Phone: 1-877-533-5310
Email address:

Address: Expolink Europe Ltd. 1 Greenways Business Park, Bellinger Close, Chippenham, SN15 1BNUnited Kingdom

Whether reporting is made to a manager/supervisor, Human Resources, a Compliance Liaison, the Legal Department, or the Hotline, SEI’s policies prohibit retaliation, either for reporting in good faith or for cooperating in an investigation of a suspected violation. Click here for more information.