For Employees


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For Employees

This page provides internal tools and support for employees of Leidos, including access to Horizon, Prism, Deltek T&E, Outlook Web Access, IT Service Desk support, ethics training, and more. A Leidos username/password is required to access these resources.



Horizon: The Leidos Employee Intranet
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Horizon is the Leidos intranet and was created to facilitate company-wide communication and knowledge sharing. Our intranet contains information and tools for Leidos employees.

Prism: Social Collaboration

Prism is the social business solution for internal communication and collaboration among Leidos employees.

Outlook Web Access

Connect to Microsoft Exchange remotely to access your Leidos email messages from your web browser.1

Deltek T&E

Record your time and submit expenses using Deltek T&E, our web-based time-recording and expense system.

Additional Employee Resources

Links to additional resources are listed below. These contain links to benefits information, stockholder resources, training, and more.

  • Leidos Benefits and Forms
    Leidos employees and their family members may download commonly used Leidos benefit claim forms and view information about updating benefits elections.

  • Leidos Stockholder Services
    The Stockholder Services section contains news and contact information to assist you with your shareholder and retirement needs, as well as answers to frequently asked questions regarding your stock ownership.

  • Employee Service Desk
    The Leidos IT Service Desk is a centralized support center for computing resources and information needs. If you are a Leidos employee and need help with a Leidos application, please contact the Service Desk.

  • Web Conferencing
    This tool allows employees and customers to share PowerPoint, Excel, and Word presentations with multiple users via a web browser.

  • Access Payroll Self Service Portal
    Get convenient online confidential access to your pay data, direct deposit, tax withholding, deductions and annual statements through the Payroll Self Service Portal. Though this resource is not managed by Leidos, help is available on Horizon.

  • Download Remote Access Software
    View instructions for download and use of the VPN & Remote Access Software.

  • Travel Services
    Leidos Travel Services is staffed by dedicated Leidos employees who are experienced professionals ready to serve.

  • Ethics Training
    This site provides information on the Ethics Awareness Program and the various ways a Leidos employee can take the ethics training.


Technical Support for Outlook Web Access

1 Users of this service will only be able to access email messages on the Microsoft Exchange server and will not be able to access those filed in personal folders. If you are experiencing problems, please contact the Leidos Service Desk at Domestic: 855-9-LEIDOS (855-953-4367); International: 00 + 1 + 865-481-1780.

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The Leidos Service Desk is a centralized support center for computing resources and information needs.