Industry Partners


  • ESP is part of a group of partnering companies. Through our partner companies we offer a host of other services…

    CTSI-facility management

    CTSI Facilities Management, a Chesapeake Tower Systems, Inc. company, is a diversified building services firm offering maintenance, engineering, operations, custodial services, grounds/landscaping services, and project management services to the federal and local government as well as to the commercial markets. We are the “Systems Thinkers in Facilities Management”. Our unique approach to managing facilities recognizes that independent building support systems are not independent at all. Rather, facility support systems are components of one fully integrated system, working together to provide an optimal occupancy environment for the facility user.

    The Fortress International Group (FIGI)

    Fortress International Group, Inc. is leading mission-critical facilities into a new era of uptime and efficiency. Through the combined knowledge and experience of Total Site Solutions and Rubicon Professional Services, two experts in critical faciities infrastructure, Fortress International provides Consulting and Engineering, Construction Management and 24/7/365 Site Services for the world’s most technology dependent organizations. Serving as a trusted advisor, Fortress delivers the strategic guidance and pre-planning that makes every stage of the critical facility lifecycle more efficient.

    Total Site Solutions (TSS)

    Total Site Solutions is part of Fortress International Group, Inc., plans, designs, builds and maintains specialized facilities such as data centers, trading floors, call centers, laboratories, medical facilities, network operation centers, communication and secure facilities. For nearly 30 years, the Total Site Solutions team has pioneered building robust and scalable infrastructure into mission-critical facilities. The firm offers unsurpassed expertise in the infrastructure systems (electrical, mechanical, telecommunications, security, fire protection and building automation) that are the critical facility’s lifeblood. Total Site Solutions comprehensive portfolio of services and multi-disciplinary expertise provide customers a highly respected single source for critical services that bridge the gap between IT and facilities.


    Vortech combines over 20 years of experience in Electrical and Cable Plant design and installation with value added Systems and Network Integration Services. Vortech’s goal is to provide customers and partners with a single source for the components on which reliable business solutions are built.


    From Riedon…for quality resistors that are essential in protecting electronic components from sudden current or voltage changes, visit

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