• Intro
  • Global Presence
  • About
  • Numbers
  • Subsidiaries
  • Leadership

High-Performance Bespoke
Electronic Technology for

Mission Critical Applications

A global provider of high-quality, ultra-reliable electronics for Defense, Commercial and Industrial applications, Gresham Worldwide is steeped in history but operating in nascent emerging technology markets. We acquire, invest in, and build companies to deliver dynamic growth through high-tech, high-touch manufacturing serving the world’s most demanding customers.

With operations across 3 continents and unparalleled capabilities in RF, power and systems electronics for mission critical applications, Gresham Worldwide is uniquely positioned to design, develop and deliver custom, purpose-built solutions for operation under the most demanding conditions when failure is not an option. 

Our leading-edge technologies are on the forefront of applications such as NextGen EW, UAVs, 5G/6G Telecomm, and ADAS, earning Gresham Worldwide the role of trusted supplier to defense ministries, defense contractors, and leading technology integrators worldwide.

Who We Are

An operating company, Gresham Worldwide utilizes synergies... READ MORE

Who We Are

An operating company, Gresham Worldwide utilizes synergies across subsidiaries in the U.S., U.K. and Israel, to design, engineer, manufacture, integrate and maintain bespoke electronics and solutions for customers around the world.

Whom We Serve

Gresham Worldwide has built long-term relationships... READ MORE

Whom We Serve

Gresham Worldwide has built long-term relationships with the leading corporations in the Defense, Industrial and Medical markets. Our customers include the US Department of Defense, BAE Systems, Lockheed, Raytheon, Boeing, Saab, Johnson & Johnson and IAI.


Gresham Worldwide maintains design competencies across all relevant ... READ MORE


Gresham Worldwide maintains design competencies across all relevant global compliance standards including MIL-STD, RTCA, NAVSO, STANAG (Europe), DEF-STANS (U.K.) and IEC. Gresham Worldwide's manufacturing operations hold ISO 9001:2015, ITAR and AS9100D quality certifications in addition to clean room and national security clearance manufacturing capabilities.

Strategic Growth

Gresham Worldwide is founded upon, and fueled by... READ MORE

Strategic Growth

Gresham Worldwide is founded upon, and fueled by, complementary strategies of accelerating organic growth and acquiring like companies that serve our target markets with bespoke electronics solutions. Adding and investing in technology providers serving our core markets, Gresham strives to accelerate sustainable growth and unlock synergies across our operating subsidiaries to better serve our customers.

Gresham Worldwide – At a Glance


Number of countries whose navies rely on technology from Gresham Worldwide


Combined years of experience among Gresham Worldwide’s operating subsidiaries


RF devices designed, manufactured and supplied by Gresham Worldwide


Sample MTBF hours on Gresham Worldwide RF product design


Number of continents on which Gresham Worldwide operates facilities and serves customers

Gresham Worldwide Operating Subsidiaries

Microphase Corporation,
Shelton, CT — USA

Founded in 1955, Microphase Corporation pioneered the market for advanced radio frequency (RF), millimeter wave and microwave components and filter technology, Digital Log Video Amplifiers and integrated RF assemblies used by the US Department of Defense and global defense contractors. With expertise across a half-dozen filter construction types, Microphase’s bespoke RF solutions are used in radar warning, electronic warfare, C4ISR, and video applications for both new and sustainment programs.

  • Deep domain expertise in filter construction approaches, including lumped element and cavity, to support tailored designs and system performance
  • Substantial design and integration capabilities to bundle RF filter technology, power circuitry, and enclosure systems for use in harsh environments

Visit the Microphase Corporation website

Enertec Systems
Karmiel, Israel

For over thirty years, Enertec Systems has provided design, engineering, manufacturing and systems integration of turnkey electronic solutions for the defense and medical industries. Experts in automated test, missile launch, electronic warfare, C4ISR and medical device applications, Enertec’s deep subject matter knowledge and thorough understanding of Systems Under Test (SUT) make us a trusted partner for defence ministries worldwide.

  • One of the industry’s broadest portfolios of existing test equipment sub-system designs, allowing for timely and cost-effective tailoring to meet customer needs
  • Full complement of in-house design capabilities including, but not limited to, software; firmware and hardware for electronic circuits; I/O, communications, data-link and power supply circuitry; FPGAs and wireless

Visit the Enertec Systems website

Gresham Power Electronics
Salisbury, U.K.

Leading provider of bespoke power conversion and medium voltage electrical systems for military marine and land-based defense markets as well as rail, industrial and medical applications.

Unparalleled subject matter knowledge of shipboard electrical systems with focus on novel electrical design approaches marrying power supply units, power switching circuit designs, battery back-ups and uninterruptable power systems to customer applications.

Visit the Gresham Power Electronics website

RELEC Electronics, Ltd.
Wareham, U.K.

Full line distributor of top-tier power electronics and display solutions for mission-critical applications for the rail, industrial, medical, telecom and defense markets.

Visit the RELEC Electronics website

Leadership Team

Jonathan “J.R.” Read,
Chief Executive Officer

A proven leader and CEO with experience running global business operations, J.R. has extensive expertise in M&A, financing, public company management, and licensing. He has served as Chairman and/or CEO of ECOtality, TeraForge Ventures, Quadratum 1, and Shakey’s International among others and presently serves as a Director for TeraForge. He holds a degree from Claremont McKenna College.

Timothy Long,
Chief Operating Officer

A versatile executive with 40 years of experience, Tim’s expertise includes responsibilities in the defense sector, operations management, corporate development, strategic communications, business planning, marketing and law. He has held executive management roles with MCI, Litton, Northrop Grumman, Acquisition Solutions and Boost Payment Solutions and currently serves as a Director for PowerGrow, Inc. He holds a BA from Old Dominion, a J.D. from University of Virginia and is a Member of the Bar in the District of Columbia.

Robin Shaffer,
Chief Innovation Officer

An experienced technology executive, Robin has held executive management roles within a variety of organizations ranging from Fortune 100 to venture-back start-ups including Johnson Controls, Eaton Corporation, ClearEdge Power, Zeus Wireless, Sunverge and Align Infrastructure. His 35-year experience spans multiple technical sectors including sensors and automation, wireless, energy (including renewables, storage and distributed generation), automated material handling, engineered polymers and HVAC. He holds a BSEnvE from Cal Poly SLO and an MBA from Marquette University.

Sean Lyle,
Chief Development Officer

Sean has over 20 years of management experience in technical industries including Software, Energy and Agribusiness and most recently served as President & CEO of PowerGrow, Inc. and of Energy Surety Partners. He has held senior development roles with Solon, Siemens and Statera, and he is a LEED AP and member of BENS (Business Executives for National Security). Sean earned a BS in Business Administration from the University of Wyoming.

David Katzoff,
Chief Financial Officer (acting)

A savvy financial engineer with meticulous attention to detail with specific expertise in sound fiscal management, risk mitigation, financial reporting and resource development.