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energySEA is a proudly Australian-owned, ISO accredited engineering company based in Sydney, Australia, with a strong presence across Australia and New Zealand. We are committed to supporting the local industry through local project delivery, Australian-based engineering, and a robust network of trusted global partners.

Our partners represent the world's best brands in high voltage infrastructure, from grid studies, component design and supply.

Our local operations encompass engineering, procurement, construction, installation, testing and commissioning, ensuring complete lifecycle support to clients across the utility and renewables sectors.

Our
Story

Get to Know Us

Founded in 2017 by a long-time industry stalwart, our journey began as a specialist equipment supplier with a clear philosophy: to help our customers, to work with best-in-class manufacturers and represent products that safely meet the highest standards of performance, reliability, and innovation.

In our early years, we proudly represented Sumitomo Electric for power cables and Maschinenfabrik Reinhausen for power quality solutions. By 2019, driven by client demand and our own commitment to technical due diligence, we began developing our EPC capabilities, expanding our offering beyond supply to deliver truly end-to-end solutions.

This evolution was shaped by the trust our clients placed in us. In 2023, we secured our first full EPC substation project at Kingaroy, including harmonic filter solutions. In 2024, we expanded our portfolio by representing the Trench Group across Australia and New Zealand, including HSP Hochspannungsgeräte GmbH.

In 2025, we further expanded our portfolio including Coelme-Egic and HIGHVOLT Prüftechnik Dresden GmbH. This further reinforces our commitment to technical excellence across the high-voltage infrastructure.

Today, we stand as a trusted engineering partner, delivering integrated, end-to-end solutions backed by deep technical expertise, global partnerships, and an unwavering focus on quality.

What We Do

We offer best-in-class products and services related to high voltage infrastructure.

Leadership Team

Managing Director

Anthony JOHNSTON

Anthony Johnston is a senior executive with decades of experience across the energy, infrastructure, and power systems sectors. He holds a Bachelor of Electrical Engineering from the University of Sydney and an MBA from the Macquarie Graduate School of Management.

Throughout his career, Anthony has held a number of senior leadership positions, including Executive Sales Manager at Siemens Ltd, Executive General Manager at UGL Limited, Executive General Manager at Downer Utilities Australia and Managing Director at Schletter Australia. His leadership spans OEMs, EPC contractors, and utility-focused organisations, giving him a unique, end-to-end perspective of the energy value chain.

Anthony has played a pivotal role in advancing Australia’s renewable energy sector, including starting the solar EPC business in 2016, contributing to the development and delivery of major projects such as Sunshine, Clare, and Ross Solar Farms, as well as the Murra Warra Wind Farm. His experience includes grid connection, power systems engineering, and the integration of large-scale renewable assets.

Anthony brings strategic leadership, technical depth, and commercial insight to every organisation he supports.

Project Director

Garry PITSTOCK

Garry brings over 40 years of proven leadership across project management and business operations in the energy, water, and oil & gas sectors. He has successfully led multi-discipline turnkey contracts valued up to $500 million, including renewables, power generation, and power systems projects, as well as overseeing the realignment of complex multidiscipline projects.

In addition to his project expertise, Garry has extensive experience managing businesses with full P&L responsibility, driving Zero Harm initiatives, shaping strategic direction, setting vision for high-performing teams, assessing risk, and nurturing long-term client relationships. His combination of operational excellence and strategic leadership has consistently delivered results across large-scale and technically complex projects.

Operations Manager

Jenny SUNIATI

Jenny Suniati is a fully qualified CPA Australia accountant with a Bachelor’s and Master’s degree in Accounting. She brings extensive experience in building and leading high-performing finance teams, driving operational efficiency, and maximizing business performance through robust financial planning and analysis.

Her expertise spans cost analysis and control, cash flow management, KPI monitoring, supplier evaluation, contract negotiation, and the implementation of business process improvements. Jenny’s strategic leadership has consistently delivered measurable results and strengthened organizational performance.

Jenny has also developed strong experience working across supply chain and finance functions, partnering closely with procurement, logistics and vendor management teams to ensure cost efficiency and operational reliability. She has supported end-to-end financial oversight of procurement cycles, supplier performance evaluation and financial planning.

Recognized for her advocacy and leadership, Jenny served as Chapter Lead of Women in Technology for CommVault, Asia Pacific, and was featured in the Diversity Careers portal in 2016–2017.

Finance Manager

Michael KEENE

Michael Keene is a Chartered Accountant with over a decade of experience partnering with senior leaders across energy, life sciences, professional services, and consumer sectors. He has built a career at the intersection of financial discipline and commercial insight, supporting organisations through periods of growth, transformation, and operational complexity across Australia, Canada, and the UK.

Across roles with organisations including STEMCELL Technologies, Woodside Energy, and Mitie, Michael has held senior finance and business partnering positions covering group reporting, treasury, budgeting, and performance management. His experience spans listed and private companies, international subsidiaries, and cross‑border operations, with a strong focus on providing clear, decision‑ready financial insights to executives and non‑finance stakeholders.

Michael brings a practical, delivery‑focused approach to finance, with particular strengths in stakeholder engagement, continuous improvement, and translating complex financial information into meaningful commercial outcomes. He holds a Bachelor of Commerce and Bachelor of Economics from The University of Western Australia and is a Chartered Accountant (CA ANZ), combining technical rigour with a collaborative, business‑oriented mindset.