About Us
Spearhead Engineering is a 100% Australian-owned engineering design consultancy headquartered in Brisbane, Australia. We specialise in providing comprehensive engineering design services for the built environment, with a focus on building services, renewable energy, energy demand management, sustainability, infrastructure, master planning, feasibility studies, and data analytics. Working across multiple sectors and geographic regions, including Australia and the wider Asia-Pacific, we are committed to delivering innovative, high-quality solutions that meet the evolving needs of our clients.
Our goal is to be our clients’ trusted adviser for engineering services. We pride ourselves on offering unbiased, expert advice that serves the best interests of our clients. Due to our smaller, independent nature, we maintain a high level of flexibility and are less likely to encounter conflicts of interest, allowing us to provide focused and impartial recommendations.
Our Mission
At Spearhead Engineering, our mission is to provide innovative and high-quality engineering designs that meet the needs of our clients, while maintaining a strong focus on safety, reliability, and cost-effectiveness. We operate with the utmost integrity and are committed to exceeding expectations in every project. As a trusted partner, we aim to bring our clients’ visions to life with practical, forward-thinking solutions that deliver long-term value.
Our Values
At the heart of Spearhead Engineering are the values that guide our approach to every project.
Integrity
We hold ourselves accountable to the highest standards of integrity. This means being true to our word, honouring our commitments, and upholding ethical principles in all interactions. Honesty, transparency, and ethical behaviour are fundamental to building and maintaining trust with our clients, partners, and stakeholders. Integrity is the foundation of our company culture.
Quality
We are dedicated to maintaining the highest level of quality in every aspect of our work, from design through to execution. Our team continuously strives to improve processes and practices to ensure we deliver the best possible outcomes for our clients.
Innovation
We are committed to exploring new ideas, technologies, and processes that drive innovative solutions for our clients’ challenges. Staying ahead of the curve is essential in our industry, and we actively encourage creativity and unconventional thinking to continuously improve our engineering designs and approaches.
Sustainability
At Spearhead Engineering, we believe that our designs have the potential to create a more sustainable future. We prioritise sustainability in every aspect of our work, from selecting environmentally friendly materials and reducing energy consumption to reusing existing infrastructure and implementing sustainable practices within our own office operations.
Why Us
Choosing Spearhead Engineering means working with a team that offers a unique blend of expertise,
independence, and client-focused service. Here’s what sets us apart.

Trusted Adviser
We aim to be your go-to engineering partner, providing unbiased advice with your best interests in mind.

Tailored Solutions
Our smaller size allows us to stay flexible and deliver bespoke solutions that are perfectly aligned with your project’s specific requirements.

Proactive Risk Management
Our experience enables us to identify risks early and implement strategies to minimise disruptions, ensuring timely and cost-efficient project delivery.

Sustainability-Focused
We are committed to creating solutions that not
only meet your goals but also contribute to a more
sustainable and environmentally friendly future.

Collaborative Approach
We work seamlessly across disciplines and with
multiple stakeholders to ensure that your project
runs smoothly from start to finish.
Our Team
Suman Retnavel
Director and Principal Engineer
FIEAust CPEng EngExec NER APEC Engineer IntPE(Aus)
RPEQ (QLD), VBA Endorsed PE (VIC)
As a Chartered Electrical Engineer with 18 years of experience, Suman Retnavel has successfully led a variety of high-profile engineering projects across multiple sectors, including building services, infrastructure, renewable energy, and master planning. Suman Retnavel brings a hands-on approach to every project, ensuring that each design is tailored to meet client needs with a focus on innovation, reliability, and sustainability. Through partnerships with other industry-leading professionals, Spearhead Engineering provides the flexibility and technical expertise needed to deliver exceptional solutions for any challenge.
