Web development + support specialists.

Mainstay works with organisations that need reliable, technically sound websites and applications, from initial build through to long-term support. We deliver end-to-end development and stay accountable after launch, focusing on security, accessibility, performance, and maintainability. Our clients value clear technical ownership and want their digital platforms to remain dependable as requirements evolve.

We’re a technical development partner first. While design is an important part of many projects, our core focus is engineering, systems, and long-term technical ownership. We’re not a full-service digital agency, and we don’t try to be everything to everyone. Our role is to build, maintain, and steward websites and applications so they remain secure, maintainable, and reliable as organisations evolve.

Because most website problems don’t come from design, they come from technical debt, unclear ownership, unsafe updates, and lack of ongoing oversight. A technical-first approach prioritises clean architecture, upgrade paths, security, accessibility, and maintainability from day one. This reduces risk, lowers long-term costs, and prevents the “fragile website” problem many organisations inherit over time.

It means taking responsibility for the ongoing health of your digital platforms. Governance is about clear ownership, documentation, and decision-making. Assurance is about knowing your site is secure, accessible, monitored, and functioning as expected. Continuity means your website can be safely updated, improved, and handed over without risk if people, vendors, or priorities change. Together, these ensure your web assets remain dependable over the long term.

We specialise in technical website development, ongoing support, maintenance, and governance. This includes complex WordPress builds, custom applications, integrations, automations & AI, performance and security work, accessibility compliance, and long-term technical stewardship. Our focus is on systems that need to keep working properly over time.

Both. We deliver one-off projects where appropriate, but many clients continue working with us through ongoing support once a site is live. This ensures their platform remains secure, stable, and able to evolve safely. We don’t force long-term contracts – ongoing engagement is based on need, not obligation.

We usually work with mid-sized organisations and businesses, public sector bodies, NFPs, and businesses with established operations. Industries include health, aged care, travel, engineering, construction, professional services. Many of our clients already have internal marketing or communications teams and are looking for a reliable technical partner rather than a generalist agency. Our work suits organisations that value accountability, clarity, and long-term thinking.

Our leadership and all client work are Australia-based. Senior developers maintain direct ownership of every project, from build through to ongoing support. We operate to clear internal standards around quality, documentation, security, and accountability, and clients always deal with a single, clear point of contact with the team.