Most SMEs hanker after sustainable growth; growing steadily enough to make sure founders can keep up. Bret Tushaus, VP of Product Management at Deltek, explores the five fundamentals project-based SMEs and scaling start-ups need to successfully grow in today’s uncertain market.
Winning more work, expanding into new markets and building larger, more capable teams are all clear signals of progress for any business. Momentum like this reflects years of hard work, strong client relationships and the level of ambition required to compete in a fluctuating market.
Growth is most successful when performance can scale with it. In the current economic climate, this has never been more important. Rising business rates, alongside higher wages and energy costs, are encouraging UK firms to rethink how they scale sustainably, with greater focus on resilience, efficiency and long-term competitiveness. Our own Deltek Clarity research found that a third (33%) of UK SMEs are already transforming their business models to stay competitive.
For project-based firms, such as those in the architecture, engineering and consulting sectors, sustainable growth means maintaining margin, delivery quality, cash discipline and client confidence, all while the business becomes more complex. More clients, more projects and more people create more handoffs, more data and more decisions to make. This is a source of concern for many in 2026, with over a quarter (27%) of firms ranking the rising complexity of projects as the number one project management challenge.
However, with the right foundations in place, this complexity does not have to slow firms down. Instead, it is an opportunity to sharpen visibility and give leaders a clearer view of where the business is heading. So how can firms scale with intention and for the long-term? The answer is in five fundamentals: clarity, control, cash, clients and connection.
The five fundamentals of sustainable growth
First, growth requires clarity. As simple as it may sound, some organisations remain held back by an absence of real-time insight, leaving costs and margins down to guesswork. Leaders need a single version of the truth across pipeline, resourcing and finance. This allows firms to respond proactively, making decisions faster and with more confidence. Decision latency has become one of the biggest barriers to sustainable growth. The longer it takes to understand whether a project is drifting, resources are stretched or margins are under pressure, the harder it becomes to act before risk turns into reality.
Second, maintaining control is essential as teams expand and project scopes evolve. Scaling sustainably requires operational discipline, with structured resource management, consistent processes and integrated project accounting, ensuring that expansion strengthens delivery performance, rather than stretching it. Proper planning and forecasting help firms match capacity to demand and avoid the costly cycle of overbooking and underutilisation.
Third, cash resilience is another fundamental of sustainable growth. Expansion often intensifies cash flow pressure, particularly in architecture, engineering and consulting environments where projects span months or years. Aligning billing to milestones and tracking budgets against actual performance builds resilience into the business. With the right financial visibility, firms can invest in innovation and talent with confidence.
Fourth, client selectivity is an essential but often overlooked step. Firms should aim for quality over quantity, building strong relationships with trusted, reputable clients rather than pursuing every lead that comes their way. Clear positioning, disciplined bid selection and a focus on higher-margin, strategically aligned projects protect profitability. Tracking win rates and pipeline health ensures that effort is focused where it delivers the greatest return.
Finally, connection is the last fundamental. Fragmented data and disconnected systems slow decision-making and create risk. An end-to-end platform that connects CRM, project management, resource planning and finance creates transparency across the full lifecycle. When business development, delivery and finance operate from the same dataset, collaboration improves and performance soon follows.
How emerging technology can foster sustainable growth
Applied purposefully, the adoption of emerging technologies can put firms on a strong footing. The right stack can become a strategic growth enabler that can scale with a firm, rather than becoming a bottleneck at a later date. Many firms recognise this imperative, with 27% citing investing in new technologies as a top priority. But to scale effectively and sustainably, these technologies must support the entire project lifecycle, rather than add more fragmentation.
Leading firms are focusing less on individual tools and more on building connected capabilities across the project lifecycle. Best in class solutions include everything from a streamlined customer relationship management (CRM) system, which centralises all business development efforts, to an ERP solution designed for transparent and accurate reporting.
Artificial Intelligence (AI) will amplify this further. The technology should not be harnessed to replace human expertise, but to help teams see more clearly, act faster and make more informed decisions. In practical terms, that could mean surfacing risks earlier, highlighting anomalies in project performance, supporting resource planning or helping leaders understand where margin pressure is emerging. As outlined, this is essential for sustaining growth.
Firms must now create safe environments for experimentation. The pace of emerging technology, and particularly AI, means firms will not get every tool, workflow or use case right the first time. That is not a failure. In many ways, it is the point. Businesses that can test quickly, learn quickly and move on from what does not work will be better placed to turn emerging technology into a lasting competitive advantage.
In today’s market, resilience may feel like the order of the day, but growth is not out of reach. When firms put clarity, control, cash, client selectivity and connection at the heart of their ambition, they create a platform that allows them to grow confidently, even in volatile markets.
