Delivering Infrastructure 2050 conference sponsor, Projectworks, outlines three hidden constraints that can hurt consulting firms’ margins.

Most engineering firm leaders know the big levers. Win more work, hire great people, deliver on time and on budget.

But the firms that struggle to grow their margin despite being busy usually aren’t failing at the obvious stuff. They bleed from problems that don’t announce themselves — work that looks normal until you run the numbers and wonder where the profit went.

1. You’re only resourcing what’s in front of you

Most firms resource reactively: a project kicks off, you assign people, it ends and you scramble for what’s next. It feels like agility but it’s one of the costliest habits in the industry. Engineering work is skills-specific. A structural engineer mid-design isn’t the civil engineer you need next week. So forward visibility is essential, or the right people sit idle between phases.

Projectworks analysed resource planning across more than 700 firms and found a consistent split. Research from Projectworks found that firms resourcing at least half of their workforce eight weeks or more into the future grew revenue at roughly twice the rate of those that didn't. 

The part most leaders miss: this isn’t a choice between winning work and resourcing it. You work both concurrently. But that only works if your resource plan is a genuine source of truth, not guesswork: who has which skills, who’s on leave and when, who’s available in three weeks.

As Projectworks CEO Mark Orttung puts it: “The firms... that grow at twice the rate are not doing twice the selling. They are doing a better job of operating the work they already win.”

2. You’re not tracking utilisation (or you’re tracking it wrong)

Almost every leader knows to watch utilisation, yet many track it in a way that tells very little. Underused engineers are a fixed cost with no matching revenue, and the gap compounds quietly across quarters. The Projectworks data is blunt: firms with average utilisation rate of 70% or above make more than double the margin of those below it.

The common failure isn’t missing data; it’s data nobody acts on, time logged in a spreadsheet, reviewed at month-end, long after the bench time is gone.

The fix: treat utilisation as a live signal, not a retrospective report. Know who’s under-allocated this week and act before the gap opens. As Orttung puts it: “Closing all those gaps down raises utilisation, and then all the other metrics go with it.”

And act now, because in the AI era the best firms will do far more with the same headcount. The definition of healthy utilisation and revenue per employee is changing as we speak and those who get ahead of the pack reset the benchmark.

3. Scope grows but fees don’t

Every firm has this story. Scope is agreed, then the client requests an extra analysis, or a site condition emerges that wasn’t in the brief. The engineer absorbs it. By invoice time, a chunk of hours has vanished from the bill. Hours worked plus hours not billed equals margin lost. Three reasons it goes unbilled:

Contracts are often broad enough that extra requests fall into a grey area. Engineers are technical and client-oriented, so escalating scope can feel like it risks the relationship or the firm’s reputation. Without live visibility on budget burn, managers don’t realise a project has overrun until it’s too late.

Discipline is critical to profitability. However, scope creep can happen despite best efforts. The answer? Delivery teams should think of scope as a revenue opportunity. The best firms go even further, incentivising teams to chase new work, including the hidden scope change in plain sight.

The firms that handle this well have clear visibility into the financials, write contracts with clear scope and change orders, and treat raising a commercial conversation as professional, not confrontational. 

As Projectworks CCO Dominique Rennell puts it: “There is so much opportunity being left in how you operate projects. You celebrate winning the half-million-dollar project. There should be the same focus on delivering it as efficiently as possible.”

The pattern across all three

None of these feel urgent in the moment. A week of thin resource visibility, a few absorbed hours, month-old utilisation data. Small frictions, yet they separate the firm that grows profitably from the one that’s just busy.

Forward resourcing. Live utilisation. Real-time budget tracking. These are not radical transformations, but important disciplines. And in the AI era the stakes only rise. As firms learn to deliver more with the same people, the gap between those who run on visibility and those who run on guesswork will widen fast. 

Projectworks is professional services automation software built for consulting, engineering, and architecture firms. It brings resourcing, time tracking, project budgets, and invoicing into one connected view, so the quiet killers stop being quiet.

Projectworks is also a sponsor of the Delivering Infrastructure 2050 Conference, being held in London on 30 June.