Net Revenue Retention (NRR) for Engineering Firms.
The single most important SaaS retention metric.
Engineering practices, engineered to scale.
Why engineering firms operators use the net revenue retention (nrr).
Calculate NRR (Net Revenue Retention) and GRR (Gross Revenue Retention) from your existing customer base.
Engineering firms — civil, structural, mechanical, electrical — are professional services businesses with unique constraints: project-based revenue, deep specialization, and complex stakeholder management. SAZ helps engineering firms scale revenue, productize services, and embed AI across project delivery.
What good looks like — typical ranges to compare against.
How net revenue retention (nrr) is calculated.
NRR = (Start MRR + Expansion − Contraction − Churn) ÷ Start MRR × 100What changes when net revenue retention (nrr) is applied to engineering firms.
Project-based revenue volatility
Productization of recurring services
Talent leverage and utilization
Document, drawing, and report production
Open the net revenue retention (nrr).
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