Success Stories
Every transformation story is different — but the goal is the same: real progress, made faster. At Sullivan & Stanley, we work alongside ambitious leaders to solve complex problems, build internal capability, and deliver measurable value that lasts.
Some of our clients
From ambition to outcome
We don’t measure success in outputs or slide decks — we measure it in tangible, strategic outcomes. From improving time to value to enabling cultural transformation, here are the outcomes our clients care about most — and how we help deliver them.
When leadership is aligned, transformation accelerates.
We’ve worked with executive teams across sectors — from private equity-backed manufacturers to global automotive leaders — to reset dynamics, clarify direction, and build unified momentum. Through high-impact ELT workshops and tailored coaching, we’ve helped leadership teams identify hidden blockers, shift culture, and focus on what matters. One organisation aligned 8,000+ engineers behind a shared delivery model. Another re-energised its executive team post-carve-out, laying the foundations for high performance and growth.
High-performing teams don’t just execute — they raise the bar.
Across retail, financial services and tech, we’ve helped clients double delivery throughput, reduce team size, and create internal capability that lasts. In one case, we built a nearshore engineering hub that delivered significant customer-facing features while embedding modern DevOps and agile practices. In another, we replaced a stalled consulting engagement by embedding expert teams who coached, delivered and upskilled from day one — enabling leaner, faster delivery across 17 business units.
We’re trusted by leaders who need to see progress now — not in six months.
In sectors like energy, retail and education, we’ve delivered transformation outcomes in weeks, not years. One client cut manual effort in customer onboarding by 60% while significantly improving CSAT. Another launched a first-in-market Scan & Go retail app in just 12 weeks, setting a new standard for digital delivery in the region. And across multiple clients, we've taken enterprise delivery cycles from weeks to days — without compromising quality or control.
Innovation flourishes when teams are empowered to explore and evolve.
We help organisations shift from legacy delivery to agile, experiment-led cultures. In one global education body, we introduced “test and learn” models that enabled faster iteration and improved experience delivery. In a smart city initiative, we co-created a product vision for an AI-powered Human Capital Cloud, backed by behavioural science research. And in retail and consumer sectors, we’ve helped embed data strategies that unlocked new levels of marketing personalisation and product innovation.
We reduce risk by embedding rigour, visibility and accountability into the heart of delivery.
In complex environments like banking, logistics and not-for-profit, we’ve turned around underperforming programmes, improved governance, and built stronger internal delivery muscles. One client improved its change readiness score from 28% to 62% in under six months using our Change Ready 6 framework. Others have benefited from tighter programme governance, more confident user adoption, and real-time dashboards that bring risk, spend and value into clear focus.
We're proud of our NPS score
We don’t just deliver great work — we leave clients stronger than we found them. That’s why 70%+ of our work comes from repeat business or referrals, and why we consistently achieve one of the highest Net Promoter Scores in the industry.
Ready to unlock results like these?
Whether you're driving transformation, accelerating delivery, or building long-term capability — we’re here to help. Our expert teams work alongside yours to deliver measurable impact, fast.