Breadth through
results.
We show what we do through what we have delivered. Our case studies span sectors, disciplines, and geographies — each one a demonstration of what delivery-led consulting looks like when the stakes are real.
Siteimprove A/S
A strategic infrastructure shift with no margin for disruption.
Siteimprove’s platform serves thousands of enterprise customers globally. The decision to exit colocation data centers and migrate to cloud-native infrastructure was not just a technical project — it was a business-critical transformation that touched every layer of the organization. Hard deadlines, complex dependencies, and the need to maintain platform availability throughout made this a program that could not afford to drift.
The complexity before Cornerstone arrived.
Migrations of this scale — spanning infrastructure, application architecture, data, and operations — require a level of cross-functional program governance that most engineering organizations do not have as a standing capability. Workstreams spanning multiple teams with different priorities and velocities needed orchestrating. Stakeholder alignment had to be maintained from engineering through to executive leadership. A single point of delivery accountability was missing.
Embedded leadership that held the program together.
Cornerstone embedded senior program leadership directly into Siteimprove’s delivery structure. We established the governance architecture, set delivery cadence across all workstreams, and took accountability for cross-functional coordination — infrastructure, application teams, security, and operations. We maintained honest executive visibility throughout and drove the cultural as well as technical dimensions of the transition, ensuring Siteimprove’s engineering teams were bought in and capable by the time Cornerstone stepped back.
“Siteimprove has engaged Cornerstone since 2021 and trusted them to deliver our most critical programs. We know, and trust, that Cornerstone will deliver the right outcomes.”
A full colo exit — and a team built to own what came next.
The colocation exit was completed. Siteimprove’s platform now runs on cloud-native infrastructure, delivering the scalability and operational efficiency the business needed. Critically, Cornerstone’s approach ensured the internal teams that inherited the new environment were confident and capable — not dependent. The engagement became the foundation for an ongoing partnership, with Cornerstone continuing to support Siteimprove’s most critical programs since 2021.
NCR Corporation
An aggressive schedule, a hard deadline, and no room for service disruption.
NCR Corporation, a 38,000-person global enterprise operating across banking, retail, and hospitality, needed to migrate its Digital Banking platform from data centers to public cloud — on a timeline set by a hard data center lease expiry. There was not enough time to fully transform the applications before the deadline. Service quality and system uptime could not be compromised during the migration. The program needed to move fast without breaking anything.
The problem before Cornerstone was engaged.
The migration program had lost momentum. Multiple internal departments — Software Engineering, Product Management, Customer Services, Security, Hosting & Operations, and Professional Services — needed to operate as a single, coordinated team. The cloud provider’s Professional Services group and a delivery partner also required alignment. Without a single program governance model, the schedule was at risk.
What Cornerstone did — and how we turned it around.
Cornerstone performed a rapid assessment, identified the guiding principles for the program, and designed and implemented a data-driven operating model with cross-functional governance. A “Cohort” model — tightly formed cross-functional teams aligned to application clusters — was implemented to accelerate migrations through the pipeline and resolve issues in real time. The migration approach balanced urgency against risk: carry technical debt into the cloud where necessary, but sequence intelligently to protect service quality throughout.
“We had a very aggressive schedule and the Cornerstone team hit the ground running, quickly identified our program’s guiding principles, then designed and executed a detailed migration plan to make the dates we needed.”
Production in the cloud. Deadline met. Service protected.
Production workloads were running and fully supported in public cloud in under a year — with minimal service issues given the age of the legacy infrastructure. The data center exit deadline was met. The program governance model Cornerstone established — operating across eight internal departments, the cloud provider, and the delivery partner — was cited as the operational foundation that made the program succeed. As migrations concluded, planning for the next phase — SRE maturity, cloud cost optimization, and clearing technical debt — began immediately.
Abrigo
1,500 servers, a hard deadline, and a product roadmap that couldn’t wait.
Abrigo, a leading provider of risk management and lending software to financial institutions across the US, operated 1,500 servers hosting its banking applications. Adding hardware to scale took up to three months. As customer demand grew and competitive pressure intensified, the on-premises model had become a strategic constraint — and the data center lease had a hard exit date.
The challenge: complex SQL Server dependencies and 32 migration waves.
The migration involved not just infrastructure but a complex estate of SQL Server-based applications requiring architectural redesign, open-source database transition, and custom migration patterns for roughly 50 applications with no standard path. The program needed to be broken into 32 waves — sequenced intelligently, with automated scanning to understand the ecosystem before any migrations began. Without this structure, the program would collapse under its own complexity.
Custom migration patterns, wave planning, and cultural transformation.
Cornerstone led the architectural design work for the migration’s most complex applications — defining approximately 50 custom migration patterns and developing database architectures based on Amazon RDS for PostgreSQL for high-availability multi-region deployment. For straightforward applications, the team used a “lift-and-shine” approach, migrating as many as 100 servers in a single weekend. Beyond the technical work, Cornerstone was also instrumental in the cultural transition — working to build buy-in across Abrigo’s engineering teams and leaving behind a re-energized group confident in the cloud platform they now owned.
“If we hadn’t engaged Cornerstone, we’d be a year behind — in the best-case scenario. In the worst case, we probably wouldn’t have gotten off the ground.”
Faster, more capable, and already building what’s next.
All workloads rehosted within 13 months — just before the data center exit deadline. Application performance improved by 25%. Time to market for new products reduced by 50% — enabling Abrigo to release a new fraud detection product in under six months, which would not have been possible on the legacy architecture. The engagement continued, with Cornerstone supporting workload containerization and further database modernization for the next phase of Abrigo’s cloud journey.
