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Linking strategy to daily work for complex organisations
BY ERROR is a Copenhagen-based consultancy with a clear mission: to help organisations create real impact by closing the gap between high-level strategy and the realities of day-to-day work. In a world where ambitious plans routinely stall in implementation, BY ERROR positions itself as the partner that turns complexity into clarity and ideas into action — not through grand frameworks alone, but through hands-on engagement with the people and processes that make organisations move.nnThe firm operates at the intersection of strategy, operations, and leadership, with a particular strength in navigating large-scale transformation projects. Their client portfolio spans healthcare systems, public infrastructure, research institutions, and global corporates — a breadth that reflects the team’s ability to adapt rigorous analytical thinking to very different organisational cultures. Whether optimising CT and MR scan capacity across three regional hospitals, helping IKEA define its digital transformation strategy alongside SPACE10, or supporting the rebuild of Aarhus Station, BY ERROR brings the same disciplined, collaborative approach to every engagement.nnA distinguishing feature of the firm is Viewly, a proprietary communication and task-management platform developed to address a recurring challenge the team observed across clients: the absence of a shared, real-time view of priorities and capacity. Viewly is not a side product but a reflection of BY ERROR’s core belief that structural clarity — knowing what matters, who owns it, and what’s possible — is the foundation of effective leadership and organisational health.nnThe team combines expertise in design thinking, lean methodologies, data analysis, Microsoft Power Platform, IT architecture, and healthcare systems. This multidisciplinary composition allows BY ERROR to engage with both the strategic and technical dimensions of transformation, working closely with senior management while remaining grounded in the operational reality of frontline teams. Their approach is consistently co-creative, drawing stakeholders into the process to build ownership and ensure solutions stick.nnFounded and led by Managing Partner Terne Vishart and Partner Kristian Fevejle, BY ERROR brings together professionals with backgrounds in operational excellence, mega-project leadership, business analysis, system development, and clinical medicine. It is a firm built for the messy, high-stakes work of genuine organisational change — and one that seems to thrive precisely where others find the complexity too daunting.
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Terne works at the intersection of operations, leadership, and facilitation, bringing deep expertise in design thinking and lean methodologies. She has led transformation efforts in market-leading organisations, including serving as Head of Operational Excellence within infrastructure and development. She excels in co-creation processes and aligning organisational structures with strategic goals.
Kristian specialises in strategic direction and operational focus, combining data-driven analysis with practical execution in complex transformation environments. He has a proven track record of leading mega projects across healthcare, health tech, and other sectors. Kristian collaborates closely with senior management to develop business models and validate strategic decisions through robust business cases.
Challenge
Det Nære Sundhedsvæsen needed to significantly expand the eHospital model but lacked a structured, model-supported strategy to guide growth…
Outcome
The strategy laid the groundwork for a 600% scale-up of the eHospital, representing one of the most ambitious expansion…
Challenge
Region Zealand's Næstved, Slagelse, and Ringsted Hospitals were struggling to meet national targets for cancer treatment timelines due to s…
Outcome
The hospitals were able to meet national cancer treatment targets through improved scan utilisation, directly impacting…
BY ERROR is consistently described as a firm that does what many consultancies promise but rarely deliver: closing the gap between strategic ambition and operational reality. Clients across healthcare, public infrastructure, and global retail highlight the team's ability to combine rigorous analytical frameworks with genuine co-creation — drawing internal stakeholders into the process rather than presenting solutions from the outside. Engagements tend to be characterised by hands-on involvement at both senior leadership and frontline levels, with a notable emphasis on building internal ownership so that momentum continues after the project ends. The proprietary Viewly platform is frequently mentioned as a practical differentiator, giving teams a shared operational picture that survives the engagement itself.
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