Power BI clarity. Better decisions. Proven methods
Metis BI is a Power BI and data consultancy that spends more time understanding your business, and less time hiding in the tech.
We help organisations turn messy data and reporting into trusted decision-making. That means clarifying what matters, designing the right solutions and semantic models, improving performance, implementing right level of security and governance and building reporting solutions that your teams actually use.
Founded by Lazaros Viastikopoulos, former Head of BI at a leading UK Data & AI consultancy, Metis BI blends deep Data Analytics, Microsoft Fab ric and Power BI expertise with real-world commercial insight to help leaders make confident, data-informed decisions.
We do not just build dashboards. We solve real business problems, reduce firefighting, and guide teams towards Power BI maturity with with tried-and-tested methods.
Why work with Metis BI?
✅ Proven Approaches: Tailored, proven methods to meet your business needs effectively.
🕒 Decade of Expertise: Extensive experience, including starting a Power BI practice at a top UK consultancy.
❤️🔥 Unmatched Passion: Our passion drives us to deliver top solutions for your business right from the start.
💞 Personal Attention: One-on-one support and tailored service throughout the journey. Work directly with Laz!
🌟 Diverse Experience: Industry-wide experience helps tailor solutions to your unique challenges
🤝 Community: Actively involved in the Power BI community, not just a remote face
If you want to stop firefighting reporting issues and start using Power BI as a single version of the truth, let’s talk.
"Their work combined focus on delivering a reporting solution with upskilling team members."
Feb 16, 2026
Insights Analyst, Health Nonprofit
Anonymous
Verified
Non-profit
London, England
51-200 Employees
Online Review
Verified
Metis BI provided Power BI consulting and training for a health nonprofit. The team created a Power BI Income Report, conducted training sessions on requirements gathering, and provided data modeling support.
Metis BI's work improved the client's understanding of Power BI best practices, reporting requirements, and data modeling foundations. The team was responsive, adaptive to changing needs, punctual, and committed to upskilling the client's team. Metis BI's knowledge sharing ensured long-term success.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Insights Analyst of a health nonprofit.
Describe what your company does in a single sentence.
NHS Charity dedicated to building a healthier society by addressing health inequities and supporting innovative health initiatives in London and beyond.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Metis BI to accomplish?
To support the Foundation’s reporting and analytics capability through Power BI design, data modelling guidance, and hands-on support, while upskilling internal team members and introducing more structured, business-led reporting practices.
SOLUTION
How did you find Metis BI?
Referral
Why did you select Metis BI over others?
High ratings
Pricing fit our budget
Referred to me
How many teammates from Metis BI were assigned to this project?
1 Employee
Describe the scope of work in detail. Please include a summary of key deliverables.
Laz and Metis BI developed a comprehensive Power BI reporting solution and established foundational business intelligence capabilities within our organization. The work encompassed both technical delivery and knowledge transfer to enable our team's long-term self-sufficiency in BI reporting. Key deliverables include a Power BI Income Report, training sessions on requirements gathering as well as artefacts focusing on data modelling.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Improved internal understanding of Power BI best practices, clearer reporting requirements, stronger data modelling foundations, and increased confidence of internal team members in developing and maintaining reports.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
I was particularly impressed by Laz' responsiveness and ability to adapt to changing needs. All items were delivered on time and knowledge was shared throughout the process to ensure long-term success.
What was your primary form of communication with Metis BI?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
I was particularly impressed by Laz's committment to upskilling team members soft and hard skills. Highlights include BEAM modelling shares which helped team members think about reporting in terms of business processes, training on implementing a requirements gathering framework as well as sessions focused on preparing for Microsoft's PL-300 Power BI Data Analyst exam.
Are there any areas for improvement or something Metis BI could have done differently?
I wouldn't change anything about their approach. Their work combined focus on delivering a reporting solution with upskilling team members and has been of huge benefit.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Showing 1-1 of
1 Reviews
Our Story
We’re Metis BI, a UK Power BI consultancy founded by Laz Viastikopoulos (12+ years in BI, ex-Adatis & Telefonica Tech) with Paola Dyankova (VP Sales & Marketing, ex-Meta). Our team blends deep technical leadership, governance and optimisation methodologies, and enterprise sales experience to deliver Power BI governance, training, report development, optimisation and migrations. We’ve transformed data for 100+ organisations and contribute to the UK Power BI community.
Meet the Team
Lazaros ViastikopoulosCEO & Founder
Founder of Metis BI. I help organisations fix Power BI fast: ROI-driven reporting, governance and security, performance optimisation, adoption, migrations, MS Copilot Optimisation and training. 10+ years analytics, active in the Power BI community.
Paola DyankovaVP of Sales & Marketing
I am Paola Dyankova, VP of Sales & Marketing at Metis BI. I bring 10+ years of enterprise sales experience (Meta, Fortune 500), building trusted relationships and guiding complex deals from first call to long-term value.
What Sets Us Apart
Business Value First, Always
We challenge early and stay focused on ROI. If Power BI is not the right answer, we say so. No dashboard theatre, just reporting that drives better decisions and gets adopted.
Embedded, One Team
We work with you, not behind you. We embed with stakeholders, drive the conversations that need to happen, and deliver outcomes faster because it feels like one team pulling in the same direction.
Independence, Not Dependency
We involve your team from day one, sharing the thinking as we build. The goal is to coach and upskill so you can own Power BI long-term, not rely on external consultants forever.
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