Power BI · Analysis Services · Fabric · DAX · Tabular Editor · Tuning

High-performance semantic model optimization

Slow semantic models cripple the entire BI. We optimize Power BI and Analysis Services models (SSAS Tabular, Multidimensional and Azure AS), from production troubleshooting to full redesign, focused on DAX, VertiPaq, partitioning and Fabric capacity reduction.

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Power BI · Analysis Services · Fabric · DAX · Tabular Editor · Tuning

Fast, cheap and scalable semantic models

Model Optimization

Diagnosis and refactoring of Power BI and Analysis Services models: VertiPaq, relationships, cardinality, aggregations.

DAX Performance

Rewriting DAX measures, Storage Engine vs Formula Engine, profiling with DAX Studio, Tabular Editor and SQL Profiler.

SSAS & Azure AS

Provisioning, scaling, deployment, partitioning and processing of Tabular and Multidimensional models, on-premises or in Azure AS.

Fabric Cost Reduction

Off-loading the semantic model to Analysis Services drastically reduces Fabric/Premium capacity consumption when rendering reports.

The semantic model is the heart of any Power BI project

When the semantic model is slow or poorly designed, everything is slow: reports freeze, refresh takes hours, Fabric/Premium capacity blows up, and end users lose trust in the BI. A pretty visual cannot rescue a bad model.

We cover the full semantic model lifecycle

We work with Power BI semantic models (in Pro, Premium, PPU and Fabric workspaces), SQL Server Analysis Services (Tabular and Multidimensional) and Azure Analysis Services. From building new models to production troubleshooting, including instance provisioning, sizing, partitioning, incremental processing, licensing and migration across platforms.

How we diagnose

We use VertiPaq Analyzer, DAX Studio, Tabular Editor, Best Practice Analyzer, Profiler and Extended Events to identify Storage Engine vs Formula Engine bottlenecks, high cardinality, problematic bidirectional relationships, DAX measures that materialize entire tables and inefficient refresh patterns.

Full scope

What we deliver

Full semantic model audit (VertiPaq Analyzer, BPA)
Star schema refactoring and relationship optimization
DAX measure rewriting (Storage Engine vs Formula Engine)
Aggregations, calculation groups and perspectives
Table partitioning and incremental processing
Row-Level Security (RLS) and Object-Level Security (OLS)
Provisioning and configuration of SQL Server Analysis Services (Tabular / Multidimensional)
Provisioning and sizing of Azure Analysis Services
Model migration: Power BI ↔ SSAS ↔ Azure AS ↔ Fabric
New model creation: requirements, modelling, deployment
Production troubleshooting: slow queries, refresh failures, memory, time-outs
Off-loading models from Fabric/Power BI to AS: capacity reduction
Microsoft licensing (SQL Server, Power BI Premium, Fabric, M365) via CSP
Publishing, deployment pipelines and workspace governance
Documentation and enablement for the internal team
Process

How we work on projects

01

Free diagnostic meeting

We understand your scenario with no commitment

02

Technical analysis and proposal

Full diagnosis and tailored proposal

03

Solution development

We start development providing constant feedback and alignment with the client

04

Validation

We validate together with the client to ensure data is accurate, fast and consistent

05

Documentation

We produce complete documentation of deliverables, artifacts, pipelines and data flows

06

Delivery

We sign the acceptance term to finalize the project

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Engagement Models

How we work together

Choose the model that best fits your moment and needs.

Option 1

Monthly Support

Ongoing partnership with no minimum commitment.

  • No minimum commitment
  • Lower rate per hour
  • Hour bank rollover (up to 4 months)
  • Flexibility to scale at any time
Best for variable-scope work
Option 2

Hour Package

Pre-purchased hours with real-time tracking and full transparency.

  • Balance visible in real time
  • Alert at 80% usage
  • Remaining balance valid for 12 months
  • Scope changes always re-evaluated
Best for well-defined projects
Option 3

Professional Allocation

Body Shop · Outsourcing

Senior professional fully dedicated as part of your team.

  • Full-time (8h/day) or Part-time (4h/day)
  • Immediate SLA
  • Exclusively dedicated to your project
  • Hire by weeks or months
Best for larger projects
Our differentiators

Why Power Tuning?

Over 10 years delivering data projects that actually work. Here is what sets us apart.

Microsoft MVPs

Our team includes Microsoft MVPs in data: the highest recognition Microsoft grants to area specialists.

Microsoft Solution Partner

Certified Microsoft Solution Partner in Data & AI Azure: elite team with direct Microsoft access and advanced training.

Power BI specialists

Power BI Desktop, Service, Embedded, Premium and Report Server: we know every layer of the platform.

End-to-end BI

Architecture, ETL, modelling, Data Warehouse, OLAP cubes and reports. We deliver the full project.

Performance Tuning

National reference in SQL tuning. Forget BI loads taking hours to process and hammering the database.

Multidisciplinary team

Azure, databases, data engineering and architecture: always the best solution for your scenario.

Real specialists

No juniors here. We solve complex problems: we don't learn on the job.

Remote and on-site

We serve clients worldwide remotely. On-site presence available across Brazil (ES, MG, CE and SP).

Training platform

Exclusive high-quality training courses. Clients get a special discount on all programmes.

5M+ blog views

Our consultants' technical blogs have over 5 million views: original solutions shared with the community.

Instant communication

Teams, WhatsApp, Telegram, Slack: no ticketing queue. Fast, direct response, always.

BI & Analytics

Other BI & Analytics services

Explore the other specialised services from our data team.

Data Engineering

Ingestion pipelines, Data Lakehouse, ETL/ELT and dimensional modelling from source to Data Warehouse.

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Fabric & Power BI Monitoring

Full visibility into your Power BI and Fabric environment: usage, performance, costs and real-time audit.

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Report Design & UX

Professional UX reports, visual identity and an experience that delights the end user.

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Power Tuning Ecosystem

Explore our products

Solutions developed by our best specialists to maximize your company's productivity. Guaranteed ROI.

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Talk to a specialist

Pick a time for a no-commitment conversation. In 30 minutes we understand your scenario and lay out the best path forward.

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Let's talk about your challenge

Ready to unlock the full potential of your data environment? Our specialists assess your scenario at no cost, no strings attached.

Fill out the form and our team will get in touch to understand your needs and start a successful partnership.

  • Free initial diagnosis of your scenario
  • Reply within 1 business day
  • No commitment, no charge for the assessment

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Accelerate your semantic model

Cut report response times and Fabric/Premium capacity consumption.

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