MARKETS
Audit & Tax
Your sparring partner for the audit and consulting market — from regulation and ESG to digitalisation, data-driven and independent.

Audit & Tax
Figures that make the difference
The audit and tax consulting market is under pressure due to new regulatory requirements, ESG reporting, digital platforms and automation, which are changing business models and competitive structures for both the Big Four and medium-sized providers. Lünendonk offers guidance amid this complexity. Our market analyses provide dependable data for strategy, positioning and growth. Perfect if you want to keep a handle on the audit and tax market and ensure your decisions are smart ones.
With knowledge that delivers impact – for everyone who wants to shape markets.
Our services
With knowledge that delivers impact – for everyone who wants to shape markets.
Our focus topics
In the constantly evolving B2B services markets, it is crucial to identify relevant trends early and prepare them for the target audience.
This is exactly where Lünendonk comes in: With studies, topic dossiers, white papers and magazines, we shed light on current trends and future developments and complement our annual market analyses to create a holistic picture.
There are concepts for all studies. Focus topics are defined jointly with the study partners.
WITH KNOWLEDGE THAT DELIVERS IMPACT – FOR EVERYONE WHO WANTS TO SHAPE MARKETS.
Our references
With our commitment, expertise and personalised approach, we have earned your trust and consistently delivered exceptional results.

Managing Partner
Jörg Hossenfelder
Management, Audit
Get in touch now
NEWS & INSIGHTS
At a Glance

New Lünendonk Survey: Facility Service Providers Develop New Markets and Digitalize Operations
WeiterlesenMarket volume grew by 2.7 percent to 68.7 billion euros in 2025 | Digital maturity in operational service is increasing | New service models expand the range of services and strengthen market resilience | New Lünendonk Survey now available

Lünendonk Ranking: Leading In-House IT Service Providers Grow Despite Economic Downturn
WeiterlesenLeading In-House IT Service Providers Increased Revenues by an Average of 9.0 Percent in 2025 | Key Focus Areas: IT Modernization, Cyber Security, Process Automation, and AI Transformation | Lünendonk Ranking Now Available Free of Charge

Auditors and tax advisors continue to grow even in the Recession – <br/>Deloitte shares second place with KPMG following a strong comeback
WeiterlesenRevenue of the 25 largest firms rises by 8.1% | Deloitte in second place in the industry ranking for the first time | RSM and BDO each with half a billion euros in revenue | New Lünendonk Ranking 2026 available