5 verified sustainability and CSRD consultants based in Haarlem, Netherlands. Find the right expert for your compliance needs.
Guide
Your CSRD report is drafted and the assurer is booked. What an independent pre-assurance dry run covers, what it costs, and why it isn't your auditor.
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Three proposals, the same brief, a 4x price spread. How to normalise bids to days and seniority, spot the scope lines that are missing, and read the contract terms that decide what you actually pay.
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The Netherlands has still not transposed the CSRD. Here is what the pending bill and draft decrees actually require of Dutch companies — scope after the Omnibus, filing with the KVK, language rules, who may give assurance, and the repair clause covering voluntary reporting.
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The current CSRD reporting timeline after the Omnibus package — which wave you are in, the revised first reporting year for each cohort, the new size thresholds, and what to do in the years before your first report.
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A screening script for CSRD consultant interviews: 25 questions across ESRS depth, double materiality, data, assurance, staffing and commercials — each with the answer you want and the answer that should worry you.
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Discover how CSRD requirements vary by industry — from financial services and energy to manufacturing and retail. Learn which ESRS topics matter most for your sector and how to prioritise your reporting.
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5 experts match — showing 1–5
ESG and CSRD consultancy
Empact is a boutique ESG consultancy in Haarlem, the Netherlands, advising companies and public organisations on the CSRD. Its work covers double materiality assessments, CSRD reporting and ESG strategy. Empact guided Delta Electronics EMEA for two years on its first CSRD report, including the double materiality assessment and an ESG data platform for 109 entities, and supported OTTO Work Force and Cyclomedia on their first sustainability reports under the CSRD. Other clients include CBS (Statistics Netherlands). For SMEs in the value chain of CSRD reporters, Empact works with the VSME.
Founder and Managing Director
Martin founded Empact, a boutique ESG consultancy in Haarlem, and has worked as a CSR manager and sustainability professional since 2006. He advises companies and public organisations on the CSRD, with a focus on strategy. Together with Anne Rademaker he supported OTTO Work Force on its first sustainability report under the CSRD, published in 2025, and both now work with Delta Electronics EMEA on its next CSRD report. Martin is also a part-time lecturer at the University of Amsterdam.
Co-owner and ESG Consultant
Anne is co-owner of Empact and works on ESG implementations such as the CSRD for companies and public organisations, with expertise in sustainability and the circular economy. She has worked on sustainability projects since 2014, including strategic ESG risk management at EY. With Martin de Jong she supported OTTO Work Force on its first sustainability report under the CSRD, and she now works with Delta Electronics EMEA on its next CSRD report. Anne teaches at the University of Amsterdam, Nyenrode Business University and Wageningen University & Research.
Management Consultant
Derk Jan is a management consultant at Empact with decades of experience as a director and manager. He helps organisations develop an ESG strategy and turn it into concrete programmes and projects, with a focus on the VSME, the voluntary standard that helps SMEs answer sustainability data requests from customers that report under the CSRD. With Martin de Jong and Jeroen Scheepmaker he guided Ducky Dons, a Dutch maker of down duvets and pillows and one of the first SMEs to work with the VSME, through its VSME report, including a materiality assessment and a full carbon footprint.
Value Chain Emissions Consultant
Jeroen has more than ten years of experience in Scope 3 accounting and strategy and in Science-Based Targets, two topics covered by ESRS E1. Before he became an independent consultant, he was a director at Guidehouse, where he led a team of ten in Europe supporting international companies and their supply chain partners on sustainability. For Empact he investigated, through several case studies, how much CO2 Cyclomedia's customers avoid by using its Street Smart platform, and he was part of the team behind the VSME report for Ducky Dons.