Inergy continues to build its Planning & Control software suite with investment in Gemstone


The Hague, 16 November 2020 – Inergy, a software company active in performance management, planning & control software and data analytics, and du ROI Accountants Belastingadviseurs & IT Auditors, entered into a strategic partnership on November 13th. Part of the agreement is the partial sale of Gemstone to Inergy. Gemstone is a software application that allows a municipality to audit its financial administration to determine whether it is fiscally ‘in control’.

Inergy focuses increasingly on software applications for the semi-government market and aims to support municipalities to work more ‘data driven’. This gives municipalities access to better management information and better ‘grip’ on important domains such as business operations, the social domain and with the acquisition of Gemstone in the field of taxation.

Mathijs van Houweninge, CEO of Inergy: “Gemstone fills in an important part of the Horizontal Supervision for which more and more municipalities are signing a covenant with the tax authorities. The application fits well in our portfolio and our strategy for (semi-) government. Among other things, it is aimed at supporting municipalities to work more data-driven and – based on more insight, also to get a better grip on performance and thus be better in control. With the LIAS product suite, Inergy is market leader in the field of planning and control at municipalities. With the addition of Gemstone and earlier this year PAUW and BUIG, Inergy now offers a platform that is used by almost all Dutch municipalities”.

Wil Peters
, partner at du ROI: “Municipalities increasingly have to deal with VAT, Corporate Taxes and Wage Taxes because of their wide variety of activities. Fiscal control, – risk management and – compliance do not belong to the core activities of a municipality. This cooperation and combination of portfolios ensures a broadening of the services we provide to our clients on these subjects”.

About Inergy
Inergy supports organizations with data and analytics services based on today’s most effective technologies. Inergy strives for long-term and successful customer relationships based on a partnership vision and co-creation. The motto is to perform better by handling data intelligently.

Inergy’s LIAS product suite offers a broad functionality in the field of Planning & Control for local governments, provinces, water boards and education. With this tool LIAS is market leader in the Dutch municipalities. Lias helps municipalities to set goals, analyse results and provide online insight into reports for a large group of stakeholders, from policymakers to councilors and citizens.

About du ROI
du ROI is a progressive organisation of accountants, tax advisors and IT auditors that stands for innovation in financial and fiscal services. du ROI has an extensive team of employees with a focus on the municipal market. This team has all the necessary knowledge and experience to support municipalities in the field of taxation and fiscal control. du ROI developed the Gemstone software that a municipality can use to efficiently audit its financial administration to determine whether it is in control from a fiscal perspective.

About Main Capital Partners
Main Capital is a strategic investor with an exclusive focus on the software sector in the Benelux, DACH and Nordics. Main has a long-term horizon around successful partnerships with management teams, with the aim of building larger software groups together. Within the software sector, Main is the most specialized party in management buy-outs and later stage growth capital. Main has approximately € 1 billion in assets under management for investments in mature and growing software companies. An experienced team of professionals manages these Private Equity funds from offices in The Hague, Düsseldorf and Stockholm.

The current portfolio of Main Capital Partners includes fast-growing software and SaaS companies such as Pointsharp (Security), Textkernel (HR & AI software), MACH AG (E-Government software), WoodWing (marketing automation), Alfa (healthcare), Exxellence Groep (government software), Optimizers (supply chain software), Assessio (HR & Talent management), GBtec (process automation / workflow management/ GRC), Onventis (procurement & invoice management), HYPE Innovation (innovation management / collaboration), Cleversoft (GRC for financial services), Enovation (Healthcare), SDB Groep (Healthcare), Jobrouter (Process automation), GOconnectIT (GEO ICT), Inergy (data driven governmental solutions), MUIS Software (financial administrative), Artegic (marketing automation), OBI4wan (customer engagement & Chatbot platform), b + m Informatik (financial services) and ChainPoint (sustainable supply chain tracking). Successful former companies that have grown substantially under the guidance of Main are: Connexys (HR software), Roxit (municipal software), Axxerion (facility management software), Ymor (APM software), Onguard (credit management), Denit (managed hosting provider) and RVC (Healthcare).

Note for editors:
The sender of this press release is Main Capital. For more you can contact:

Pieter van Bodegraven  (Partner)
Main Capital Partners B.V., Paleisstraat 6, 2514 JA, Den Haag
Tel: +31 (0) 70 324 3433

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