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Rianne Dritty

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I find it a bit difficult writing about myself and how great I am (which for the record: I am), so I asked business partners & former colleagues how they see me and what has been said in all those conversations is that I am an energetic and enthusiastic lady with extensive managerial & controlling skills and I am keen on improvements. So there you have it. 😉

I have worked for 18 years in the field of Controlling of which 13 in corporate life and 5 in an educational institution and thus I have seen and experienced both worlds.

I am able to swiftly adapt to changing environments, but I am also especially skilled in getting the message across – in all levels of an organization, whether it be “a suit and tie” or not. Not only do I look at the numbers, but I also look at the context, the entire (end-to-end) process and very important: the people behind it. With a quip I can put people at ease or break open a deadlocked discussion.

I am also somewhat of a “forever student” and eager to learn. Finishing a post-HBO as Registered Financial Controlling® and a master’s degree in Business Process Management, whilst working fulltime and being a single parent, it shows the ambition and drive I have. Currently, I am doing a Philosophy program and as of November 2022 I will start with the program for prospective supervisors at UMIO. In my spare time (yes, I do have some) I love to read books, travel and dine out.

Skills and Education


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Rianne Dritty MSc.



Described by business partners & colleagues as an authentic, strong and lively personality. I am an ambitious, experienced and innovative manager and controller with strong analytical and consulting skills. International, managerial and leadership experience. Also strong in the field of automation, process improvements (end-to-end), change management and controlling. Also, I am always looking for and working on ways to improve myself and my work.

Work history

Owner Valour Consulting in Maastricht:

11/2021 - current

Interim assignments on a project basis for, among others, controlling, process improvements, team leader and management positions.


02/2023 - current

Finance Manager/ Business controller at Esaote Europe BV in Maastricht

04/2023 - current

Consultant coach of new permanent controller at Bonnefantenmuseum in Maastricht

03/2022 - current

Director at P.R.S.C. BV in Maastricht

10/2022 - 03/2023

Business & Financial Controller at Bonnefantenmuseum in Maastricht

04/2022 - 10/2022

Business & Plant Controller at AnQore in Urmond/Geleen

11/2021 – 07/2022

Chief Accountant LECO EUROPE BV in Geleen

for the subsidiaries France & United Kingdom


Permanent jobs

Teamlead F&C / Controller Facility Services & Real Estate at Maastricht University⁰ in Maastricht

07/2017 - 02/2022

Responsible for preparing multi-year budgets, budget monitoring, management reports and advice in line with the policy plan of Facility Services and the strategic plan of Maastricht University. Member of the MT and provide coaching leadership to the team Finance & Control at Facility Services (headcount 6).


  • Automated and optimised the activities within F&C FS, which lead to a reduced headcount.

  • LEAN process optimalisation which reduced waiting time of that specific process from six weeks to zero.

  • Increased knowledge of finance within the entire service center of Facility Services.

  • Increased reporting on Facility Services & Real Estate.

⁰ Educational institution with governmental, contract, indirect governmental and third-party funding. 2020 Turnover: € 960 mio / 2020 employees: 4.500


Controller at Solvay ⁰ in Linne-Herten & Klundert

10/2016 - 06/2017

Controller at two sites in different Business Units: Solvay Chemical BV in Linne-Herten (Peroxydes) and Solvay Solution Nederland (Novecare). For both locations part of the Site Management Team. Ensuring timely, accurate and complete accounting and analysis of Solvay's business activities in accordance with IFRS and GBU specific guidelines.

⁰ Publicly traded company at Euronext Brussels, Belgium. 2017 turnover: € 10,1 bn / 2017 employees: 24.500

Controller at INVISTA Nederland BV in Kerkrade

03/2015 - 09/2016

Financial conscience of the site as part of the Site Management team. Drive value creation and financial improvements, e.g. by restructuring cost center setup and allocations.

Manage financial processes and ensure internal controls are properly implemented and adhered to.


  • Restructured cost center set up for improved transparency & efficiency.

  • Reduced overall allocations, simplified accounting to improve transparency.

⁰ Privately held company under Koch Industries. 2016 Turnover $ 110 bn /

2016 number of employees: 100.000

​Plant Controller at Celanese Emulsions BV⁰ in Geleen 12/2008 - 02/2015


Ensure timely, accurate and complete accounting of business activities in accordance with local and US GAAP standards and act as the main contact with the Global Shared Service Center in Hungary.

Provide financial support and advice to all activities of the Celanese plant. Ensuring that the site is SOX compliant. Member of the Site Management Team.


From March 2010 until September 2011, I was also plant controller for Celanese Emulsions Norden AB in Sweden (Perstorp). The controlling tasks were the same as in Geleen (with the exception of Local Finance).


  • Implementation of SOX control Annual Asset count

  • Implementation of SOX control Annual Inventory count

  • Increased cost awareness over all employees on site to further

  • Increased predictability on spendings

  • Reports always at a 2% difference maximum.

  • Remodelled canteen and improved moral


Publicly traded company at New York Stock Exchange (NYSE), USA. 2015 Turnover: $ 6,8bn / 2016 number of employees 7.000


Assistant Financial Controller at PQ Europe in Maastricht 06/2007 – 11/2008    


Employee Planning & Control at SROL in Heerlen

11/2005 – 05/2007


Department Manager Administration at Media Markt Maastricht/ Eindhoven 08/2004 – 10/2005


UMIO 2022-2024

Program for prospective supervisors (start november 2022)

Open University 2022 - 2023

Focus programme Philosophy


Open University 2018 - 2020

MSc Business Process Management & IT

Variant: Data Science Management


Open University 2018 - 2018



Open University 2013 - 2015

Registered Financial Controlling®


HEAO 2000 - 2005

Business Economics


Trichter College 1994 – 2000



Dutch: native

English: fluent verbal and in writing

Skills & Strengths

  • International experience

  • Managerial experience

  • Work well independently, but also a

  • Team-player

  • Strong analytical skills

  • Strong SAP skills (ERP)

  • Budgeting, cost control, month end close

  • Analytical & Advisory expertise



  • 2020: Certified LEAN Green Belt

  • 2019: Creating and writing policy

  • 2018: Influence & Advise

  • 2013: Internal Auditor ISO 9001

Hobbies & Interests

  • Reading

  • Travelling

  • Dining out

  • Cinema / Movies


Other information

Full name: Rianne Noëlle Dritty

Nationality: Dutch

Marital Status: Single mother

Driver’s license: Yes

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