Stek > Amsterdam, Netherlands > Firm Profile

Leidseplein 29
1017 PS Amsterdam

Netherlands > Energy: regulatory Tier 1

Stek offers ‘extensive knowledge of energy law and the energy market’ and is particularly active in the electricity and gas distribution sector. The team, which includes key practitioners Jan Erik Janssen, Reijnoud Homveld and Herman Wamelink, acts for energy distribution companies and large international energy players; Janssen, in particular, is recommended for administrative and civil litigation before competition authorities and has experience interacting with policy makers. The practice was further strengthened with Claudia Beele's promotion to partner in January 2021 and the arrival of Coen Thomas from Allen & Overy LLP the following month.

Practice head(s):

Jan Erik Janssen; Reijnoud Homveld; Herman Wamelink; Jeroen Timmermans; Sharon Kaufmann; Coen Thomas; Claudia Beele; Sharon Kaufmann; Veii Jacobs


Stek Advocaten has a great team.

They respond quickly and expertly to questions and developments.

Prompt reactions and useful and practical advice.

They pay full attention to the customer and the specific case.

The team has done its utmost to gain sufficient knowledge and insight into our company.

Veii Jacobs has an extremely broad orientation and was able to assess our questions effectively.

Veii Jacobs is able to articulate things correctly in the legal sense.

Key clients







Netbeheer Nederland



Tata Steel

Utility Support Group (USG)

Work highlights

  • Representation of Netbeheer Nederland in shaping the new tariff regime for 2022-2026.
  • Successful representation of Liander in shaping the congestion management regime.
  • Representation of PZEM in a first-of-its-kind Remit sanctioning procedure.

Netherlands > Energy: transactional Tier 2

Offering ‘a strong team with a deep understanding of the energy market’, Stek’s integrated transactional, project finance and regulatory group is across both the traditional and renewable energy sectors. Clients value the group's broad expertise, which includes M&A, joint ventures, and commercial contracts alongside a strong regulatory and public law capability. Key practitioner Reijnoud Homveld acts for energy companies, financial institutions, private equity funds and investors. Claudia Beele was promoted to partner in January 2021 and Coen Thomas joined from Allen & Overy LLP the following month.

Practice head(s):

Jan Erik Janssen; Reijnoud Homveld; Claudia Beele; Coen Thomas; Jeroen Timmermans; Herman Wamelink; Sharon Kaufmann


I’m very satisfied with Stek and their energy transactional practice.

They have been instrumental in helping us successfully implement our investment strategy in the Netherlands where we had no previous experience.

They were very quick to understand our needs and proposed a broad team from day one.

Claudia Beele is very dedicated and meticulous.

Reijnoud Homveld has shown a great level of flexibility in helping us transact with inexperienced and sometimes difficult counterparties.

The individuals are real experts and enjoy the law they practice.

‘They are client focussed and easy to deal with, nothing is ever too difficult.’

Without exception, all individuals involved understand the unique challenges we were facing, queried, challenged and collectively developed the right pathway.

Key clients



Carbon Collectors






Limburgs Energiefonds



Yeager Energy

Work highlights

  • Advised Asper on its first investment, via its Dutch Energy Transition co-investment platform, in Dutch sustainable heat networks.
  • Advised Vopak, Whitehelm Capital and Groningen Seaports on their joint venture in respect of the development of a large solar park located in Eemshaven, Groningen province.
  • Advised Enercon on the sale of its 40% shareholding in Windpark Krammer to Kallista Energy.

Netherlands > Project finance and PFI Tier 2

Boutique firm Stek brings together expertise in finance documentation, project documentation and regulatory knowledge, with a focus on heat and gas projects. The strong finance transaction and energy regulatory practice covers biomass, solar wind and geothermal matters, as well as projects in the renewable energy and technology fields, notably glass fibre cable, data centre and recycling mandates. Experienced partners Herman Wamelink , Sharon Kaufmann , Reijnoud Homveld  and Coen Thomas co-lead the practice with recently promoted partner Claudia Beele .

Practice head(s):

Herman Wamelink; Sharon Kaufmann; Reijnoud Homveld; Claudia Beele; Coen Thomas

Key clients


Amsterdams Klimaat & Energiefonds

ASN Bank N.V.


BNG Bank N.V.


Coöperatieve Rabobank U.A.


ING Bank N.V.


Limburgs Energie Fonds (LEF) B.V.

Nationale Nederlanden Investment Partners N.V.

Nederlandse Waterschapsbank N.V.

NIBC Bank N.V.

Triodos Bank N.V.


Work highlights

  • Advising Commerzbank on the financing of a solar park in Haarstdiek in the Netherlands.
  • Advising ABN AMRO Bank and Rabobank on the financing of Rendo, one of the key parties in the Dutch glass fibre market.
  • Assisting ABN AMRO Bank with the financing of the wind park located at the breaker dams of the Delfzijl port.

Netherlands > Transport Tier 2

Stek has a strong focus on the aviation sector, handling transactional work, leasing issues, and the financing of commercially operated aircraft, business jets, helicopters and flight simulators. The practice, which handles both domestic and international matters, is well versed in aviation legislation and provides regulatory advice to clients, as well as handling contentious matters. Practice head Jeroen Timmermans handles cross-border deals and contract work.

Practice head(s):


‘We collaborated with Stek over the past few years on several transactions and they have always been very professional and diligent’.

‘The team is very proactive on transactions’.

‘We worked closely with Jeroen Timmermans on various transactions and he is be available, efficient and knowledgeable’.

‘Good value for money, service is excellent, hard-working and always accessible’.

‘Jeroen Timmermans is professional, knowledgeable and attentive, with deep expertise and knowledge in the areas of need’.

Key clients

ABN AMRO Asset Based Finance

Aircastle Advisor LLC

Atlas Air

Corendon Holiday Group / Corendon Dutch Airlines B.V.


Fokker Services/Fokker Techniek

GEFA Bank GmbH

Netherlands Aircraft Company N.V. / Panta Holdings B.V.

Transavia Airlines B.V.


Work highlights

  • Advised Dutch investment company Panta Holdings with respect to the acquisition of Fokker Services B.V. and Fokker Techniek B.V. from Fokker Technologies/GKN Aerospace.
  • Advised aircraft leasing company Aircastle in respect of the lease of 15 new Embraer 195-E2 aircraft to Dutch operator KLM Cityhopper B.V.
  • Representing Polar Air Cargo LLC in third party indemnification proceedings brought forward by KLM, Martinair, Air France, Lufthansa and Thai Airways in civil damages claim proceedings in the Netherlands related to alleged cartel arrangements in the air cargo industry.

Netherlands > Banking and finance: lender or arranger side Tier 3

Stek‘s team regularly acts as local Dutch counsel to international law firms and foreign financial institutions in transactions involving Dutch borrowers and/or assets. Its client roster also includes the largest Dutch banks in the market. The firm’s work spans a number of key areas, including acquisition/leveraged finance, general corporate lending (involving a combination of lending and asset-based financing) and project finance transactions. It is also one of the few firms in the market to be notably active in healthcare/hospital financings. The practice is jointly led by Maarten van der Graaf, Frans Haak, Sharon Kaufmann and Herman Wamelink. Recent highlights included Wamelink, associate Katinka van der Brink and others advising ABN AMRO Bank and Rabobank on the financing of Rendo, which is a major name in the Dutch glass fibre market. Guy Pegels was promoted to counsel. Another key counsel of note is Marleen Veenstra, who was recently hired from ABN AMRO Bank.

Practice head(s):

Maarten van der Graaf; Frans Haak; Sharon Kaufmann; Herman Wamelink

Other key lawyers:

Guy Pegels; Marleen Veenstra; Katinka van den Brink


‘Well-qualified staff who listen carefully, are proactive and understand our interests but also our customers.’

Key clients


BNG Bank

Claret Capital Partners


Deutsche Bank

ING Bank


Limburgs Energiefonds (LEF)



Raiffeisen Bank International

Silicon Valley Bank

Work highlights

  • Advising Commerzbank on the financing of a solar park in Haarstdiek in the Netherlands.
  • Advising BNG, ING and ABN AMRO on the financing of Stichting ‘s Heeren Loo Zorggroep (healthcare) and an intercreditor agreement with the European Investment Bank.
  • Advising a consortium of lenders on the financing of Schiphol.

Netherlands > Dispute resolution: Commercial litigation Tier 3

The ‘very reliable, technically strong, efficient and client-oriented team’ at Stek handles a wide range of litigation and has notable expertise in contractual and tort-law liability, and the enforcement of court orders. Practice co-head Gerben Smit is a ‘sharp litigator’ and is recommended for transaction-related disputes. Jan Bart van de Hel, who jointly heads the team, handles banking and finance litigation, and corporate litigation. Max Hetterscheidt  has been promoted to counsel, and senior associate Simon Boersen joined from Stibbe.

Practice head(s):

Jan Bart van de Hel; Gerben Smit

Other key lawyers:

Max Hetterscheidt; Tanja Schasfoort; Simon Boersen


‘Solid expertise in arbitration and litigation’.

‘The team is pragmatic and has a very hands-on approach’.

‘Gerben Smit is a quick thinker who provides excellent strategic advice’.

‘Tanja Schasfoort is a bright lawyer and very organised’.

‘Jan Bart van de Hel provides expertise, availability and very efficient work’.

‘Jan Bart van de Hel is an excellent litigation lawyer’.

‘The team is very well balanced with a perfect mix of experience, strategic thinkers and outstanding litigators’.

‘Jan Bart van der Hel, Gerben Smit, Tanja Schasfoort and Simon Boersen are all skilled lawyers and very nice to work with’.

Key clients


Apollo Rida

Atlas Air/Polar Air Cargo



Corendon Holiday Group

Dynamic Credit Group

Komercijalna Banka

LitFin Capital Limited


Samsung SDI


Stopanska Banka

Thomas Cook (bankruptcy estate)

Total Specific Solutions




Work highlights

  • Representing Corendon Holiday Group in litigation against Sunweb/Triton claiming specific performance under a Share Purchase Agreement to close the transaction and claim damages.
  • Representing Angolan state owned company Unitel in relation to its >450m euro international dispute with Mrs Dos Santos and some of her companies.
  • Representing Airopack in multiple complex Dutch court cases against, among others, its former board members.

Netherlands > EU and competition Tier 3

Stek‘s clients benefit from the expertise of practitioners focusing on EU and competition law issues, as well as its regulated markets specialists. The firm attracts a strong pipeline of competition work in areas such as merger control, behavioural investigations and litigation. In a notable highlight, Ruben Elkerbout and Berend Reuder (who jointly lead the competition team) worked with Mattijs Baneke to assist Corendon with the second phase merger filing procedure before the ACM and Belgian Competition Authority in relation to the sale of its tour operating and Dutch airline operations to Triton Partners. Jan Erik Janssen heads up the regulated markets offering at the firm.

Practice head(s):

Ruben Elkerbout; Berend Reuder; Jan Erik Janssen

Other key lawyers:

Mattijs Baneke; Linde Bremmer


‘The specialised, dedicated and highly skilled staff members make Stek unique. It’s a true niche office in which you find partners and other members of the team that are fast-moving, flexible and available for their clients. In contrast to the large law firms, you mostly deal with partners and are never ‘handed over’ to associates.’

‘Berend Reuder is the partner at Stek dealing with competition law and is a dedicated, highly skilled and down-to-earth professional. He is not only an excellent lawyer but thinks further than the case at hand. Always one step ahead, and always there for his clients. A lawyer you can truly rely on.’

‘The Stek competition team delivers high-quality advice and service which is comparable to top law firms in the Netherlands. Thereby charging fees that are very reasonable. Exceptional value for money.’

‘Berend is able to deliver very clear-cut and pragmatic advice on a subject (ie competition) on which competitors tend to be somewhat vague.’

‘Very practical advice, great training skills.’

‘Berend Reuder was very easy to work with, he quickly understood our business and corresponding needs.’

Key clients

Abacus Medicine A/S – Pluripharm

Atlas Air

Bluestar Adisseo Nutrition Group Limited





Nederlandse Vereniging van Banken / Dutch Banking Association


Samsung SDI

Netherlands > Private equity Tier 3

Stek utilises its corporate, competition and regulated markets, finance and dispute resolution teams to support private equity players and their portfolio companies on investments, acquisitions and commercial issues. The group is particularly strong in cross-border deals and is regularly engaged as local counsel by international law firms. Eelco Bijkerk, Ruben Tros and Maarten van der Graaf jointly lead the practice.

Practice head(s):

Eelco Bijkerk; Ruben Tros; Maarten van der Graaf

Key clients

3i Infrastructure

Bencis Capital Partners

BlackFin Capital Partners






Simpel/Parcom Capital

Sony Start-up Acceleration Program Europe

TowerBrook Capital Partners

Velocity Capital Fintech Ventures

Whitehelm Capital

Work highlights

  • Advised Egeria’s Evergreen Fund on the acquisition of its new portfolio company Social Blue.
  • Advising TowerBrook Capital Partners and its portfolio company The Learning Network on the acquisition of Klik Onderwijs, a service provider for educational institutions.
  • Advised 3i Infrastructure and its portfolio company Joulz on its acquisition of Zonel Energy.

Netherlands > Banking and finance: Borrower side Tier 4

Stek has a stand out reputation in healthcare/hospital financings, and it has also seen an uptick in sustainability-related project finance transactions. Elsewhere, the firm is seen by borrower clients (including large corporates and sponsor-held portfolio companies) as a go-to for advice on acquisition and leveraged finance transactions, as well as general corporate lending. The practice is jointly led by Herman Wamelink, Maarten van der Graaf, Frans Haak and Sharon Kaufmann. Guy Pegels was promoted to counsel. Another key counsel of note is Marleen Veenstra, who is a recent arrival from ABN AMRO Bank.

Practice head(s):

Herman Wamelink; Maarten van der Graaf; Frans Haak; Sharon Kaufmann

Other key lawyers:


‘Responsive and commercial.’

Key clients

BlackFin / CED Group



Gilde Equity Management

Kees Smit

Klaas Puul

Work highlights

  • Advising Gilde on the financing of its acquisition of Andus Group.
  • Advising garden furniture company Kees Smit on an asset- based financing transaction.
  • Advising the company CleanLease (provider of integrated textile products and services) on a refinancing transaction.

Netherlands > Commercial, corporate and M&a Tier 4

An outstanding boutique’, Stek is geared to support with mid-market M&A transactions, including relevant finance and competition law aspects. The team is also well-versed in corporate governance, commercial contract and corporate structuring, particularly as it concerns the energy, private equity, technology and aviation industries. Claudia Beele  recently made partner and is praised for her ‘good sense for the needs of German clients.’

Other key lawyers:

Coen Thomas; Reijnoud Homveld; Maarten van der Graaf; Dierik Cras; Eelco Bijkerk; Claudia Beele; Jasper Stek


‘Stek is an outstanding boutique law firm in the Dutch market which outperforms the traditional large firms both in terms of legal and service quality. You will find high partner attention, a business-focused approach (rather than legal lectures) and last not least a very motivated and likeable team.’

‘Claudia Beele is an outstanding young partner with excellent legal knowledge, outstanding transaction expertise and just a pleasure to work with.

‘With his vast experience, Jasper Stek is always a safe bet to work with.’

‘Good team, easy to reach, gives quick and practical advice.’

‘Claudia Beele – good sense for the needs of German clients. Friendly and down to earth.’

‘Stek run a highly committed team, which in particular is easily accessible for German cross-border matters; a growing boutique firm with professionals from the leading firms in NL.’

‘Claudia Beele as head of the German Desk has proven to be not only an excellent legal professional but also a very client-oriented and very responsive lawyer.’

‘Very efficient team which thinks outside of the box. The team was involved in a very complex global carve-out which involved the transfer of shares and notes. The team is very commercially minded and solution oriented and able to meet even very short notice deadlines of the client.’

Key clients


Bluestar Adisseo Nutrition Group Limited





Medsen Ceban


Parcom Capital

Saab AB





The Learning Network

Zenith Energy

Work highlights

  • Advised Stedin on the €200m cumulative preference shares issuance to its municipal shareholders.
  • Advised Iskes Holding on the sale of its towage and salvage activities in various ports in Europe to Boluda.
  • Advised Simpel and its shareholders on the acquisition of Simpel by T-Mobile.

The firm: Stek is an independent Dutch law firm. The firm was launched in 2005, combining expertise from leading international law firms and high-profile in-house positions. Stek brings this expertise and professionalism together in a leaner, smaller, direct and more approachable package. Stek distinguishes itself through excellent service via a focused, hands-on, personal approach. The firm prides itself in having assembled a top team of lawyers with in-depth legal and sector expertise and commercial awareness with a ‘can-do’ service attitude.

Stek’s partners have ample experience in co-ordinating cross-border projects. The firm has become a trusted partner for referral work of leading foreign law firms. Stek does not belong to any formal network, alliance or association.

Areas of practice: Stek provides legal services in four practice areas: corporate, dispute resolution, finance and competition and regulated markets.

For other specialist areas, Stek offers its clients an integrated, transparent solution by augmenting its own resources with its proven network of external specialists who have been carefully selected to operate at the same level of excellence as its own staff.

Corporate: Stek assists its clients in all types of corporate matters, such as M&A, joint ventures, restructuring, private equity and corporate governance. The firm’s commercial work includes all types of commercial contracts. In addition the firm has a strong niche in aviation and energy, and counsels on Dutch Caribbean law.

Dispute resolution: Stek represents its clients in administrative and civil courts, in arbitration and in alternative dispute resolution proceedings. Its lawyers have considerable experience in devising effective means of dispute resolution and avoidance of litigation.

Finance: Stek represents financial institutions and corporate clients regarding all aspects of domestic and international financial transactions, from syndicated lending to acquisition finance and trade finance transactions, and from structuring investments to providing advice on restructuring and insolvency law transactions and regulatory and compliance issues.

Competition and regulated markets: Stek assists its clients with the full range of European and Dutch competition and regulatory matters. The firm is a market leader in the energy sector, and has strong expertise in other regulated markets, such as agri-food, health care, aviation and water. Its lawyers represent companies before various competition authorities, regulators, policy makers and in court.

Aviation Jeroen Timmermans
Competition and regulated markets Ruben Elkerbout
Competition and regulated markets Jan Erik Janssen
Competition and regulated markets Berend Reuder
Corporate Claudia Beele
Corporate Eelco Bijkerk
Corporate Dierik Cras
Corporate Maarten van der Graaf
Corporate Reijnoud Homveld
Corporate Jasper Stek
Corporate Coen Thomas
Corporate Jeroen Timmermans
Corporate Ruben Tros
Dispute resolution Dierik Cras
Dispute resolution Ruben Elkerbout
Dispute resolution Jan Bart van de Hel
Dispute resolution Jan Erik Janssen
Dispute resolution Gerben Smit
Dispute resolution Jasper Stek
Energy and natural resources Claudia Beele
Energy and natural resources Reijnoud Homveld
Energy and natural resources Jan Erik Janssen
Energy and natural resources Coen Thomas
Finance Maarten van der Graaf
Finance Frans Haak
Finance Sharon Kaufmann
Finance Herman Wamelink
Private equity Eelco Bijkerk
Private equity Maarten van der Graaf
Private equity Ruben Tros
Public law Jan Erik Janssen
Mattijs Baneke photoMr Mattijs BanekeMattijs Baneke is an attorney in the Competition & Regulated Markets group of Stek. Mattijs…
Merijn Batteram photoMr Merijn BatteramMerijn is an associate in Stek´s finance department.He advises financial institutions and…
Claudia Beele photoMs Claudia BeeleClaudia is a partner in Stek’s corporate group. She advises clients in…
Eelco Bijkerk photoMr Eelco BijkerkEelco is a specialist in corporate law. He advises private equity firms,…
Simon Boersen photo Simon BoersenSimon is a determined and experienced litigator. His practice covers the full…
Linde Bremmer photoMs Linde BremmerLinde Bremmer is a senior associate in our Competition & Regulated Markets…
Dierik Cras photoMr Dierik CrasDierik is partner and active in corporate and commercial transactions and advice,…
Ruben Elkerbout photoMr Ruben ElkerboutRuben Elkerbout is partner in our Competition & Regulated Markets team. He…
Frans Haak photoMr Frans HaakFrans Haak is a partner in Stek’s finance group. He specialises in…
Max Hetterscheidt photoMr Max HetterscheidtMax is counsel in the dispute resolution department of Stek. He has…
Reijnoud Homveld photoMr Reijnoud HomveldReijnoud is a partner in Stek’s corporate group and has ample experience…
Veii Jacobs photo Veii JacobsVeii Jacobs is a senior associate in the Competition & Regulated Markets…
Jan Erik Janssen photoMr Jan Erik JanssenJan Erik is a partner at Stek and has ample experience in…
Sharon Kaufmann photoMs Sharon KaufmannSharon Kaufmann is a partner in Stek’s finance group. She specializes in…
Berend Reuder photoMr Berend ReuderBerend Reuder is partner in the practice group Competition and Regulated Markets.…
Gerben Smit photoMr Gerben SmitGerben is a every inch a litigator who stands out because of…
Jasper Stek photoMr Jasper StekJasper is a partner in Stek’s corporate and commercial team. He represents…
Jeroen Timmermans photoMr Jeroen TimmermansJeroen specializes in corporate and finance transactions, with a special focus on…
Ruben Tros photoMr Ruben TrosRuben is a partner in Stek’s corporate group and has ample experience…
Stéphanie Verhelst photoMs Stéphanie VerhelstStéphanie Verhelst is an associate in Stek’s finance group, specialising in finance,…
Herman Wamelink photoMr Herman WamelinkHerman Wamelink is a Partner in Stek’s finance group, specialising in large…
Jan Bart van de Hel photoMr Jan Bart van de HelJan Bart is an expert in commercial and corporate dispute resolution. His…
Katinka van den Brink photo Katinka van den BrinkKatinka van den Brink is a senior associate in Stek’s finance group.…
Maarten van der Graaf photoMr Maarten van der GraafMaarten is a partner at Stek and focuses on corporate and finance…
Number of lawyers : 53