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Top NetSuite Consultants | 14 Picks

netsuite consultants - Top NetSuite Consultants | 14 Picks

NetSuite has evolved into one of the leading ERP platforms for growing and enterprise-level businesses—powering operations across finance, supply chain, CRM, and beyond.

Behind its success is a global community of expert consultants, developers, and architects who have not only mastered the platform’s core but also contributed to its broader ecosystem. These professionals range from prolific SuiteScript contributors and integration pioneers to founders of top NetSuite consultancies and influential community educators. Below is a curated and verified list of the most impactful NetSuite experts worldwide, selected for their technical excellence, thought leadership, and real-world implementation expertise.

  1. Marty Zigman
  2. Chidi Okwudire
  3. Eric T. Grubaugh
  4. Nick Horowitz
  5. Paul Giese
  6. Sonny Spencer
  7. Jaime Requena
  8. Jan Arendtsz
  9. Scott Henderson
  10. TJ Cornelius
  11. Tim Dietrich
  12. Brian Cline
  13. Matt Kenney
  14. René Schulte

Now, let’s delve into their remarkable journeys and contributions:

Marty Zigman

YouTube Video

Nationality: American

Marty Zigman is widely regarded as a premier NetSuite expert and co-founder of Prolecto Resources.

He holds all three official NetSuite certifications and spent over 30 years leading ERP/CRM/eCommerce system transformations at companies like Deloitte & Touche. Zigman’s influence extends through his popular Prolecto blog (launched in 2009) and free “SuiteApp” tools, where he shares SuiteScript insights and best practices. He frequently speaks on NetSuite strategy and leads a team of senior consultants at Prolecto, evidencing both deep technical skill and community leadership.

Chidi Okwudire

Sharing is how we build a stronger #netsuite community. I’d rather share and get corrected than sit on my ideas because of the fear of being wrong.

Nationality: Nigerian

Chidi Okwudire is the founder of NetSuite Insights, a popular knowledge-sharing platform and blog for NetSuite professionals.

He describes himself as an “IT professional and NetSuite specialist” and created NetSuite Insights in 2020 to fill community gaps. Okwudire is a multi-certified NetSuite consultant (often cited as 7× certified) who regularly publishes best-practice guides and industry commentary. Through his Netsuite-Insights blog and active social media (LinkedIn/Telegram groups, X, Medium), he has become a respected voice in the NetSuite developer community, raising the bar on SuiteScript and certification standards.

Eric T. Grubaugh

Eric T. Grubaugh - Top NetSuite Consultants | 14 Picks

Nationality: American

Eric Grubaugh is a well-known SuiteScript developer, open-source contributor and community builder.

A Senior SuiteCloud Developer (co-inventor of “Sustainable SuiteScript”), he co-hosts the SuiteScript Stories podcast and has written influential Medium articles (e.g. “The SuiteScript bar is too low”) on modern NetSuite development. Grubaugh is credited with raising standards for NetSuite coding practices. He frequently speaks at developer conferences, and under his leadership at Stoic Software he coaches other NetSuite devs on testability and best practices. His combined technical expertise and community influence have earned him a reputation as an ERP developer evangelist.

Nick Horowitz

Nationality: American

Nick Horowitz is a veteran NetSuite consultant and co-founder of Unity AMS, a consultancy focused on “unified” business systems.

He has been working with NetSuite since its early days (over 20 years) and holds multiple NetSuite certifications. Horowitz previously served as CFO/COO in Silicon Valley startups, co-founding a merchant credit card platform and a packaging/shipping startup. At Unity AMS he leads a team of architects and is known for using clear “chess metaphors” to explain complex NetSuite implementation trade-offs. His deep functional and technical experience and user-group leadership make him an influential figure in the NetSuite space.

Paul Giese

Paul Giese - Top NetSuite Consultants | 14 Picks

Nationality: American

Paul Giese is an expert in NetSuite data migration and reporting, and founder of OptimalData Consulting.

He has built open-source tools and templates to help businesses move legacy ERP data (e.g. Great Plains) into NetSuite. Giese maintains an active blog of detailed implementation guides (e.g. exporting trial balance data from GP) and scripts for data conversion. His public writings and SuiteAnswers contributions have helped many NetSuite customers plan complex data imports. Selected for his deep technical know-how in finance-to-NetSuite migrations and his thought leadership via OptimalData content.

Sonny Spencer

Nationality: American

Sonny Spencer is a two-time SuiteWorld speaker and experienced NetSuite architect.

As Director of Finance Operations at Veeva Systems, he has led large-scale NetSuite rollout and transformation projects. He co-hosted NetSuite technical webinars (e.g. on SuiteProjects and FP&A) and contributes to thought leadership in the NetSuite community. Spencer’s combination of deep functional finance knowledge and technical expertise in NetSuite reporting and planning tools makes him influential in the global NetSuite ecosystem.

Jaime Requena

Nationality: Spanish

Jaime Requena is CEO and founder of SuiteTooth Consulting, known for taking on “what NetSuite doesn’t build” in highly customized accounts.

He is a seasoned NetSuite consultant and solutions architect with over 15 years of experience and three SuiteCertifications (ERP, Developer, Admin). Jaime has delivered “white glove” service to 200+ global clients by designing complex customizations and performance improvements. He frequently authors technical blog posts on SuiteScript and APIs, demonstrating both coding skill and mentorship. Requena’s blend of deep NetSuite proficiency and founder-driven leadership distinguishes him.

Jan Arendtsz

Jan Arendtsz - Top NetSuite Consultants | 14 Picks

Nationality: Indian-American

Jan Arendtsz is a NetSuite pioneer and the founder/CEO of Celigo, a leading integration platform (iPaaS) for NetSuite and other cloud apps.

With a 25+ year career in software, Jan previously ran NetSuite’s integration platform as a Director at NetSuite. At Celigo he combines coding chops and product vision: he built the company’s core integration engine and continues to guide its roadmap to “simplify how companies automate processes”. Arendtsz’s startup leadership (Celigo) and technical background (UT Austin CS degree) make him one of the most influential figures in the NetSuite ecosystem.

Scott Henderson

Nationality: American

Scott Henderson is co-founder and Chief Technology Officer of Celigo.

As Celigo’s first engineer, he oversaw multiple platform transitions and today directs Celigo’s entire product engineering organization. Henderson’s 20-year tenure in enterprise software is marked by solving integration and middleware challenges: he is responsible for Celigo’s technical strategy and for enabling its engineers worldwide. He holds an EE/CS degree from UC Berkeley and has become a respected thought leader on integrating NetSuite with modern technologies. Scott is selected for his startup-to-scale-track record and hands-on expertise in NetSuite integrations.

TJ Cornelius

TJ Cornelius - Top NetSuite Consultants | 14 Picks

Nationality: American

TJ Cornelius is the founder and President of SuiteRep, a U.S.-based NetSuite consultancy.

Starting as a NetSuite admin in higher education, he launched SuiteRep to deliver “high-quality NetSuite administration, support, and development”. He emphasizes values of excellence and dependability, leading a team that optimizes and simplifies NetSuite for growing companies. Cornelius’s leadership is noted for translating technical understanding into practical business results, and his firm’s focus on NetSuite support keeps him deeply in touch with community needs.

Tim Dietrich

Nationality: American

Tim Dietrich is a NetSuite Solution Architect and co-founder of the SuiteScript Stories podcast (with Eric Grubaugh).

With experience as a SuiteScript developer and finance operations director, Tim shares practical coding tips and lessons from industry veterans on the podcast and in training workshops. His “SuiteScript by Example” blog and community contributions have earned him a reputation as an educator in the SuiteCloud Developer Network. Selected for his role in nurturing NetSuite developer talent and discussing best practices with peers.

Brian Cline

Nationality: Canadian

Brian Cline is a seasoned NetSuite developer and integration specialist with a strong background in RESTful APIs and custom app development.

As founder of ClineNet Solutions, he provides NetSuite customization services for SaaS, telecom, and services companies across North America. Cline is an active contributor on GitHub and StackOverflow, and frequently writes in-depth blog posts on SuiteScript best practices, SuiteFlow, and scripting patterns. He is known for his clarity in explaining complex development topics and for building tools that enhance developer productivity.

Matt Kenney

Matt Kenney - Top NetSuite Consultants | 14 Picks

Nationality: American

Matt Kenney is a veteran NetSuite architect and the creator of SuiteFrame, an open-source NetSuite development framework that simplifies custom app deployment.

He has consulted for dozens of venture-backed startups and was formerly a solutions architect at NetSuite/Oracle. Kenney is active on GitHub and X, where he shares engineering tips on modular SuiteScript, unit testing, and deployment pipelines. His contributions have had a lasting impact on modern NetSuite development workflows.

René Schulte

Nationality: German

René Schulte is a certified NetSuite consultant and co-founder of ERPLogik, a European consulting firm helping mid-size manufacturers and distributors. He has led cross-border NetSuite implementations across DACH and Benelux regions, focusing on multi-language rollouts, tax compliance, and localization. Schulte regularly speaks at German ERP tech forums and publishes whitepapers on international NetSuite setups. His expertise in European finance rules and NetSuite’s international modules positions him as a top regional expert.

Wrap Up

These legends represent exceptional talent, making them extremely challenging to headhunt. However, there are thousands of other highly skilled IT professionals available to hire with our help. Contact us, and we will be happy to discuss your hiring needs.

Note: We’ve dedicated significant time and effort to creating and verifying this curated list of top talent. However, if you believe a correction or addition is needed, feel free to reach out. We’ll gladly review and update the page.

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