US User Day 2026

Tuesday, November 3rd – Alexandria, Virginia

Our US User Day 2026 in Alexandria brings the CostPerform community together to connect, learn, and share practical experiences.

Designed for existing CostPerform users, the event will focus on helping you get more value from your costing environment. You will explore how to improve cost transparency, strengthen resource allocation, and support better financial decision making.

Through a mix of customer stories, product insights, and interactive sessions, you will gain ideas you can apply directly in your daily work, while learning how peers continue to evolve their models and processes.

Join us on November 3rd and take the next step with CostPerform.

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Don’t Miss our Second US User Day

By filling out this form, you are registering for our US User Day 2026.
We will keep you informed with updates by email as well as on this page.

Trusted by industry leaders:

Agenda 2025*

Time	Track	Speaker
08:30 - 9:00	Walk-in/Welcome
09:10 - 09:55	Opening Remarks	By Sander den Hartog, CEO at CostPerform
10:05 - 10:50	Mindset of the DOGE with Skillset of Cost Modeling	By Ted Vagias, David Christopher & Lim Vermeer, Mason Harriman Group
11:00 - 11:45	Reporting in the New CostPerform Insights	By Aleid Ruys, Product Expert at CostPerform
11:45 - 12:45	Networking Lunch
12:45 - 13:30	Multiple Models for Multiple Use Cases: A Live Study Case from PGGM	By Aswin Ruijter, Sr. Business Controller at PGGM
13:40 - 14:25	CostPerform Product Roadmap	By Bert-Jan de Gier, CTO at CostPerform
14:25 - 15:00	Refreshment Break
15:00 - 15:45	Hidden CostPerform Gems	By Team CostPerform
15:55 - 16:15	Closing Remarks	By Sander den Hartog, CEO at CostPerform
16:15 - 17:30	Drinks & Bites

*Please note that the agenda shown reflects last year’s event. A similar structure is expected for this year, with the 2026 agenda currently being finalized and updated once confirmed.

*Curious who is leading each session? Visit the “Meet the Speakers” section, which will be updated in the coming weeks.

What to expect?

Connect with the Community
Meet fellow CostPerform users,
exchange experiences, and build connections with peers.
Learn from Real User Cases
Gain practical insights from customer stories and expert sessions, focused on how CostPerform is applied in real business environments.
Uncover New Insights
Explore practical approaches to increase cost transparency, optimize allocations, and strengthen decision making.
Get more out of CostPerform
Deepen your understanding of the platform and learn how to further develop your models, processes, and overall cost management approach.

4.3/5 (56 ratings)

on Gartner Peer Insights
as of July 2026

Trusted by many leaders:

"Last year’s US User Day felt like the start of something special. This year, we build on that. A sharper agenda, deeper conversations, and the same strong community spirit. I’m excited to get everyone back in the same room and take it a step further together."

– Sander den Hartog, CEO at CostPerform

What's in it for you?

Masterclass sessions with practical CostPerform

use cases

Connect directly with fellow CostPerform users

Insights from experienced speakers and industry experts

Lunch, coffee, and
relaxed networking

Meet the Speakers

Sander den Hartog

CEO at CostPerform

Sander brings a unique combination of deep costing expertise and an energetic, engaging style that many in the CostPerform community already know well. As CEO of CostPerform, he has guided countless organizations in rethinking how they approach cost allocation and financial insight.
At the US User Day, Sander is looking forward to reconnecting with familiar faces and continuing the conversations that matter most. He challenges conventional thinking while keeping discussions practical and grounded in real world application. Expect clear, experience driven insights on how finance leaders can approach costing in a smarter way, and how even small shifts in mindset can create meaningful impact across an organization.
You will not want to miss the opportunity to hear from him again.

Mahmoud Ashmawy

Senior Director at OnPoint Advisory

Mahmoud is a Chartered Accountant and expert cost modeller passionate about financial clarity and strategic decision-making. As Senior Director at OnPoint Advisory, he leads specialist teams helping organizations bridge the gap between budgets and real-world decisions. With experience across healthcare, telecoms, government, and technology, Mahmoud is a trusted advisor known for turning financial complexity into clear, actionable insight and enabling confident, value-driven growth.