Who is the legal entity behind Unless?

UNLESS is a trade name of Rocket Launcher BV. Rocket Launcher BV is registered with the Chamber of Commerce in Amsterdam, The Netherlands, under registration number 65190645, and its VAT number is NL856013389B01.

Where is Unless headquartered and what is the visiting address?

Unless is headquartered at Panamalaan 8-D, 1019 AZ Amsterdam, The Netherlands. This bright red building in the east of Amsterdam is the base for the team that develops and operates the Unless AI platform for customer success.

What is Rocket Launcher BV and how is it related to the Unless AI platform?

Rocket Launcher BV is the holding company founded by Marcel Panse and Sander Nagtegaal as the legal entity behind Unless. Under this entity, the team builds and operates the Unless AI platform, which helps regulated enterprises in Europe deploy conversational and agentic AI for customer success across acquisition, retention, sales expansion, and support.

Which technologies and cloud services power the Unless website and platform?

The public Unless website is built with Astro and deployed as static files to Amazon S3. The underlying Unless service uses a serverless architecture on Amazon Web Services, including S3, CloudFront, API Gateway, Lambda, DynamoDB, Firehose, Redshift, and Bedrock, and connects to AI models from providers such as AWS, Microsoft, and Google in a decoupled way.

How does the technology stack support security and compliance for regulated customers?

Unless uses a serverless, multi-model architecture on AWS that helps isolate workloads and control where data flows, which is important for regulated sectors such as finance, healthcare, insurance, and pensions. Combined with EU data residency, strong access controls, and a compliance-by-design approach, this setup supports the security, privacy, and audit requirements of European enterprises using AI for customer success.

What is the story behind the graphic pattern on the Unless website?

The jumbotron pattern on the Unless website is based on an aperiodic monotile, also known as an “einstein,” a shape that tiles the plane only in a non-periodic way. It features a polykite shape referred to as “hats,” developed through substitution, inspired by the work of David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss, reflecting the company’s interest in elegant, mathematically grounded design.

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This website

Colophon

The colophon contains a brief statement on who we are and what we used to build our website and service.

UNLESS is a trade name of Rocket Launcher (international trademarks pending). Rocket Launcher is a company registered at the Chamber of Commerce in Amsterdam, The Netherlands, under registration number 65190645 . Our VAT number is NL856013389B01.

Adresses

The company is registered at the following address.

Rocket Launcher BV
C. Kruyswijkstraat 31
1022 KJ Amsterdam
The Netherlands

However, we are headquartered at the Panamalaan, in a bright red building in the popular east side of Amsterdam. You can visit us there. Make sure to check who will be in, as we are pretty hybrid!

Unless
Panamalaan 8-D
1019 AZ Amsterdam
The Netherlands

About Rocket Launcher

Rocket Launcher was started by Marcel Panse and Sander Nagtegaal, as the holding company for their brand Unless. There is now a small, but highly effective team. Read more about the company, or check out the history of the product.

About this website and the service

This website is built with Astro and deployed as static files to S3. The underlying UNLESS service is based on a serverless architecture using S3, Cloudfront, Amazon API Gateway, Lambda functions, DynamoDb, Firehose, Redshift and Bedrock. These are all services offered by Amazon Web Services. Besides that, it uses several AI models offered by vendors like AWS, Microsoft, and Google - in a very decoupled way so that your data stays safe.

About our jumbotron pattern

An aperiodic monotile, commonly known as an ‘einstein,’ is a shape capable of tiling the plane exclusively in a non-periodic manner. Our jumbotron pattern features the first true aperiodic monotile: a shape that naturally enforces aperiodicity through its own geometry, without the need for additional constraints such as matching conditions.

The pattern incorporates a polykite, referred to as ‘hats,’ developed through multiple rounds of substitution. This work is based on the scientific contributions of David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss.

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