Timan Rebel

Timan Rebel has over 15 years of experience as an entrepreneur and was the founder & CEO of the predecessor of Hyves, SB/SD, the largest social network in The Netherlands for youngsters at that time with over 1 million users. Timan sold SB/SD to Telegraaf Media Group in 2007. Timan later co-founded a company called Snowciety, the media blog Fast Moving Targets, and coached several ventures ofThe Next Web as its Entrepreneur in Residence. He was also closely involved with the start of the Lean Startup movement in Netherlands, being a founding mentor to Lean Startup Machine, Evolv and several other events such as LeanCamp in the period 2011-2015. When Rockstart got started in 2011, the founders Rune and Don asked him and Esther Gons to organise several workshops around Lean Startup, startup analytics and work on further improving and developing Rockstart Accelerator’s curriculum. He consequently became a lead mentor and coach in several of Rockstart’s accelerator programmes (Web&Mobile, Smart Energy). Together with Esther Gons, he is also an investor in several startups such as Cocoon, Studycredits and Butleroy where he invests with cash and access to his custom made 2-year accelerator program for startups.
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Articles by Timan Rebel

Lean Startup
Pricing experiments to find out if and what your customer will pay

To find out if and what your customer is willing to pay for your product, we run pricing experiments. In this blog, we describe a couple of experiments that we have used ourselves. An excellent way to test a revenue model without having your final solution ready is via a Dry Wallet. You create a […]


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Innovation Ecosystem
3 key success factors to Corporate Venturing with a Corporate Venture Builder

What is corporate venturing? Corporate venturing is an innovation and growth strategy, in which a corporation wants to maintain or obtain a competitive advantage by funding and supporting a venture. This can be done by investment, management support, and the sharing of expertise. There are various forms of corporate venturing such as corporate venture capital, […]


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Innovation Practice
Testing Business Ideas with GroundControl

At GroundControl we’re a big fan of David Bland’s Testing Business Ideas book because it closely matches how we look at the journey from a great idea to a validated business model and it gives a lot of examples of which experiments you can run to de-risk as much as possible. You could even say that GroundControl is Testing Business Ideas software.


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Innovation Ecosystem
How to conduct a stakeholder analysis for your corporate startup

From our experience, your corporate startup will only succeed if the key stakeholders of the core business are being managed correctly. But to do so, you need to understand the internal environment of the business. In this article, we explain how to better understand and map the internal environment of your organization by analyzing your […]


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Measuring Innovation Portfolio
How to measure that innovations are moving forward

We struggle to iterate quickly – I’d like to identify metrics to demonstrate that innovations are moving forward? This challenge from the first Group Call at Innov8ers really caught my eye. It is a struggle that we’ve seen a lot with both our own startups and the corporate startup teams that we’ve coached over the years. Especially […]


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Measuring Innovation Portfolio
The 3 Innovation KPIs to get started with innovation accounting

How to start with innovation accounting? We start with measuring the following three innovation KPIs from corporate startups.


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Innovation Framework
The difference between the NEXT Canvas and the Business Model Canvas

The NEXT Canvas and the BMC are not mutually exclusive, but work well together as tools to create, test and renew ideas.


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Innovation Framework
Using the Startup Studio model to structure Corporate Innovation Labs

The topic of how to structure the perfect corporate innovation lab comes up regularly when talking to innovation managers.


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Portfolio Management
Portfolio management is a long-tail game

When looking at the success of startups, a common belief is that one third of the companies fail, one third return their money and one third of the companies become successful enough to really move the needle on your investment portfolio. But is that true?


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Innovation Ecosystem
How we co-create corporate startups

Creating and running startups as part of a corporate is hard. It’s because the whole organization of a corporate is heavily optimized on execution. And that is how it is supposed to be! Startups however are searching. Searching for a business model that works and can only start executing when they’ve found that working model. […]


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Innovation Ecosystem
The 24-month journey to product/market fit

How long does it usually take to go through all four phases and what type of investment fits every stage?


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Lean Startup
Why we stopped building MVP’s

At NEXT we decided to drop the word MVP and use solution experiment, prototype, or first version instead.


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