For a office? Do it at home. For people? 50k is nothing. You get half an engineere for a year.
50-100k can mean that you have friends working with you, or it can be that you moved back to your parents to work fulltime on it.
It is such a small number in the business world, its strange that someone thinks that 100k can make a real difference.
If you think a minute about that sentence, I think you'll realize that that depends on where those engineers live.
100K€ can allow 2-3 people to quit their jobs to work (for a year on low pay) on the features requested by their paying customers, or hiring an offshoring firm to build what they can't, or just having money to apply for government grants or cover real-world business expenses (provisional patents, technical infrastructure, lawyers, accountants, promotion).