Swiss PropTech Ecosystem About130 verified PropTech companies, 523 Founders and 3700 employees were registered till May 30th, 2021. There are still some companies which did not evaluate yet. About 47% of the audited PropTech companies are based in the canton of Zurich. The Swiss PropTech market grows slowly. Only 9 new PropTech companies were found in 2020, and there was no new founding in the first half of 2021. Covid-Measures and Home-office have impacts on the market and PropTech companies. The most investors stopped the investment process and preferred to wait for the government policy and the action of the market itself. The most of the companies reduced the cost and employees. The webinars and online meetings have negative impacts on business. Many companies could not realize that the webinars or online meetings have minimum benefits or results. The “sustainability” and “innovation” were the magic words in 2020, and they are still magic. There is no homepage, presentation or whitepapers without these words. The sustainability and ESG criteria were the most discussed topics in the real estate sector in opposite to the construction sector. The established real estate investment institutions joined the agenda 2030 for sustainable development by united nations. But they did not have the road map or the clear program for the SDGS. The most established real estate, construction and finance companies do not trust the PropTech Startups. They are still skeptical because of the unexperienced young teams and fewer use cases. Some brave investors, like insurance companies, acquire the startups to develop and use their solutions. However, the collaborations and partnerships were another important topic. For surviving a lot of startups start to work together of started to build small ecosystems (with 3 or 4 companies). It is called PropTech to PropTech. This type of cooperation or partnership describes collaboration between two or more PropTech companies. The possible reasons for collaboration were: − Building an ecosystem − Bundling products and services − Get access to client groups − Marketing and reputation − Sharing know-how and data The milestone of the global PropTech market was the development of “international PropTech standards” and the development of “international PropTech innovation evaluation method”. The research and development of the standards, guidelines, evaluation methods took more than two years. The international PropTech Standards are established by PropTech Academy in 2020. The association is a regulatory institution aimed to create international standardization and evaluation process of