Software companies

how can a small software companies with less than 150 employees can implement ISO 27001 standard without much rise in the cost and budget.
 

Answer:

You can search external consultants for this job, generally you will find many prices, but maybe the cheapest option is to use templates and implement them by yourself (although you need knowledge about ISO 27001 to do this). Another good option is our templates, because we have all necessary documents, and they are developed for small and medium companies. We also give you support during the implementation of them, so can be very interesting in your case. 
This article can be interesting for you “5 criteria for choosing an ISO 22301 / ISO 27001 consultant” : https://advisera.com/27001academy/blog/2013/03/25/5-criteria-for-choosing-a-iso-22301-iso-27001-consultant/ and also this one “Do you really need a consultant for ISO 27001 / BS 25999 implementation?” : https://advisera.com/27001academy/blog/2011/12/06/do-you-really-need-a-consultant-for-iso-27001-bs-25999-implementation/
You can see our toolkit here, and you can see a free version of each document clicking on “Free Demo” tab “ISO 27001 Documentation Toolkit” : https://advisera.com/27001academy/iso-27001-documentation-toolkit/