Talking about a company, a bank in this case (Antares Bank), I am not sure about this sentence.
Antares Bank, a new bank started up from scratch.
OR have I to say
Antares Bank, a new bank starting up from scratch.
The context is important. In this sentence "started" is needed. As you opriginally asked, it looked like a part-statement - "I worked with xxxx Bank, starting from scratch".
In my CV I write:
Antares Bank, a new bank started up from scratch - as Project Manager I developed plans and ....
Big Bank, a retail banking - as Business Analyst I introduced innovative...
I do not work any more for Antares Bank where I worked for in 2002.