There is a thread in Twitter about good examples of ethical codes in technological companies. An interesting example is from Sage UK, you can find the code here: The Ethics of Code: Developing AI for Business with Five Core Principles

You can answer straight to Alan Winfield via Twitter:

As part of a survey of ethical governance in tech companies I want to collect examples of companies with strong and transparent (i.e. published online) ethical codes + process. Please RT and/or reply with examples of good practice. @robmccargow @KayFButterfield @johnchavens

— Alan Winfield (@alan_winfield) January 19, 2018