Google penalty question

How to check weather the Corporate Websites is penalized by google or not?

Has the site been issued with a penalty notice by Google? If not, why do you think it might have been penalised?

One way to check weather the site is penalized or not is to keep checking your Search Console Manual Actions tab under Search Traffic tab. If there is any manual penalty Google will inform you about that

Go to search console Google operated tool. From there look for the message if your website is penalized by Google then you will get the message.