same here: Xing message:
Sir,

My name is peter scott am a consultant based in California USA. One of my clients who is equally a US Citizen is interested in investing in
your company and thereby become a partner and share holder in your company. If you are interested in having an investor that will boast
your company financially, do contact me through my private email to enable me link you to the Investor.

Regards
peter scott
Email: peterscott726@yahoo.com

Also got it through XING:

Arnold Smith wants to connect with you on XING.
"My name is Arnold Smith Am interested in doing business with you. Please, call me on + 1 213 632 8988 Email: arnoldsmith651@yahoo.com Regards Arnold Smith"

Spam - ignore.  Do not click on the link in the email.

same here, message via xing
the message was

My name is Frank Wright
Am interested in doing business with you.
Please, call me on + 1 213 632 8988
Email: fwright323@yahoo.com
Regards
Frank Wright

am treating as junk - but given the different names it looks like some kind of scam

Same here. this email is from Xing.
"My name is Frank Williams. Am interested in doing business with you. Please, call me on + 1 213 632 8988"

I have ignored this junk email.

This number came up in an email, purportedly from Xing, though the name was Gray Jason:

"My name is Gray Jason Am interested in doing business with you. Please, call me on + 1 213 632 8988 Email: grayjason435@yahoo.com Regards Gray Jason"

After a search of Xing, found no-one by that name.

They write networking sites and the persons name is actually the name of an award.
Their name is Williams Wright.
Also a lot of other numbers that are close to this one.