Microsoft is NOT headquartered in Seattle and Seattle's municipal government has nothing whatsoever to do with Microsoft. What's more, I previously have not read of Seattle being referred to as a "town" in over 100 years.
They're BIG libs though. Bill Gates' "charity" is a huge supporter of Planned Parenthood International, the UN Population Fund and other causes. A quick search of donor records shows about one million dollars donated to the DNC & Dem congressional committees by Microsoft employees and under $190K to Republicans across the 2008-2012 election cycles. More than eight in ten employee dollars is going to Dems.