SAN FRANCISCO (Reuters) - Uber Technologies Inc [UBER.UL] and some smaller technology companies are launching campaigns to publicize Obamacare enrollment among their contract workers after the Trump administration slashed government marketing for the health program by 90 percent.

Freelance and contract workers are an important part of the workforce for many Silicon Valley companies, including drivers at Uber and rival Lyft Inc, and technology companies also have been among the most vocal in confronting Trump administration policies - particularly immigration - that they perceive as hurting their workforce.