Yes, both Travis CI and Pantheon offer a Free Trial.
Travis CI is designed for Large Enterprises, Medium Business and Small Business.
Pantheon is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Travis CI Starts at $69/Month whereas for Pantheon Starts at $29/Month.
Some top alternatives to Travis CI includes Codeship, Semaphore, GitLab, CircleCI, Bamboo, Buildkite, CloudBees Core, AppVeyor and GitlabRunner.
Some top alternatives to Pantheon includes ReclaimAI, ZoomInfo InboxAI, Super, Qualified, Workvivo, AirOps, Webapp.io, OpsTech, SuperOps PSA Software, WebEnliven Solutions, DEITY Falcon, WordOps and IFTTT.