ReleaseWire is described as 'online newswire specializing in the needs of small to medium-sized businesses'. There are more than 10 alternatives to ReleaseWire, not only websites but also apps for a variety of platforms, including iPhone, iPad, SaaS and Blackberry. The best alternative is Rankz. It's not free, so if you're looking for a free alternative, you could try PRWeb or Prwings. Other great sites and apps similar to ReleaseWire are Drone Industry Wire (Paid), PRNEWS.IO (Paid), Data Science PR (Paid) and ePRNews (Paid).
Drone Industry Wire enables companies operating within the drone and unmanned systems industries to upload, manage, and send their press releases to other businesses and media who're interested in drones.
DataSciencePR is the global leader in the press release distribution and the digital marketing services for data science, machine learning & AI, big data, data visualization, blockchain, and technology fields.
ePRNews is the global fastest-growing Press Release Media outlet and social news distribution service. ePRNews provide Newsroom, PressRoom, Press Release Distribution and Media Services for all small to medium-sized businesses worldwide.