Keltikos
Keltikos
We build WordPress software, we build and run our own SaaS products, and we build SaaS for other companies.
What we do
Keltikos Software Ltd is a software company working in two closely related places: the WordPress ecosystem, and SaaS.
We write WordPress plugins and themes. We design, build and operate our own subscription products. And we build SaaS for other companies — as their development team, from architecture and first commit through to launch and the releases after it.
Services
Three things, done properly.
WordPress development
Plugins, themes and custom development, written to WordPress coding standards and reviewed with security in mind from the first commit rather than after an incident.
SaaS, built and run
Our own subscription products, taken end to end: product design, build, billing, infrastructure, and the unglamorous operational work that keeps a service dependable.
SaaS built for you
We build SaaS products for other companies, and support them once they ship: architecture, engineering, code review and security work. We plug into your product and your process, not the other way round.
About
Keltikos is a young company built on a long track record. Our founder, Stiofan O'Connor, has worked with WordPress since 2008 — long enough to have shipped software through most of the platform's eras, and to have seen which decisions age well.
- Built and maintains WordPress plugins including GeoDirectory, UsersWP and GetPaid, running on over 100,000 active sites.
- WordPress core contributor, credited in WordPress 5.4 and 5.5, and a plugin and theme developer on WordPress.org since 2011.
- Security researcher, with privilege-escalation vulnerabilities found in widely installed plugins and bounties awarded through the Wordfence Bug Bounty Program.
That background is the reason Keltikos exists: the same engineering, now applied to our own products and to the companies we work with.
Get in touch
Tell us about your product, your plugin, or the support problem you are trying to solve. We read everything that arrives.