Build software with a partner who shows up when the stakes are high.
Trusted by 300+ companies like
Built for complexity. Ready to work.
Expectations are high, timelines are tight, and the work needs to be done right. That’s where SEP comes in.
We partner with teams to research, design, and build software that fits complex environments and day-to-day workflows. We listen first, ask the right questions, and bring deep expertise to every stage of the work.
As needs evolve, we stay engaged, ensuring the software supports what matters most.
Custom Software Development Services

“SEP always delivers quality results.”
We’ve worked with SEP for more than 30 years, and they always deliver quality results. SEP is open and transparent, thriving in the industry ‘the right way’ by being honest and technically competent. They have a deep bench of technical people who can tackle ambiguous projects. This is the right way to do business and ensures we continue coming back when we need technical and software engineering help.
Grounded in experience.
Always moving forward.
Since 1988, SEP has partnered with organizations that depend on software to do meaningful work. We are an employee-owned team of engineers, designers, and product thinkers who value long-term relationships.
At the same time, we stay curious. We explore new tools, test emerging ideas, and evolve how we work as technology and expectations change. That balance shapes everything we do, from modern cloud platforms and AI-driven products to the day-to-day ways we collaborate with client teams.
The result is a partner you can count on and grow with, grounded enough to be reliable and adaptable enough to keep pace with what’s next.








