Particle41 is a software engineering consultancy that embeds product, DevOps, and data teams to build and modernize applications for startups and enterprises. It offers application development, cloud-native DevOps, data engineering/data science, and fractional CTO advisory on a project or retainer basis. Founded in 2015 and headquartered in Frisco, Texas, the privately held firm works alongside client engineering leadership to deliver in-house solutions.