A family of brands in service of the licensed professions.
Six specialized continuing-education platforms for Professional Engineers, Land Surveyors, and Geologists — professionally owned, professionally operated, and anchored by Online-PDH.com, in business since 2009.
A specialized brand for every discipline we serve
One flagship with seventeen years of trust, and five discipline-focused platforms that bring that same standard to each profession individually.
Online-PDH
The flagship. Since 2009, the trusted source for self-paced PDH courses spanning every major engineering discipline — 800+ titles and 4,500+ hours of instruction.
SurveyorCE
Continuing education built for Professional Land Surveyors — boundary law, geodesy, GNSS, and modern mapping, aligned to state board requirements.
ElectricalCE
Discipline-focused PDH for electrical PEs — power systems, code updates, protection, controls, and renewable interconnection.
CivilCE
The civil engineer’s CE library — structures, transportation, water resources, and construction practice in one place.
MechanicalCE
PDH for mechanical PEs — HVAC&R, machine design, piping, and energy systems, taught at working-engineer depth.
GeotechCE
Geotechnical CE for engineers and professional geologists — soils, foundations, slopes, and ground improvement.
Built by the licensed, for the licensed
Most continuing-education companies are education companies first and engineering companies second — or never. Cadistics is the inverse: a licensed Professional Engineer owns and operates every brand in this portfolio, and every course is developed under the same published standard.
That structure is deliberate. A single entity, a single standard, and a single reputation behind six brands means there is no course in this family we would not put our own license behind.
“In seventeen years of operation, we have never had a single course denied by any state board — for any reason.”
What every brand in the family guarantees
PE-authored & reviewed
Courses developed by licensed PEs and tenured professors with 200+ years of combined engineering and surveying experience.
NCEES-aligned compliance
Every course is built to NCEES continuing-education guidelines and mapped against state-board requirements before release.
Preview before you pay
Our trust-based model lets professionals review any course in full before spending a dollar. The work speaks first.
Self-paced, anywhere
Downloadable, mobile-friendly courses available 24/7/365 — built around a working professional’s schedule.
Honest pricing
Flat per-credit pricing and unlimited plans that respect the professional. No subscriptions that punish, no fine print that surprises.
Guaranteed, no questions
A 100% guarantee stands behind every course in the family. If it doesn’t serve you, it doesn’t cost you.
Renewal hours due?
Start with the flagship — 800+ courses, every major discipline, and a seventeen-year record of board acceptance.