Wondering who else is in the field of construction or engineering/ architectual, or manufacturing engineered products.
*Also, any suppliers / vendors should chime in.
These are arguably the most productive fields of work and probably make up a large portion of the worlds commerce.
Let's just start with who's who in this, and go from there

*This is for everyone from site surveyors to the cable installation guy, and everything in between.
Summary from below posts of Trade / User
So we have-
Estimating / Project ManagementPhraust - General Contractor Estimation, Project Management, (5 Years) Residential / Commercial / Govt.
WiseOldOwl - Underground Utilities Estimating, Plumbing Estimating, Project Management - Residential / Commercial / Govt.
Drywall / CarpentryPhinnaeus Gage - Extensive Experience and Job Portfolio (Reclaimed Wood Products and Supply also)
PlumbingWiseOldOwl - Extensive Residential Experience and Job Portfolio, Light Commercial and Small Commercial Portfolio
Electricalrjk - Medium and low voltage wiring; residential, commercial, and industrial. Life Experience
dreamwatcher - Electrical Engineer, Design of Electrical Systems (Like that of a car), 25+ Yrs Exp., Expecting Degree in Network Specialization
TechniciansAbelsFire - Advanced Operations Technician (nuclear/etc.), Robotics design, Factory Maintenance, Earning Electrical Engineer Degree
Valalvax - Industrial Technician, working knowledge of electrical, hydraulic, and pneumatic systems as well as PLCs
Handyman - General Maintenanceedd - General Handyman in plumbing, electrical, HVAC. No Formal Title/License but 15+ years personal experience (DryCleaning Shop)
Demolitionhonest bob - Demolition, some welding knowledge, Equine / Farm Work - Currently working in lumber yard, and laying flooring, Forklift