• https://www.certifiedcropadviser.org
• https://www.deere.com/en/ag-tech-program/
• https://www.caseih.com
• https://www.precisionag.com
• https://www.irrigation.org
• https://www.claas.com
• https://agriculture.newholland.com https://info.cnhindustrial.com/toptech
• https://www.nvidia.com/en-us/training
• https://cloud.google.com/certification
• https://aws.amazon.com/certification
• https://www.tensorflow.org/certificate
• https://www.ieee.org
• https://www.redhat.com
• https://learn.microsoft.com
• https://www.faa.gov/mechanics
• https://www.faa.gov/mechanics/become/ia
• https://www.faa.gov/licenses_certificates/airmen_certification/
• https://www.ncatt.org
• https://www.faa.gov/mechanics/parts_147/
• https://smrp.org/Certification/CMRT
• https://as91xx.com
• https://www.boeing.com/services/training  
  https://services.boeing.com/training-solutions/maintenance-training
• https://www.faa.gov/uas
  https://www.faa.gov/licenses_certificates/airline_certification/amts
  
• https://www.ase.com
• https://www.epa.gov/mvac
• https://www.tesla.com/start
  https://www.epa.gov/mvac/section-609-technician-training-and-certification-programs
• https://www.i-car.com
• https://macscertified.com
  https://macsmobileairclimate.org/about-609-certification/
  
• https://www.gm.com/careers/asep
  https://experience.gm.com/certified-service/bring-us-your-talent
  
• https://www.fordasset.com
  https://www.newfordtech.com/Programs/Asset/Overview
  
• https://www.stellantiscap.com
  https://www.mopar.com/en-us/mopar-cap.html
• https://www.hondapact.com
• https://www.toyotatpat.com
  no alternative link
• https://www.subaru-u.com
• https://www.bmwstep.com
• https://www.mbusa.com
• https://www.vwacademy.com
• https://abycinc.org
• https://www.nmma.org
• https://yamahaoutboards.com/en-us/maintenance/university
• https://www.mercurymarine.com
• https://www.uscg.mil
• https://www.nmea.org
• https://www.volvopenta.com
• https://www.brp.com
• https://www.suzukimarine.com
• https://www.epa.gov/lead
• https://www.osha.gov/training
• https://www.ifma.org/credentials/cfm
• https://www.usgbc.org
• https://www.bicsi.org
• https://www.hilti.com
• https://www.nicet.org
• https://www.aeecenter.org/certified-energy-manager
• https://smrp.org/Certification/CMRP
• https://www.nfpa.org/70E
• https://www.netaworld.org
• https://www.ul.com
• https://www.solarenergy.org
• https://www.bzee.de
• https://www.cpse.org
• https://bccbonline.org/ccp/
• https://www.ashrae.org
• https://www.nabcep.org
• https://www.ifma.org/credentials/fmp
• https://www.afe.org
• https://www.theboc.info
• https://www.epa.gov/section608
• https://www.ciaqm.com
• https://www.bomi.org
• https://www.ifma.org/credentials/sfp
• https://www.profmcommission.org
• https://www.cfsp.org
• https://www.isa.org
• https://www.epa.gov/watersense
• https://www.bcxa.org
• https://www.servsafe.com
• https://www.haccp.org
• https://www.fda.gov
• https://smrp.org
• https://www.3-a.org
• https://cfesa.com
• https://www.apwa.org
• https://training.fema.gov
• https://www.ashe.org/chfm
• https://www.ashe.org
• https://www.ahe.org
• https://www.aami.org/certification
• https://www.aorn.org
• https://www.jointcommission.org
• https://www.ahlei.org
• https://www.ahlei.org/certifications/cle/
• https://www.phta.org
• https://www.issa.com/certification
• https://www.ieha.org
• https://www.gbac.org
• https://www.nfpa.org
• https://www.api.org/icp
• https://www.landscapeprofessionals.org
• https://www.turfgrasssod.org
• https://www.isa-arbor.com
• https://www.stma.org
• https://www.nccer.org
• https://www.asme.org
• https://www.nace.org
• https://www.cffp.org
• https://cfesa.com/certification/
• https://www.ckv.org
• https://www.hobartcorp.com
• https://www.manitowocice.com
• https://www.truemfg.com
• https://www.trucking.org
• https://www.transit.dot.gov
• https://www.awwa.org
• https://www.netaworld.org
• https://www.epa.gov/dwreginfo
• https://www.epa.gov
• https://www.abpa.org
• https://www.fanucamerica.com/training
• https://new.abb.com
• https://www.motoman.com
• https://www.universal-robots.com
• https://www.robotics.org
• https://www.kuka.com
• https://www.siemens.com
• https://us.mitsubishielectric.com
• https://www.staubli.com