Several reputable organizations offer certification courses for blockchain technology. The "best" certification course depends on your learning goals, background, and the area of blockchain you're interested in. Prominent options include certifications from: Blockchain Training Alliance: Offers various levels of certification, including Certified Blockchain Professional and Certified Blockchain Developer. IBM Blockchain Certification: IBM offers courses and certifications covering various aspects of blockchain, suitable for both beginners and experienced professionals. Coursera: Platforms like Coursera host a variety of blockchain courses from universities and institutions, some of which offer certifications upon completion.