Yes in fact many professional pilots hold multiple types of pilot licenses concurrently and doing so is not only possible but quite common and practical. Each license type (for example a Private Pilot License (PPL) a Commercial Pilot License (CPL) and an Airline Transport Pilot License (ATPL)) serves different privileges and operational roles, and often pilots build their qualifications step by step.
Different purpose licences: Someone may hold a PPL for recreational flying and a CPL for commercial operations. Similarly a pilot might have a fixed wing license (aeroplane) and also a rotary wing license (helicopter). The regulatory framework allows separate ratings and certifications for different aircraft categories.
Sequential upgrades and endorsements: A typical progression is from a Student Pilot License (SPL) to a PPL then onward to a CPL and eventually to an ATPL. The lower level licenses don’t necessarily expire when you upgrade so a pilot might retain their PPL alongside a CPL or ATPL depending on choice and regulatory requirements.
Category and class differences: Even within one license type pilots can add ratings for instance instrument flying rating (IFR) multi engine rating night rating or type certifications. In many jurisdictions those are logged as endorsements or additional certificates attached to the core license so pilots effectively have multiple capabilities under a single license or multiple licenses/rating combinations.
Regulatory and medical requirements: Each license or rating may carry its own training experience continuing proficiency examinations renewal and medical fitness requirements. Holding more than one license means you must meet all relevant maintenance and renewal obligations.
Cost and effort: Earning and maintaining multiple licenses is expensive and time intensive requiring flight hours ground school exams and recurrent checks. Many pilots balance which licenses or ratings they actually need for their flying goals or commercial objectives.
Strategic value: Having multiple licenses can increase a pilot’s flexibility and career options for example flying helicopters in one role and small fixed wing aircraft in another or switching between private and commercial flying duties.
yes you can hold multiple pilot licenses or ratings simultaneously and many pilots do so to expand their versatility and career choices.