Or individual 3D visualizers. They single-handedly work through all stages of visualization, starting from client communication to the visualization itself and post-production.
In 90% of cases, solo players are those we describe below. 10% are well-known, specialized professionals with bookings for a year or even two ahead (today's project).
Pros:
Prices significantly lower than the market
Cons (usually):
Beginners who have just completed 3D visualization courses, which rarely provide good training
Lack of a strong portfolio with at least 15−20 works similar in level and style
Poor technical equipment
High risks of untimely or complete project failure
Inability to defend the correct artistic perspective
No legal entity
Recommendations:
Carefully examine the portfolio for quality and plagiarism