A ranking based on an original survey of sales revenue by business segment at construction consulting firms whose fiscal years ended at the end of 2025 has been published, highlighting the leading companies in each segment and providing clues about future market trends.
Rankings by sales revenue for each business segment were compiled for major construction consulting firms nationwide, based on their financial results for 2025. The report organizes trends among the leading companies in each segment to identify the companies with strong positions in specific fields.
The article presents trends across multiple specific segments. In the water supply and industrial water segment, it introduces a headline stating that 日本工営 rose to 3rd place, while it also contains information that 日水コン was unable to maintain its leading position despite recording revenue growth for 3 consecutive periods.
In the tunnel segment, 日本シビック is reported to have returned to the top 3. In the construction planning segment, a headline states that 建設技術研究所 maintained its leading position after recording 40% revenue growth. Trends among the leading companies in other segments, including ports and airports, railways, and sewerage, are also presented, highlighting changes in the companies’ overall sales structures.
Along with the segment-by-segment ranking results, the article organizes the movements of leading companies as examples for analyzing future market trends. It is structured to allow readers to assess the strengths of potential investment targets in each business segment.