He cited that company as an example of success.
business inquiry; commercial enquiry; expression of interest
Business use for an inquiry or approach about a product, order, deal, or possible transaction; common with 引き合いがある, 引き合いが来る, and 引き合いを受ける.
Many inquiries about the new product are coming in from overseas distributors.
summons to court; witness
Legal or older-document use for being called to appear in court, or for a witness; not a common everyday meaning, and modern Japanese would usually use more explicit legal terms such as 呼び出し or 証人.
In older legal contexts, 引き合い can refer to a summons to court or to a witness.
pulling against each other; pulling from both ends
Literal noun sense from the idea of opposing pulls. This meaning is much less common than the citation and business-inquiry uses; in everyday speech, 引っ張り合い is often clearer for physical pulling.
In an explanation of tug-of-war, 両側からの引き合い refers to both sides pulling in opposite directions.
There were a lot of inquiries about the new product.
An inquiry came in from an overseas company.
We received several inquiries from business partners.