The phrase "effect company" refers to a company that has a strong impact or influence on something. It means that the company has a significant effect on a particular aspect, such as the market, industry, or even society as a whole. Full definition
It's not just a matter of visual effects companies getting lazy. (engadget.com)
They're one of a team of vendors, a number of special effects companies, working together under a visual effects supervisor on the film. (businessinsider.com)
Also an important thing to note is that an increase in interest rates effects the company's book value, not intrinsic value because the company normally holds their fixed income until maturity. (basehitinvesting.com)