vertical integration
vertical combination

Still, would not such a move be just another form of vertical integration?

In the media industry, no one is questioning vertical integration.

The vertical integration of the Japanese companies is a real concern.

On vertical integration in the Commission, two main points must be noted.

Through the process of vertical integration, the company came to own more than just the main steel plant.

Many investors also try to reduce risk by vertical integration.

Today, of course, it's hard to find anyone who will defend vertical integration.

From payroll management to movie special effects, vertical integration is out.

Even so, vertical integration may sometimes give rise to competition concerns.

And some measure of vertical integration might even be making a comeback.