Yes. I assume you mean base station technology. All the big players will manufacture 5G equipment also. Notably Alcatel-Lucent, Ericsson, Nokia, Qualcomm etc.
Here's a Reuters article with some good background (and POTUS blocking Broadcom's takeover of Qualcomm)
https://www.reuters.com/article/us-qualcomm-m-a-broadcom-5g-idUSKCN1GR1IN