Yes, as long as these third party solutions adhere to GDPR guidelines on data processing and storage. Personal data can only be transferred outside of the EU to countries that satisfy the adequacy requirement or if you can assure an adequate level of privacy protection through Binding Corporate Rules.
Binding Corporate Rules are the EU gold standard for data privacy. BCRs allow multinational companies to transfer personal data from the European Economic Area (EEA) to their affiliates located outside of it, which do not ensure an adequate level of protection. The BCRs must be in line with the requirements of the Article 29 Working Party (on BCR):
To ensure approval for their BCRs, companies must choose a lead data protection authority to approve BCRs and coordinate securing approval from other relevant data protection authorities.