How can I make this sentence better? or is it ok?

The group offers organizations and companies access to their network of volunteers, resources to create any community-focused promotional event, and cause marketing strategies.

The sentence structure is okay, but I'm not sure what "cause marketing strategies" are. What is "cause marketing?"

Actually, I would write this as two sentences:

The group offers organizations and companies access to their network of volunteers. They also offer resources to create any community-focused promotional event and can help with marketing strategies.

To improve the sentence, you can consider restructuring and rephrasing it as follows:

The group provides organizations and companies with a wide range of benefits, including access to their extensive network of volunteers, resources for organizing community-focused promotional events, and effective cause marketing strategies.

To make the sentence even better, you could provide more specific information about the benefits of accessing the network of volunteers, such as the ability to leverage specialized skills or to reach a larger audience. Additionally, you could mention some examples of community-focused promotional events or explain the impact of using cause marketing strategies.