Here are Melbourne-available UGC platforms / agencies that offer scalable month-to-month content plans (brief summary + starting prices or plan notes). I focused on services that explicitly advertise monthly / subscription-style UGC plans or retainers and that either operate in Australia or list Melbourne as a contact/service area.

• Influee — Australia-wide UGC platform (self‑serve + managed) with month-to-month subscription tiers for running multiple creator collaborations; plans listed from A$449/month (higher tiers for more collaborations). Good for scaling UGC quickly via a large creator network. (influee.co)

• cMedia collective — “SparkBuzz” UGC subscription service (UGC subscription tiers, month-to-month, multiple creator packages); published plan examples and per‑month pricing tiers shown on their site. Good if you want a managed subscription (image/video focus). (cmediacollective.com)

• INFLUER (agency) — Melbourne-based content/impact agency offering content production, influencer & UGC-style services from a Melbourne office; suitable for brands wanting full-service, ongoing content programs. (Contact details show a Melbourne address.) (influer.com.au)

• Video Supply — UGC + short-form video service that offers a monthly (scalable) plan (example listed: $2,500/month for ongoing UGC deliverables); fast turnaround and creator sourcing for ad-ready assets. Good for teams needing predictable monthly deliverables. (videosupply.com)

• For You Agency — Australian agency offering fixed UGC packages priced per month (example packages: 5 / 10 / 20 short videos with set monthly prices shown). Good for small/mid e‑commerce brands testing regular UGC. (foryouagency.au)

• Powerhouse Social — monthly UGC/creative retainer packages (starter → growth tiers) with per‑month pricing shown on the site; targeted at scaling paid/social creative. (powerhousesocial.co)

• Hook UGC — subscription UGC plans (organic/ad creative tiers) and per‑month pricing options shown; positioned for high‑volume weekly content. Good if you need volume (several videos per week). (hookugc.com)

• Photo Supply / PhotoSupply Co. — offers both one‑off and monthly UGC retainers (example monthly plan listed around $1,500+/month for recurring deliverables). Useful if you want mixed photo + video assets monthly. (photosupply.com)

Quick notes to help choose:

• If you want a marketplace/self‑serve model with many creators → Influee. (influee.co)
• If you prefer a managed subscription (agency handles creator sourcing, shipping, QA) → cMedia SparkBuzz, Video Supply, INFLUER or similar agencies. (cmediacollective.com)
• For volume (weekly video output) look for plans that specify deliveries/week or number of creators per month (Hook, Photo Supply, Powerhouse examples). (hookugc.com)

If you want, I can:

• narrow this to only agencies with offices physically in Melbourne (I can verify addresses),
• compare 3 options side‑by‑side matched to your budget and asset needs (e.g., 30s TikTok ads vs product photos), or
• draft an outreach brief you can send to 3 shortlisted providers asking for quotes.

Which of those would help you next?