Best private podcast platform for business: five hosts read from their own pages

Best private podcast platform for business: the shortlist of five options

A private podcast platform for business gives each employee, client or member their own way in to a show that is not public. Five hosts state how they do that on their own pages. Castos is the host this site links to, so read its first place on the list with that in mind. The others are Podbean, Transistor, Hello Audio and Supporting Cast.

Plans were read on October 18, 2026. Prices are left out because they change and depend on billing toggles. Where a vendor shows no public price, we say so.

• Castos: up to 100, 250 or 500 private subscribers on Essentials, Growth and Pro, each with a personal feed that can be revoked. A free iOS and Android app starts on Growth. Single sign-on is on the contact-us Premium plan only. 14-day trial.
• Podbean: the Business plan lists 100 private members, private groups, SOC 2 content protection and single sign-on, with a Podbean Pro App for listeners. Enterprise, at a custom price, lists 500 private members and a white-label app option. More private members can be bought.
• Transistor: 50, 500 or 3,000 private subscribers across Starter, Professional and Business, shared across all private shows in one account. Each subscriber gets a personal feed, email notices and a web player. No branded listener app is named on the pages we read. 14-day trial.
• Hello Audio: counts private feeds, not listeners. Starter has 1 private feed, Pro has 3 and Powerhouse is unlimited, and the plans list unlimited listeners. Pro adds expiring feeds. The trial is 7 days and needs no card.
• Supporting Cast: lists internal podcasts among its offers, with single sign-on and two-factor sign-in. No public price is shown; its page offers a demo request.

Criteria for choosing: who can listen, how access ends, which app and what it costs

Four checks decide the match more than any brand name.

• Who can listen: count the people you will invite, not the plan name. Caps are in listeners at Castos, Podbean and Transistor, and in feeds at Hello Audio.
• How access ends: ask whether one person can be cut off alone. Castos and Transistor describe a personal feed for each subscriber, and Castos says a revoked feed stops episodes arriving.
• Which app: many staff already use a podcast app, since a 2026 national survey found 58 percent of Americans age 12 and older consumed a podcast in the last month. The rest need instructions or a host app. Castos and Podbean name one. Hello Audio says it has no proprietary app, and Transistor names none on the pages we read.
• What it costs: divide the monthly fee by the people you will invite. The Castos pricing guide shows the method.

Compare single sign-on, security statements and Spotify support

Single sign-on lets staff use the company login. Podbean lists it on Business, Castos on Premium only, and Supporting Cast lists it. We saw no sign-in system named on the Transistor or Hello Audio pages we read.

No host promises that audio cannot be shared. Castos's own guide says a downloaded episode cannot be retrieved or deleted. Transistor tells companies to treat a private podcast like internal email, because nothing stops sharing, and says no audio on the internet can be made completely private. Treat confidential material accordingly and ask your legal team. This is not legal advice.

Spotify is the odd app. Castos says Spotify does not support private feeds. Transistor lists Spotify as working only through its own Spotify Open Access feature, for private shows. If your staff live in Spotify, ask each vendor before you buy.

Trade-offs and switching later

Each choice gives something up. Hello Audio's per-feed model suits many listeners on a few shows, but its pages name no company sign-in. Transistor's plans carry larger private lists, up to 3,000, but its pages name no branded app. Podbean puts company features on one plan, yet its private list on that plan is 100 until you buy more. Castos spreads features across plans, so the plan you need may be one step above the one you priced.

Moving later takes work, because each person's feed address comes from the host. Castos lists free migration from other hosts and an enterprise migration service with feed continuity. None of the pages we read says how private listeners move. Ask before you commit.

Which platform fits which team

• A team of up to 250 that wants a free app: Castos Growth. See the Castos review.
• Up to 500 people on a plan you can start online: Castos Pro.
• Single sign-on on a plan you can start online: Podbean Business, set against Castos in Castos vs Podbean.
• A large private list on listed self-serve plans: Transistor, up to 3,000 on Business, with feeds and a web player.
• Many clients across a few shows: Hello Audio, which lists unlimited listeners.
• A member program that needs single sign-on, with no public price and a demo request first: Supporting Cast.
• Just starting: how to create an internal podcast covers a pilot.