Where to Launch a B2B SaaS: Review Sites, Marketplaces and Buyer Channels
A B2B SaaS is bought by people who check evidence, so launch where evidence lives: software review sites like G2 and Capterra, and the marketplaces of tools your buyers already use, such as Zapier, Atlassian and Slack. Add LinkedIn for founder-led outreach and Show HN for technical buyers. Consumer launch sites bring attention, but a buyer wants reviews, a security page and a clear integration story.
What do business buyers check before they try your product?
A business buyer is rarely the person who finds the tool. A user finds it, then someone else asks whether it is safe, who else uses it and how it connects to the systems the team already runs. A launch place is useful for B2B when it helps with those second questions: reviews from named customers, an integration listed in a tool they use, a security page they can forward.
That is why this list leans on review sites and marketplaces more than the launch boards that suit consumer products. It also changes the first task. Before you list anywhere, collect three or four customers who will say something specific and public about what the product did for them, since several of these places turn that into the main trust signal.
Which places do B2B buyers and partners trust?
Facts come from each site’s own pages, read on 13 November 2026. Where a site would not load for our automated check, the entry says so and stays within well-known basics.
01 G2
A software review marketplace where buyers compare products, with seller pages for claiming a profile.
- Seller offer
- Its seller site describes profiles you can claim and reviews it calls verified
- Paid products
- It also promotes buyer-intent and other paid services; we did not read which parts cost money
- Reader
- A buyer building a shortlist
A profile with no reviews gives a shortlist-builder nothing to go on, so plan the ask before you claim the page: email your first customers a direct link and tell them what to mention. Do not offer anything in return that the platform’s rules do not allow, and read those rules first.
Pick the category buyers search, not the one you invented. A new category with one product in it is invisible. Use the existing label even if it fits you loosely, and explain the difference in the description.
02 Capterra
A business software directory where buyers browse by category and read reviews.
- Access
- Its vendor pages did not load for our automated check, so we read no listing rules or costs
- Reader
- A company buyer comparing options in a category
- Check first
- Whether a basic listing is free and what a paid placement changes
Treat it as a sibling to G2: the same reviews can often be requested for both, which saves your customers a second ask. Confirm that on the vendor pages, because review rules differ between sites.
Before you pay for anything here, take the free listing if there is one and look at the traffic it sends in your analytics. Business directories sell leads, and a lead is only worth what your sales cycle converts.
03 Zapier public integration
Listing your product in Zapier’s directory so teams can wire it to the tools they already run.
- Needs
- A publicly launched app that is not invite-only or beta
- Also
- Documented APIs, production endpoints and credentials requested appropriately
- Fit
- A product that has to connect to a CRM, a spreadsheet or a ticketing tool
For business software, the question “does it connect to X?” often decides the trial. An integration is both an answer to that question and a discovery channel, since people look for ways to connect tools they already use.
Public listing has a review and ongoing upkeep, so start with the one or two triggers customers ask for most. If your user base is small, a private integration shared by invitation is a safer first step.
04 Atlassian Marketplace
The directory for apps that extend Jira, Confluence and other Atlassian products.
- Path
- Register as a Marketplace partner, build with Forge, create a listing and submit for review
- Rules
- App approval guidelines and listing principles are published in its docs
- Fit
- A product for teams that already live in Jira or Confluence
Choose this only if your product adds to an Atlassian workflow, such as release notes inside Jira. The buyers there already pay for the platform and search its directory when something is missing, so the intent is high and the audience narrow.
Plan the work as a second product: a Forge app, a listing, a pricing model for the marketplace and a support channel. We did not read its fee structure, so check the docs before you decide.
05 Slack Marketplace
Slack’s directory for apps, with a published review process and a minimum-usage rule.
- Usage rule
- Apps on fewer than 10 active workspaces with fewer than 20 monthly active users are unsuitable and blocked from submitting
- Review
- Preliminary feedback plus a functional review that its docs put at up to 10 weeks for new apps
- Route before it
- Unlisted distribution to pilot teams
It suits a B2B product whose users spend the day in chat, such as an approvals tool or an incident tool. Because of the usage floor, it comes after you have pilot teams and not before.
The Slack apps page covers the two-stage plan in full, including what the review asks for.
06 LinkedIn
A professional network where founder posts and direct messages reach the people who hold budgets.
- Access
- We ran no automated check on its pages and state no platform rules
- Format
- A founder’s own post about a customer problem, not a company ad
- Best for
- Narrow buyer roles you can name, such as finance controllers
Write to one role. A post that begins with a specific headache of month-end close reaches a controller in a way that “we just launched” does not. Show one screenshot of the result, not the whole product.
Follow every reply with a direct message that offers help and not a demo. The LinkedIn launch post templates give structures you can adapt.
07 Hacker News (Show HN)
A place to reach technical buyers and evaluators, if your product can be tried without a sales call.
- Guideline
- Something others can try; sign-up pages and newsletters are off topic
- Cost
- Free to post; account needed
- Fit
- Tools bought by engineering, security or data teams
A gated enterprise product does not suit the format, so offer a free tier, a sandbox or an open-source core. Readers here evaluate products for their companies and will ask about security, pricing and lock-in in the first hour.
Answer in public and in detail. A thread where you handle a sceptical question well is itself a trust signal for the next reader.
What should be ready before you list in any of them?
- A security and data page. Where data is stored, who can access it, how a customer exports or deletes it. Write what is true, even if it is short.
- Named customer quotes. With permission, on the site and ready to repeat on each profile.
- An integration list. The tools you connect to, shown as logos or names, because buyers scan for theirs.
- A pricing page or a clear route to a price. “Contact us” alone loses shortlist-builders who compare in private.
For the order of work, the playbook for launching a B2B SaaS has a dated plan, and the B2B SaaS ideas and the ideas board show what buyers have asked for. When you have a page, launch it here for free as one more public link, and see the SaaS directories list for further review sites.
Frequently asked questions
Is Product Hunt right for a B2B SaaS?
It can be, but it is a general audience, and a B2B buyer wants reviews, integrations and security details that a launch page does not show well. Use it for visibility if you have a clear, easily demonstrated product, and treat G2, Capterra and marketplaces as the places where buying decisions are checked.
Do I need customer reviews before I list on G2 or Capterra?
A profile can exist without them, but a shortlist-builder has little to go on. Ask your first customers for specific reviews and use the same wording of the ask for each site. Confirm each platform’s review rules on its own pages, since what you may offer for a review varies.
When should a B2B SaaS list on a marketplace?
When your product plugs into one and you can support it. Zapier requires a publicly launched app, Atlassian has a partner and review path, and Slack blocks submissions from apps below a usage floor. Build the integration your customers already ask for, not the one with the largest directory.
Post your build ideas publishes this page and runs a free launch board that competes with some of the sites it names. Facts about other sites came from their own pages on the date shown above; terms, queues and prices change, so confirm on their sites before you decide. About the publisher.