One brand publishes a weekly newsletter about sustainable packaging and gains 2,000 subscribers in a year. Another brand posts the same promotional updates they use on social media and stalls at forty subscribers after six months. Same platform. Different fit.
Substack is not a universal channel. It works when you have expertise worth sharing in writing and the discipline to show up on schedule. It fails when you treat it like a broadcast tool for announcements nobody asked to receive.
Who should be on Substack? Here is an honest framework to decide whether your brand belongs there.
Brands that fit Substack well
Consultants, coaches, and advisors often thrive because their product is knowledge. A newsletter demonstrates expertise before a prospect ever books a call. Each issue builds credibility that a sales page alone cannot replicate.
Brands with a defined niche audience fit well too. If you serve a specific industry, hobby, or professional community, a focused newsletter attracts exactly the readers you want. Narrow beats broad on Substack.
Founders and subject matter experts who enjoy writing also fit. Personal voice drives newsletter growth. A generic corporate tone rarely builds a loyal readership. If someone on your team can write with personality and authority, Substack becomes a natural extension of your brand.
Brands that should think twice
Visual-first brands that rely on product photography or video may struggle. Substack is text-first. You can embed images, but the core experience is reading. If your value lives in visuals, other channels likely produce better returns.
Brands expecting fast viral growth will be disappointed. Substack compounds slowly. If you need immediate reach for a product launch, paid advertising or active social channels deliver faster results.
Businesses without a clear topic also struggle. A newsletter about everything your company does rarely attracts subscribers. You need one angle sharp enough that someone would say yes when asked if they want weekly emails about it.
How to make the decision
Ask three questions. Can you write something useful on your topic every week or two for six months? Do your ideal customers read email content in your category? Do you have a website or landing page to send interested readers toward?
If you answered yes to all three, Substack is worth testing. Start free, publish ten issues, and measure open rates and replies before investing in growth tactics or paid tiers.
If you answered no to writing consistency, fix that first or assign the work to someone who can maintain it. A dormant newsletter hurts your brand more than no newsletter at all.
For audience expectations, read Substack audience and newsletter culture. For setup steps once you decide, see Substack newsletter setup and optimization. For the platform overview, start with introduction to Substack marketing.
Frequently asked questions
Can a local business succeed on Substack?
Local businesses with genuine expertise can build a regional audience through newsletters about their category. A bakery might write about bread techniques. A landscaper might share seasonal garden tips. The newsletter attracts people who care about the topic, not just the location. Local customers find you through relevance, then discover you are nearby. WEMASY's website builder lets you connect your local business site to your newsletter signup page.
Is Substack a good fit for B2B companies?
B2B brands with technical or strategic insight often build strong newsletters. Industry analysis, practical guides, and case-based lessons attract professional readers who become leads over time. B2B brands that only publish product announcements rarely gain traction. Lead with education, not promotion.
Should you start on Substack if you already have a large social following?
A large social following gives you a head start for promoting your first issues. Convert interested followers to email subscribers because email gives you direct access without algorithm changes. Your social audience becomes the seed, but the newsletter must deliver value beyond what you already post on social channels.
What if nobody on your team likes writing?
You can hire a writer who learns your voice, or you can record conversations and transcribe them into newsletter format. Some brands succeed with interview-style issues or curated link roundups. Pure promotion without original content rarely works, so find a format that produces value without forcing uncomfortable writing.
How long should you test Substack before deciding it is not working?
Give it at least ten consistent issues over two to three months before judging results. Fewer than that does not give you enough data on open rates, replies, or subscriber growth. If engagement stays flat after ten solid issues, the topic or format may need adjustment rather than abandoning the channel entirely. See Substack growth strategy for tactics to try first.
Can you use Substack alongside other social channels?
Most successful brands treat Substack as one channel in a broader plan, not a replacement for everything else. Share excerpts on social media. Link your newsletter from your website. Use each channel for what it does best. Read building your social media strategy for how to connect the pieces.