Who should be on Substack

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