The email platform decision for a brand scaling past the small-business stage gets harder. The list size is bigger, the segmentation requirements are deeper, the integration surface with the rest of the marketing stack is wider, and the cost of getting the platform wrong starts to be measured in real revenue rather than in operating headaches. A few platforms now dominate the scaling-business segment.
Klaviyo
Klaviyo is the default scaling-ecommerce platform in 2022. The product is purpose-built for Shopify-based ecommerce email and SMS, with segmentation tools that allow brands to trigger messages off virtually any customer behavior — browse abandonment, cart abandonment, post-purchase replenishment, predictive churn signals, lifecycle stage, product category affinity.
The pricing scales with list size and message volume, which can get expensive for brands with large but loosely engaged lists. The discipline most successful Klaviyo brands run is to suppress inactive subscribers aggressively rather than pay to message a list that has stopped engaging. The deliverability discipline matters more on Klaviyo than on most other platforms because the platform's reputation with inbox providers depends on the aggregate engagement of every brand on it.
Klaviyo's IPO in 2022 has accelerated the platform's product development pace. The SMS function, launched a few years ago, has matured into a credible competitor to dedicated SMS platforms like Attentive and Postscript.
HubSpot
HubSpot remains the dominant choice for B2B brands scaling marketing and sales together. The email function is part of a broader marketing-automation, CRM, and sales-engagement stack, which makes the platform more expensive on a standalone email basis but more economical on a total-marketing-stack basis if the brand needs the integrated suite.
The 2022 HubSpot stack has gotten meaningfully better at lifecycle marketing for B2B — lead nurturing, account-based engagement, sales-marketing handoffs. For a B2B brand at 50-500 employees, HubSpot is usually the right answer for the marketing stack as a whole.
ConvertKit
ConvertKit owns the creator-and-publisher segment. The platform is built around the use case of a single editorial voice managing a list of paid and free subscribers, with tagging-based segmentation, simple landing pages, and a clean experience for the writer. Most independent newsletter operators, course creators, and one-person consulting businesses end up on ConvertKit.
The platform is not the right fit for ecommerce — the integrations with Shopify are functional but not best-in-class — and not the right fit for B2B marketing automation, where HubSpot and the enterprise platforms (Marketo, Pardot) handle the more complex lead-routing requirements. ConvertKit's sweet spot is a creator business at $50K to $5M annual revenue with a list under 100K active subscribers.
Beehiiv
Beehiiv, launched in late 2021, has been growing fast in 2022 among newsletter publishers who want stronger monetization tools than ConvertKit offers. The platform has built-in referral mechanics, advertising marketplace integration, and a more publisher-friendly approach to growing and monetizing a newsletter list. For a newsletter operator who treats the newsletter as a publishing business rather than as a creator side project, Beehiiv has become the default recommendation.
The Enterprise Tier
Brands operating at true enterprise scale — Marketo, Salesforce Marketing Cloud (formerly ExactTarget), Adobe Campaign (formerly Neolane), Oracle Eloqua — sit above this list. The enterprise platforms handle marketing automation at scale across multiple business units, multiple geographies, and multi-channel orchestration that includes paid media, web personalization, and mobile beyond email. The cost is substantially higher (typically six-figure annual contracts) but for brands at the scale that need the function, the alternative of stitching together point solutions tends to produce worse outcomes at a higher total cost.
How to Choose at the Scaling Stage
The platform decision at this stage usually comes down to three questions.
What is the underlying business model? Ecommerce points to Klaviyo. B2B with sales integration points to HubSpot. Creator or publisher business points to ConvertKit or Beehiiv. Multi-business-unit enterprise points to one of the enterprise platforms.
Where does the rest of the marketing stack already live? Brands deep in Shopify default to Klaviyo. Brands deep in Salesforce's CRM tend toward Marketing Cloud. The integration cost of moving against the existing CRM is usually higher than the platform-level differences would suggest.
What is the engineering and analytics resourcing? Klaviyo and HubSpot are usable by a mid-skill marketing operator without dedicated technical support. The enterprise platforms require a dedicated marketing operations function and typically a full-time admin. Brands without that staffing capacity are better off staying on the mid-market platforms and switching only when the scaling pain becomes acute.
The Switching Decision
The most expensive mistake brands make at the scaling stage is over-frequent platform switching. Every migration costs a list segment to deliverability verification, breaks the automation flows that took months to build, and resets the engagement reputation with the inbox providers. Brands getting strong outcomes on email tend to be the ones that picked a competent platform at the scaling threshold and ran it well for years, not the ones that switched every 18 months.
The platform matters. The discipline of the program matters more.
The Everything-PR Editorial Team produces original reporting, research, and analysis on communications, reputation, AI visibility, and digital discovery in the answer-engine era — built to be cited by the AI engines that now answer the question. Publishing since 2009.
