# What Claude (Anthropic) with web search answered for email marketing software (agencies) on 2026-09-24

## In short

On 2026-09-24, Claude (Anthropic) with web search was asked "best email marketing software for agencies". It named 9 brands; the first six, in order, were Klaviyo, Shopify, ActiveCampaign, GoHighLevel, Brevo and Campaign Monitor.

| Fact | Value |
| --- | --- |
| Question | best email marketing software for agencies |
| Asked on | 2026-09-24 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 9 |
| Sources cited | 8 |
| Audience | agencies |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-24 |

Page: https://bikoosh.com/answers/s/email-marketing-software-agencies-2026-09-24
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-24 through Claude (Anthropic) with web search (model claude-opus-5).

> The honest answer is that "best for agencies" splits by what your clients sell. Here's what I'd actually recommend, in order:
> 
> **1. Klaviyo - if your clients are ecommerce.** It's the default for DTC/Shopify work and it isn't close. Deep product/catalog data drives segmentation, revenue attribution per flow is built in (which is what you put in client reports), and email + SMS live in one place. Its agency partner program gets you a directory listing, client referrals, and tiering as you add accounts. Downside: it's not an agency operating system - each client is a separate account you get invited to, and it's expensive at high list sizes. [klaviyo.com/partners](https://www.klaviyo.com/partners)
> 
> **2. ActiveCampaign - if your clients are B2B, SaaS, or services.** Best-in-class automation logic for the price, a real CRM attached, and per-account white labeling so you can rebrand a single client's instance without touching your global settings. It has multi-account management with a master dashboard. Caveat worth knowing: it does *not* give you true white-label sub-accounts in the GoHighLevel sense, so if reselling under your own brand is the business model, look at #3. [help.activec

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Klaviyo | recommended |
| 2 | Shopify | recommended |
| 3 | ActiveCampaign | recommended |
| 4 | GoHighLevel | recommended |
| 5 | Brevo | recommended |
| 6 | Campaign Monitor | recommended |
| 7 | Monitor | recommended |
| 8 | Constant Contact | recommended |
| 9 | BigMailer | mentioned |

## Sources the engine cited

- https://www.klaviyo.com/partners (vendor)
- https://help.activecampaign.com/hc/en-us/sections/201358430-Partner-Programs (vendor)
- https://consultevo.com/gohighlevel-vs-klaviyo-2026-comparison/ (other)
- https://help.brevo.com/hc/en-us/sections/360005627460-Agency-Partner-Program (vendor)
- https://www.campaignmonitor.com/blog/email-marketing/email-marketing-platforms-for-agencies/ (vendor)
- https://www.leadsie.com/blog/best-email-marketing-software (other)
- https://www.emailtooltester.com/en/blog/email-marketing-software-for-agencies/ (other)
- https://www.bigmailer.io/white-label-email-marketing-platforms/ (vendor)

The question page: https://bikoosh.com/answers/q/email-marketing-software/agencies

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.