# What Claude (Anthropic) with web search answered for email marketing software (agencies) on 2026-09-15

## In short

On 2026-09-15, Claude (Anthropic) with web search was asked "best email marketing software for agencies". It named 11 brands, in this order: Klaviyo, Shopify, BigCommerce, ActiveCampaign, Campaign Monitor, HubSpot.

| Fact | Value |
| --- | --- |
| Question | best email marketing software for agencies |
| Asked on | 2026-09-15 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 11 |
| Sources cited | 7 |
| Audience | agencies |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-15 |

Page: https://bikoosh.com/answers/s/email-marketing-software-agencies-2026-09-15
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-15 through Claude (Anthropic) with web search (model claude-opus-5).

> ## The short answer
> 
> There's no single "best" - the right pick depends almost entirely on what your clients sell. But here's the order I'd actually recommend:
> 
> **1. Klaviyo - if any meaningful share of your clients are e-commerce.** It's the default for Shopify/BigCommerce brands, and it's not close. Deep product-level data, revenue attribution per flow, and SMS in the same platform. The agency partner program has tiers with revenue share and a partner directory that actually sends leads. Downside: expensive as lists grow, and overkill for a B2B services client.
> 
> **2. ActiveCampaign - the best all-rounder for a mixed client roster.** Strongest automation builder at a mid-market price, plus a real CRM so you can handle clients who don't have one. Their agency program gives you a partner dashboard to manage client accounts, margin on resold plans, and free accounts for your own use. This is the one I'd standardize on if I had to pick one platform for ten different clients.
> 
> **3. Campaign Monitor - if white-labeling is the actual requirement.** It's the long-standing answer for agencies that want to deliver email under their own brand: branded client logins, multi-account management f

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Klaviyo | recommended |
| 2 | Shopify | recommended |
| 3 | BigCommerce | recommended |
| 4 | ActiveCampaign | recommended |
| 5 | Campaign Monitor | recommended |
| 6 | HubSpot | recommended |
| 7 | Brevo | recommended |
| 8 | MailerLite | recommended |
| 9 | BigMailer | recommended |
| 10 | Moosend | recommended |
| 11 | Check | mentioned |

## Sources the engine cited

- https://www.emailtooltester.com/en/blog/email-marketing-software-for-agencies/ (other)
- https://www.leadsie.com/blog/best-email-marketing-software (other)
- https://www.campaignmonitor.com/blog/email-marketing/white-label-email-marketing-platforms/ (vendor)
- https://www.campaignmonitor.com/resources/guides/email-marketing-and-automation-for-agencies/ (vendor)
- https://www.bigmailer.io/white-label-email-marketing-platforms/ (vendor)
- https://optinmonster.com/white-label-email-marketing-tools/ (other)
- https://www.emailvendorselection.com/best-email-marketing-platforms/ (other)

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.