# Email marketing platforms for enterprise buyers: what AI models recommend, September 2026 Gane, the publisher, sells software in this category. Every product here is measured by the same method as in every other category. Gane Index, September 2026 Edition. Asked as "email marketing platform" and as "email marketing tool", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/gtm/marketing/email-marketing/2026-09/enterprise This is the permanent record of the September 2026 Edition, published September 15, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/marketing/email-marketing/enterprise/index.md **Standing:** Adobe Marketo Engage leads with 23% of first choices; verdict contested. 48 first choices across the direct, paraphrase, budget and scale prompts. ## First-choice share | Rank | Product | Share | Negative rate | Labels | |---|---|---|---|---| | 1 | [Adobe Marketo Engage](https://www.gane.ai/index/gtm/vendors/adobe-marketo-engage/index.md) | 23% | 9% | 34 | | 2 | [HubSpot Marketing Hub](https://www.gane.ai/index/gtm/vendors/hubspot-marketing-hub/index.md) | 21% | 19% | 59 | | 3 | [Salesforce Marketing Cloud](https://www.gane.ai/index/gtm/vendors/salesforce-marketing-cloud/index.md) | 19% | 15% | 48 | | 4 | [Brevo](https://www.gane.ai/index/gtm/vendors/brevo/index.md) | 12% | 29% | 24 | | 5 | [ActiveCampaign](https://www.gane.ai/index/gtm/vendors/activecampaign/index.md) | 4% | 11% | 37 | | 7 | [Adobe Campaign](https://www.gane.ai/index/gtm/vendors/adobe-campaign/index.md) | 2% | 11% | 27 | | 8 | [Braze](https://www.gane.ai/index/gtm/vendors/braze/index.md) | 2% | 8% | 24 | | 9 | [Oracle Eloqua](https://www.gane.ai/index/gtm/vendors/oracle-eloqua/index.md) | 2% | 24% | 17 | | 15 | [Salesforce Marketing Cloud Account Engagement](https://www.gane.ai/index/gtm/vendors/salesforce-marketing-cloud-account-engagement/index.md) | 0% | 0% | 12 | | 16 | [Iterable](https://www.gane.ai/index/gtm/vendors/iterable/index.md) | 0% | 10% | 20 | | 52 | [Klaviyo](https://www.gane.ai/index/gtm/vendors/klaviyo/index.md) | 0% | 40% | 25 | | 67 | [Constant Contact](https://www.gane.ai/index/gtm/vendors/constant-contact/index.md) | 0% | 83% | 12 | Rank is by share of first choices among all 68 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels. ## Each model's first choice on the direct prompt - Claude Haiku 4.5: Adobe Marketo Engage; alternatives ActiveCampaign, HubSpot Marketing Hub, ZoomInfo Marketing - GPT-5.4 mini: Adobe Marketo Engage; alternatives HubSpot Marketing Hub, Oracle Eloqua, Salesforce Marketing Cloud, Salesforce Marketing Cloud Account Engagement - Gemini 3.5 Flash: Adobe Marketo Engage; alternatives ActiveCampaign, HubSpot Marketing Hub, Oracle Eloqua, Salesforce Marketing Cloud Account Engagement - Perplexity Sonar: HubSpot Marketing Hub; alternatives Adobe Marketo Engage, Salesforce Marketing Cloud - Grok 4.20: HubSpot Marketing Hub; alternatives Adobe Marketo Engage, Salesforce Marketing Cloud Account Engagement - Mistral Small: HubSpot Marketing Hub; alternatives ActiveCampaign, Adobe Campaign, Oracle Eloqua, Salesforce Marketing Cloud - DeepSeek V4 Flash: Adobe Marketo Engage; alternatives HubSpot Marketing Hub, Salesforce Marketing Cloud Account Engagement - Llama 4 Maverick: no first choice - Qwen 3.7 Flash: Adobe Marketo Engage, Salesforce Marketing Cloud; alternatives ActiveCampaign, HubSpot Marketing Hub, Oracle Eloqua - Kimi K2: Adobe Marketo Engage; alternatives HubSpot Marketing Hub, Salesforce Marketing Cloud Account Engagement - GLM 4.7 FlashX: no first choice; alternatives Adobe Marketo Engage, Braze, HubSpot Marketing Hub, Microsoft Dynamics 365 Marketing - MiniMax M2.5: HubSpot Email Marketing, Salesforce Marketing Cloud; alternatives SAP Emarsys, Salesforce Marketing Cloud Account Engagement ## Sources the answers cite 22 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers: - ventureharbour.com: 12 answers, 16 citations - mailtrap.io: 9 answers, 12 citations - insiderone.com: 9 answers, 11 citations - brevo.com: 7 answers, 7 citations - sequenzy.com: 6 answers, 9 citations - constantcontact.com: 6 answers, 7 citations - klaviyo.com: 6 answers, 6 citations - campaignmonitor.com: 5 answers, 6 citations Pages named in the most answers: - https://ventureharbour.com/top-enterprise-email-marketing-automation-crm (9 answers) - https://insiderone.com/enterprise-email-marketing (7 answers) - https://ventureharbour.com/email-marketing-software-tools-one-best (7 answers) - https://brevo.com/blog/best-email-marketing-services (6 answers) - https://klaviyo.com/blog/best-email-marketing-platforms (6 answers) - https://constantcontact.com/blog/email-marketing-tools (5 answers) - https://pipeline.zoominfo.com/marketing/email-marketing-platforms (5 answers) - https://attentive.com/blog/best-email-marketing-platforms (4 answers) - https://campaignmonitor.com/blog/email-marketing/email-marketing-platforms-for-agencies (4 answers) - https://emailtooltester.com/en/blog/best-b2b-email-marketing-software (4 answers) ## Warned against - Mailchimp: 14 of 16 labels negative. "Mid-Market Platforms (Avoid for True Enterprise Scale)... Mailchimp, ActiveCampaign, and Omnisend are excellent for startups ... frequently fail enterprise requirements" (Qwen 3.7 Flash, negative prompt) - Constant Contact: 10 of 12 labels negative. "Constant Contact: Small-business oriented... Best for infrequent low-volume sends, not enterprise." (Grok 4.20, negative prompt) - Klaviyo: 10 of 25 labels negative. "Best for: D2C e-commerce brands on Shopify/WooCommerce; avoid for B2B enterprises" (Kimi K2, negative prompt) - HubSpot Marketing Hub: 11 of 59 labels negative. "HubSpot Marketing Hub Professional/Enterprise (not recommended for pure email focus; expensive, feature-gated, and contact-based billing)" (GLM 4.7 FlashX, negative prompt) ## Record - Method: https://www.gane.ai/index/gtm/methodology - License: CC BY 4.0. Cite as Gane Index, September 2026 Edition, www.gane.ai/index/gtm.