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Topics · Transactional Email APIs

Top companies for Transactional Email APIs

Ranked by AI mention frequency in Transactional Email APIs prompts · 1124 observations · last seen Oct 6, 2026

Share of voice · top 10

Mention share across all brand mentions in this topic · remaining brands hold 38.8%

Leader

Postmark

11.8%

  1. 1Postmark11.8% · 844
  2. 2Twilio10.8% · 771
  3. 3Mailgun10.0% · 718
  4. 4Amazon Ses9.1% · 653
  5. 5Resend9.0% · 646
  6. 6Notify2.9% · 210
  7. 7Brevo2.4% · 174
  8. 8Sparkpost1.9% · 136
  9. 9Mailtrap1.8% · 129
  10. 10Next Js1.4% · 97

Full ranking

  1. 1.Postmark11.8% SoV · 844 mentions · 488 prompts · Oct 6, 2026
  2. 2.Twilio10.8% SoV · 771 mentions · 497 prompts · Oct 6, 2026
  3. 3.Mailgun10.0% SoV · 718 mentions · 471 prompts · Oct 6, 2026
  4. 4.Amazon Ses9.1% SoV · 653 mentions · 401 prompts · Oct 6, 2026
  5. 5.Resend9.0% SoV · 646 mentions · 318 prompts · Oct 6, 2026
  6. 6.Notify2.9% SoV · 210 mentions · 72 prompts · Oct 5, 2026
  7. 7.Brevo2.4% SoV · 174 mentions · 114 prompts · Oct 5, 2026
  8. 8.Sparkpost1.9% SoV · 136 mentions · 128 prompts · Oct 6, 2026
  9. 9.Mailtrap1.8% SoV · 129 mentions · 67 prompts · Oct 5, 2026
  10. 10.Next Js1.4% SoV · 97 mentions · 65 prompts · Oct 5, 2026
  11. 11.React Email1.1% SoV · 82 mentions · 48 prompts · Oct 5, 2026
  12. 12.Gmail0.99% SoV · 71 mentions · 58 prompts · Oct 5, 2026
  13. 13.Aws Ses0.94% SoV · 67 mentions · 62 prompts · Oct 6, 2026
  14. 14.SES0.82% SoV · 59 mentions · 55 prompts · Oct 6, 2026
  15. 15.Mailchimp0.68% SoV · 49 mentions · 36 prompts · Oct 6, 2026
  16. 16.AWS0.67% SoV · 48 mentions · 39 prompts · Oct 6, 2026
  17. 17.Smtp2go0.66% SoV · 47 mentions · 37 prompts · Oct 6, 2026
  18. 18.Nodemailer0.64% SoV · 46 mentions · 30 prompts · Oct 5, 2026
  19. 19.Customer0.61% SoV · 44 mentions · 28 prompts · Oct 5, 2026
  20. 20.Google Workspace0.61% SoV · 44 mentions · 36 prompts · Oct 5, 2026
  21. 21.Mailersend0.61% SoV · 44 mentions · 35 prompts · Oct 5, 2026
  22. 22.Outlook0.57% SoV · 41 mentions · 35 prompts · Oct 5, 2026
  23. 23.Sendinblue0.56% SoV · 40 mentions · 35 prompts · Oct 5, 2026
  24. 24.Microsoft 3650.53% SoV · 38 mentions · 32 prompts · Oct 5, 2026
  25. 25.Courier0.52% SoV · 37 mentions · 12 prompts · Oct 5, 2026
  26. 26.Sns0.48% SoV · 34 mentions · 28 prompts · Oct 5, 2026
  27. 27.Knock0.46% SoV · 33 mentions · 10 prompts · Oct 5, 2026
  28. 28.Cloudwatch0.45% SoV · 32 mentions · 20 prompts · Oct 5, 2026
  29. 29.Loops0.45% SoV · 32 mentions · 23 prompts · Oct 5, 2026
  30. 30.Brevo Sendinblue0.43% SoV · 31 mentions · 31 prompts · Oct 6, 2026
  31. 31.Cloudflare0.39% SoV · 28 mentions · 15 prompts · Oct 4, 2026
  32. 32.Novu0.39% SoV · 28 mentions · 7 prompts · Oct 5, 2026
  33. 33.Mailjet0.38% SoV · 27 mentions · 25 prompts · Oct 5, 2026
  34. 34.Node Js0.35% SoV · 25 mentions · 15 prompts · Oct 5, 2026
  35. 35.Onesignal0.35% SoV · 25 mentions · 12 prompts · Oct 5, 2026
  36. 36.Vercel0.35% SoV · 25 mentions · 22 prompts · Oct 2, 2026
  37. 37.Django0.34% SoV · 24 mentions · 21 prompts · Oct 5, 2026
  38. 38.Klaviyo0.32% SoV · 23 mentions · 14 prompts · Oct 5, 2026
  39. 39.Clerk0.29% SoV · 21 mentions · 14 prompts · Oct 4, 2026
  40. 40.Supabase0.28% SoV · 20 mentions · 15 prompts · Oct 4, 2026
  41. 41.Auth00.27% SoV · 19 mentions · 13 prompts · Oct 4, 2026
  42. 42.Express0.27% SoV · 19 mentions · 11 prompts · Oct 5, 2026
  43. 43.Python0.27% SoV · 19 mentions · 17 prompts · Oct 5, 2026
  44. 44.Stripe0.27% SoV · 19 mentions · 12 prompts · Oct 4, 2026
  45. 45.Braze0.25% SoV · 18 mentions · 10 prompts · Oct 5, 2026
  46. 46.Laravel0.25% SoV · 18 mentions · 16 prompts · Oct 5, 2026
  47. 47.Rails0.25% SoV · 18 mentions · 18 prompts · Oct 5, 2026
  48. 48.Sqs0.25% SoV · 18 mentions · 17 prompts · Oct 5, 2026
  49. 49.Supabase Auth0.25% SoV · 18 mentions · 12 prompts · Oct 4, 2026
  50. 50.Eventbridge0.24% SoV · 17 mentions · 15 prompts · Oct 5, 2026

How did Obsurfable measure this?

Obsurfable records AI answers to buyer-style prompts in its research corpus (1124 observations for this page). Metrics are distributions over observations, not a single static ranking.

Which AI systems does Obsurfable collect answers from?

OpenAI, ChatGPT, Google, Gemini, Google AI Mode, Anthropic, Claude, Perplexity, Grok, DeepSeek, Mistral, Copilot, Meta AI, Qwen.

How can brands improve their AEO?

Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as Circuit. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.

Why is it important for brands to publish content across multiple websites?

Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.

Want this interpreted for your brand?

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