# Qué usan empresas como la suya

166 empresas en usedby usan Resend con una prueba pública (mercado general). T4; 10 CONFIRMED, 4 DECLARED, 152 OBSERVED, 0 SIGNAL. https://www.usedby.ai/es/peers?category=email-delivery&limit=8

Los recuentos corresponden a empresas registradas en usedby, no a cuotas de mercado. Cuentan los cuatro niveles de prueba. El tamaño desconocido solo se excluye de vistas por tamaño. Sus requisitos no se han evaluado.

```json
{
  "status": "answered",
  "category": {
    "slug": "email-delivery",
    "name": "Envío y plantillas de correo"
  },
  "industry": null,
  "size": null,
  "country": null,
  "answeringTier": "T4",
  "tiersTried": [
    {
      "tier": "T1",
      "label": "mismo sector y tamaño",
      "companies": 0,
      "tools": 0,
      "smallSample": true,
      "skipped": true,
      "topTools": []
    },
    {
      "tier": "T2",
      "label": "mismo sector",
      "companies": 0,
      "tools": 0,
      "smallSample": true,
      "skipped": true,
      "topTools": []
    },
    {
      "tier": "T3",
      "label": "misma familia de sectores",
      "companies": 0,
      "tools": 0,
      "smallSample": true,
      "skipped": true,
      "topTools": []
    },
    {
      "tier": "T4",
      "label": "mercado general",
      "companies": 166,
      "tools": 1,
      "smallSample": false,
      "skipped": false,
      "topTools": [
        "Resend"
      ]
    }
  ],
  "sample": {
    "companies": 166,
    "strongProofShare": 0.08433734939759036,
    "sizeKnownShare": 0.13855421686746988,
    "excludedVendorCompanies": 0
  },
  "tools": {
    "total": 1,
    "listed": [
      {
        "name": "Resend",
        "slug": "resend",
        "companies": 166,
        "mix": {
          "confirmed": 10,
          "declared": 4,
          "observed": 152,
          "signal": 0
        },
        "countryCount": null,
        "latestCheck": "2026-11-13T18:23:05.077Z",
        "alreadyUses": false,
        "largestPeers": {
          "total": 23,
          "listed": [
            {
              "usageId": "cmwdvdx3a0076wt4e8j6kedpy",
              "company": "Warner Bros",
              "slug": "warner-bros",
              "proof": "OBSERVED",
              "size": "MEGA",
              "lastCheckedAt": "2026-11-13T18:21:10.414Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdvdx3a0076wt4e8j6kedpy",
                "method": "LOGO_WALL",
                "original": "https://resend.com/customers"
              }
            },
            {
              "usageId": "cmwdve7jt007swt4en7xzknmd",
              "company": "Decathlon",
              "slug": "decathlon",
              "proof": "OBSERVED",
              "size": "MEGA",
              "lastCheckedAt": "2026-11-13T18:21:10.414Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdve7jt007swt4en7xzknmd",
                "method": "LOGO_WALL",
                "original": "https://resend.com/customers"
              }
            },
            {
              "usageId": "cmwdvf9mg0093wt4egry8aq4h",
              "company": "eBay",
              "slug": "ebay",
              "proof": "OBSERVED",
              "size": "MEGA",
              "lastCheckedAt": "2026-11-13T18:21:10.414Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdvf9mg0093wt4egry8aq4h",
                "method": "LOGO_WALL",
                "original": "https://resend.com/customers"
              }
            }
          ],
          "overflow": 20
        },
        "strongProofPeers": {
          "total": 14,
          "listed": [
            {
              "usageId": "cmwdvflie009nwt4enw8yw3kx",
              "company": "MrBeast",
              "slug": "mrbeast-mrbeast-com",
              "proof": "CONFIRMED",
              "size": null,
              "lastCheckedAt": "2026-11-13T18:23:05.077Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdvflie009nwt4enw8yw3kx",
                "method": "CASE_STUDY",
                "original": "https://resend.com/customers/mrbeast"
              }
            },
            {
              "usageId": "cmwdve16s007dwt4epgvkamtu",
              "company": "Raycast",
              "slug": "raycast",
              "proof": "CONFIRMED",
              "size": null,
              "lastCheckedAt": "2026-11-13T18:21:10.414Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdve16s007dwt4epgvkamtu",
                "method": "CASE_STUDY",
                "original": "https://resend.com/customers/raycast"
              }
            },
            {
              "usageId": "cmwdve2qs007hwt4ey90l0iax",
              "company": "Replit",
              "slug": "replit",
              "proof": "CONFIRMED",
              "size": "MEDIUM",
              "lastCheckedAt": "2026-11-13T18:21:10.414Z",
              "source": {
                "url": "https://www.usedby.ai/claims/cmwdve2qs007hwt4ey90l0iax",
                "method": "CASE_STUDY",
                "original": "https://resend.com/customers/replit"
              }
            }
          ],
          "overflow": 11
        },
        "why": [
          {
            "text": "It lets our team stay focused on building the larger platform rather than getting pulled into the overhead that typically comes with legacy email infrastructure.",
            "sourceUrl": "https://resend.com/customers/mrbeast",
            "sourceLang": "en",
            "field": "highlightText",
            "usageId": "cmwdvflie009nwt4enw8yw3kx",
            "company": {
              "name": "MrBeast",
              "slug": "mrbeast-mrbeast-com"
            }
          },
          {
            "text": "Switching over to Resend from SendGrid marked a significant improvement in our email management. We started with a small test - waitlist emails for our iOS and Windows apps. Within 30 minutes, we were done.",
            "sourceUrl": "https://resend.com/customers/raycast",
            "sourceLang": "en",
            "field": "highlightText",
            "usageId": "cmwdve16s007dwt4epgvkamtu",
            "company": {
              "name": "Raycast",
              "slug": "raycast"
            }
          }
        ],
        "momentum": {
          "status": "available",
          "windowDays": 90,
          "companies": 4,
          "signalCompanies": 0,
          "basis": "public_proof_arrival"
        },
        "reasonStatus": "published"
      }
    ],
    "overflow": 0
  },
  "alreadyUses": [],
  "alreadyUsesTotal": 0,
  "alreadyUsesOverflow": 0,
  "summary": "166 empresas en usedby usan Resend con una prueba pública (mercado general). T4; 10 CONFIRMED, 4 DECLARED, 152 OBSERVED, 0 SIGNAL. https://www.usedby.ai/es/peers?category=email-delivery&limit=8",
  "compareUrl": null,
  "limitations": [
    "Los usos públicos en usedby no son cuotas de mercado ni recomendaciones. Los requisitos no se evalúan.",
    "Los tamaños desconocidos se excluyen de la vista de empresas más grandes. Ningún uso se oculta por su antigüedad.",
    "Se omite T1 porque se desconoce el tamaño de la empresa.",
    "Se desconoce el sector; se muestran datos del mercado general."
  ],
  "source": {
    "url": "https://www.usedby.ai/es/peers?category=email-delivery&limit=8",
    "terms": "https://www.usedby.ai/terms",
    "citation": "Source: usedby, https://www.usedby.ai/es/peers?category=email-delivery&limit=8"
  }
}
```