Transactional Email & Email API
SaaS Browser tracks 383 Transactional Email & Email API software companies, with 16 added in the past 30 days. The top countries for Transactional Email & Email API SaaS include United States (47), Canada (7), United Kingdom (7).
Key Data Points for Transactional Email & Email API
Company Size Distribution9
Most Established Transactional Email & Email API Companies
| Company | Employees | Domain Rating | Founded | Added |
|---|---|---|---|---|
| Mailgun | 500 | — | — | 2025-02-10 |
| Nylas | 500 | — | 2014 | 2025-02-05 |
| Resend | 50 | — | 2023 | 2026-02-21 |
| SMTP2GO | 50 | — | 2006 | 2025-02-10 |
| Mailinator | — | — | — | 2025-02-04 |
| Emailable | 50 | — | 2017 | 2025-02-05 |
| SMTP | — | — | — | 2025-02-28 |
| Mailboxlayer API | 50 | — | 2015 | 2025-02-11 |
| DummyJSON | — | — | 2021 | 2026-01-24 |
| Maileroo | 10 | — | 2023 | 2025-02-07 |
Top 10 Countries for Transactional Email & Email API SaaS
The following countries represent where most Transactional Email & Email API SaaS companies are headquartered, based on our data for 383 software products.
| Country | Count | % of Total |
|---|---|---|
| United States | 47 | 12.3% |
| Canada | 7 | 1.8% |
| United Kingdom | 7 | 1.8% |
| India | 6 | 1.6% |
| Australia | 5 | 1.3% |
| Netherlands | 3 | 0.8% |
| Cyprus | 3 | 0.8% |
| United Arab Emirates | 3 | 0.8% |
| Germany | 3 | 0.8% |
| Bangladesh | 2 | 0.5% |
SEO & Domain Authority for Transactional Email & Email API
Pricing Data for Transactional Email & Email API
Market Saturation for Transactional Email & Email API
This score is computed from a combination of total products, domain authority, referring domains, company age, traffic growth, pricing, and enterprise presence.
Affiliate Programs in Transactional Email & Email API
25 Transactional Email & Email API SaaS companies offer affiliate programs (6.5% of total).
Most Recently Added Transactional Email & Email API SaaS
Median Age of Transactional Email & Email API SaaS Companies
The median Transactional Email & Email API SaaS company was founded 4.0 years ago (median founding year: 2022).
B2B / B2C Breakdown for Transactional Email & Email API16
Based on 382 companies with consumer type data (99.7% of total).
SaaS Discovery Trend for Transactional Email & Email API
Monthly SaaS discovery count for Transactional Email & Email API compared to its share of all SaaS discovered. A rising percentage indicates this segment is growing faster than the overall market.
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This SaaS is trending! We've detected monthly traffic growth.Frequently Asked Questions
How many Transactional Email & Email API SaaS companies are there?
SaaS Browser tracks 383 Transactional Email & Email API software products as of September 2026. 16 new Transactional Email & Email API SaaS companies have been added in the past 30 days.
How many new Transactional Email & Email API SaaS companies are added each month?
16 new Transactional Email & Email API SaaS companies have been added to SaaS Browser in the past 30 days. Our proprietary crawling infrastructure continuously discovers new software products.
What are the most established Transactional Email & Email API SaaS companies?
The most established Transactional Email & Email API SaaS companies by domain authority include Mailgun, Nylas, Resend, SMTP2GO, Mailinator. These companies represent the highest domain rank scores in the Transactional Email & Email API category.
What is the typical company size for Transactional Email & Email API SaaS?
Among Transactional Email & Email API SaaS companies with employee data, the size distribution is: - 2 (3.8%), - 50 (96.2%).
What is the median domain authority for Transactional Email & Email API SaaS companies?
The median domain rating for Transactional Email & Email API SaaS companies is 13, compared to an overall SaaS median of 13.
Which countries have the most Transactional Email & Email API SaaS companies?
The top countries for Transactional Email & Email API SaaS are: United States (47), Canada (7), United Kingdom (7), India (6), Australia (5). These represent the largest concentrations of Transactional Email & Email API software companies globally.
What percentage of Transactional Email & Email API SaaS companies offer affiliate programs?
25 Transactional Email & Email API SaaS companies offer affiliate programs, representing 6.5% of all Transactional Email & Email API software tracked by SaaS Browser. The median commission rate is 25%.
What is the median age of Transactional Email & Email API SaaS companies?
The median Transactional Email & Email API SaaS company was founded 4.0 years ago, with a median founding year of 2022.
Are Transactional Email & Email API SaaS companies mostly B2B or B2C?
Based on available data, Transactional Email & Email API SaaS companies break down as follows: Both B2B & B2C (23.6%), Business (B2B) (75.4%), Consumer (B2C) (1.0%).
What are the newest Transactional Email & Email API SaaS companies?
The most recently discovered Transactional Email & Email API SaaS companies include MailPulse, TempMail, Super Mail Hub, TempGreen, MyTempBox. SaaS Browser continuously discovers and indexes new software products using proprietary crawling infrastructure.
About SaaS Browser
SaaS Browser is the largest, most up-to-date SaaS database on the internet, the ultimate prospecting and research tool for SaaS companies.
We discover emerging tools weeks after launch, before they appear in Apollo, ZoomInfo, or other databases. Our purpose-built platform exclusively tracks real software products with verified data, unlike generic prospecting tools polluted with agencies, consultancies, and outdated listings.
From Fortune 500 enterprises to bootstrapped startups launching this week, if it's SaaS, we track it.
How these numbers are calculated
- Total Software. The number of published SaaS companies currently listed for this selection. Only companies that pass our automated quality checks are counted.
- New (Past 30 Days). The net number of SaaS companies newly published for this selection in the last 30 days.
- Affiliate Programs. The number of listed SaaS companies that operate a verified affiliate or referral program.
- Median Age (Years). The median age, in years, of companies in this selection, based on founding year. The median is the middle value, so half are older and half younger.
- New (Past 365 Days). The number of SaaS companies published for this selection over the last 365 days.
- Churned (Past Year). Companies published within the last year that are no longer listed - they went offline, were removed, or stopped passing our quality checks.
- Annual Churn Rate. The annual churn rate - churned companies as a percentage of all companies published in the last year (still-listed plus churned).
- Free Trial. The percentage of listed companies in this selection that offer a free trial.
- Company Size Distribution. Distribution of companies by employee count: solo (1), small (2–50), mid (51–200), large (201–1,000), enterprise (1,000+). Percentages are of companies with employee data.
- Median Domain Rating. The median domain rating (0–100) across listed companies, our measure of link authority. Higher is stronger. Shown against the overall median across all SaaS for comparison.
- Median Starting Price (USD). The median entry-level monthly price (USD) across companies in this selection with pricing data.
- Median High Price (USD). The median premium monthly price (USD) across companies in this selection with pricing data.
- Saturation Score. A 0–100 market saturation score combining total products, domain authority, referring domains, company age, traffic growth, pricing, and enterprise presence. Higher means more competitive.
- Median Commission. The median affiliate commission rate offered by companies in this selection that run an affiliate program.
- B2B / B2C Breakdown. Breakdown of companies by target market - business (B2B), consumer (B2C), or both - among those with consumer-type data.
