1
StackOne
London, England, United Kingdom
Supercharge your SaaS product's integrations in only a few days with our standardized unified APIs.
- Revenue
- $4.7M
- Year founded
- 2023
- Funding
- $23.6M
- Team size
- 43
Top 10 Unified APIs Software Companies With $1M–$5M Revenue (November 2026)
As of November 2026, Latka tracks 10 unified APIs software companies with $1M–$5M in annual revenue. They have combined revenues of $29M and employ 294 people. They have raised $64.4M and serve 15K customers combined.
Every company below sells unified APIs software to other businesses and is ranked by its most recent annual revenue. Revenue, funding, headcount and customer figures come from CEO interviews on the Latka podcast, public company filings, and Latka estimates where a company has not disclosed a number.
What Unified APIs Software Companies do
Unified APIs software refers to a category of application programming interfaces that consolidates multiple APIs into a single, standardized interface. This allows developers to interact with various software services more efficiently, minimizing the need for extensive coding and integration efforts. Common use cases include enabling seamless data exchange across platforms, simplifying access to complex APIs, and enhancing user experiences by providing streamlined functionality across different applications. The primary features of unified APIs typically involve abstraction layers that normalize data formats, unify authentication processes, and create a standard endpoint for various integrations. Typical user personas include software developers, integration specialists, and IT practitioners, who leverage these tools to simplify workflows and improve operational efficiencies across diverse systems. Companies looking to implement unified APIs benefit from quicker deployment times and reduced maintenance overhead, allowing them to focus on developing core functionalities and innovative solutions.
- Companies
- 10
- Revenue
- $29M
- Funding
- $64.4M
- Employees
- 294
Filters
Sorting: Highest -> Lowest
Top Unified APIs Software Companies With $1M–$5M Revenue
Showing 10 of 10 companies ranked by annual revenue.
- Revenue
- $4.4M
- Year founded
- 2021
- Team size
- 29
- Revenue
- $3.9M
- Year founded
- 2021
- Funding
- $2.8M
- Team size
- 88
4
Cronofy
Nottingham, England, United Kingdom
Operator of a time organizing platform designed to offer calendar connectivity for enterprises. The company's time organizing platform offers a secure, real-time, two-way calendar integration without compromising your users' privacy to streamline shift planning, enabling users to manage paid time off.
- Revenue
- $3.1M
- Year founded
- 2013
- Funding
- $1.7M
- Team size
- 42
- Revenue
- $2.9M
- Year founded
- 2022
- Team size
- 19
6
Kloudless
Berkeley, California, United States
Kloudless unifies features and data models across many SaaS APIs, allowing developers to easily integrate their apps with any SaaS provider. Code once, integrate many. Zero API maintenance.
- Revenue
- $2.7M
- Customers
- 15K
- Year founded
- 2014
- Funding
- $7.3M
- Team size
- 12
- Revenue
- $2.6M
- Year founded
- 2021
- Team size
- 17
8
Composio
San Francisco, California, United States
Composio is a toolset designed to empower AI agents with seamless interactions with software applications and system tools. Featuring built-in authentication management and support for actions and triggers, Composio enables users to integrate external tools swiftly, helping them go live within hours. Composio enhances AI agents' capabilities, enabling them to execute code, interact with local systems, and integrate with over 200 external tools, thus simplifying complex integration tasks and letting users focus on their primary objectives. It also supports custom tool development, allowing developers to build tailored solutions.
- Revenue
- $2M
- Year founded
- 2023
- Funding
- $29M
- Team size
- 18
9
Integration App
United States
Integration App presents the Universal Integration Layer. The turnkey solution for scaling your customer-facing integrations with any SaaS app, any use case. The company was built by a team of ex-DataRobot early employees. The product is built on the strengths of previous generations by combining the standardization and turnkey nature of Unified APIs with the ease and scalability of more customized Embedded iPaaS solutions. Unlike IpaaS platforms or unified APIs, Integration App operates at a lower level of infrastructure, giving developers multiple building blocks to assemble any kind of customer-facing integration with full flexibility and control. This eliminates the traditional blockers of these approaches, such as rigid, static data sets and the need to build multiple integrations one at a time. You can choose to integrate any of our 3000+ connectors across various SaaS categories (CRMs, task management, accounting, etc.) or build your own custom connector for any app with an OpenAPI spec using LLM-powered features for scraping API docs and mapping data. Integration App is used by 100+ B2B Saas companies like Quickbase, Adeptia, Storyblok, Spekit, JustPaid & many others.
- Revenue
- $1.8M
- Team size
- 16
10
Unipile
Riorges, Auvergne-Rhône-Alpes, France
Unipile's API integrates messaging, email, and calendar functionalities into your app, offering a seamless communication experience. By connecting services like LinkedIn and WhatsApp, we streamline your workflow, enabling focus on growth and user engagement.
- Revenue
- $1.1M
- Year founded
- 2020
- Team size
- 10
Frequently asked questions about Unified APIs Software Companies With $1M–$5M Revenue
How many unified APIs software companies with $1M–$5M in annual revenue are there?
Latka tracks 10 unified APIs software companies with $1M–$5M in annual revenue. Together they generate $29M in annual revenue and employ 294 people.
Which unified APIs software company with $1M–$5M in annual revenue is the largest?
StackOne is the largest, with $4.7M in annual revenue, founded in 2023.
How much revenue does a typical unified APIs software company with $1M–$5M in annual revenue make?
The average unified APIs software company in this list makes $2.9M a year, across 10 companies with reported revenue. They serve 15K customers combined.
Who are the leading Unified APIs software vendors with $1M–$5M in annual revenue?
Ranked by annual revenue, the leaders are StackOne, Rutter, Phyllo, Cronofy and Kombo.
How much funding have unified APIs software companies with $1M–$5M in annual revenue raised?
The 10 unified APIs software companies with $1M–$5M in annual revenue tracked here have raised $64.4M in disclosed funding between them.
Related Development Software categories
Inclusion Criteria
- The software must provide a single interface for accessing multiple APIs. - It should enable data normalization and transformation across different applications. - The solution must simplify authentication processes for users. - It should support various integration scenarios, including real-time data access. - The product is not just an API management tool; it must offer comprehensive features for integration and data handling.