Company lists · Data refreshed September 2026
Top 25 Api-first agencies based in the United States
RevenueBase identified 206 company matches for api-first agencies associated with the United States as of September 2026 and tracks 5,737 professional contacts across them, including 982 with verified work emails. New York is the largest hub.
This list covers company matches for api-first agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest api-first agencies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 688 contacts → | ||||
Exact match “MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 214 contacts → | ||||
Exact match “Zemoga is now Monks Technology Services, part of Monks.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 205 contacts → | ||||
Exact match “Blue Altair is a niche, industry-recognized business and technology consulting firm that assists our clients with digital transformations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 194 contacts → | ||||
Exact match “In a complex, unpredictable world, adaptability is essential.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 174 contacts → | ||||
Exact match “Organizations today are under pressure to innovate faster, adopt Artificial Intelligence, and build scalable digital platforms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 135 contacts → | ||||
Exact match “White Rabbit Group is a software development agency with a highly diverse and creative team that takes an idea through development and into scale.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 103 contacts → | ||||
Exact match “70-90% of projects fail.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 95 contacts → | ||||
Exact match “Empowering Your Business for the Future Acklen Avenue is your strategic partner in digital transformation, delivering agile, custom software solutions that revolutionize how you…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 82 contacts → | ||||
Exact match “Mobomo builds elegant solutions to solve complex problems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 69 contacts → | ||||
Exact match “We deliver software solutions that create lasting impact for our clients, our people, and our community.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 62 contacts → | ||||
Exact match “Our expertise covers various aspects of information system development, starting from understanding the business to operating systems in production-Definition of software…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 53 contacts → | ||||
Exact match “Inceptive is a software consulting agency that helps clients globally in their digital transformation journey.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 50 contacts → | ||||
Exact match “DyCoders is a US-based software and product development company delivering scalable, high-impact digital solutions for businesses worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 39 contacts → | ||||
Exact match “Welcome to Band of Coders - Where Technology Fuels Innovation!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 38 contacts → | ||||
Exact match “RESKOM is your trusted business partner in the areas of API-led integration, Enterprise Application Integration, Data Integration, and API Management, delivering seamless digital…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 33 contacts → | ||||
Exact match “Custom Software Solutions Our mission and focus is completely tied to our understanding of what customers truly desire when working with a software development firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 31 contacts → | ||||
Exact match “ShakaCode is a global, remote-first software consultancy helping engineering organizations ship production software and adopt AI coding agents safely and effectively.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 29 contacts → | ||||
Exact match “At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 29 contacts → | ||||
Exact match “Stop waiting for things to happen and make them happen!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 24 contacts → | ||||
Exact match “Foster Made is a Richmond-based digital agency specializing in modern, composable technology for forward-thinking organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 22 contacts → | ||||
Exact match “Zuplon builds software businesses can rely on and the SaaS products to prove it.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 21 contacts → | ||||
Exact match “Mapleton Hill helps complex organizations modernize digital platforms and ship products faster with AI native workflows.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 20 contacts → | ||||
Exact match “At FDG Web, we approach digital transformation as a strategic business initiative.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 19 contacts → | ||||
Exact match “Fractional CTO services, MVP development, data migration, legacy code modernization and more, built by a US-based senior team that works directly with B2B companies between 15 and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 18 contacts → | ||||
Exact match “Enqbator helps our partners transform complex challenges into simple, human-centered digital experiences.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “api-first agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 206 api-first agencies based in the United States
See the full list, filter by size, metro and specialty, and access 982 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Api-first agencies based in the United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 206 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “api-first agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 982 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “api-first agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many api-first agencies are there based in the United States?
RevenueBase identified 206 company matches for api-first agencies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Msys Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most api-first agencies?
New York leads with 14 company records, followed by Atlanta (8) and Miami (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 982 professional contacts with verified work emails tracked across these 206 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 206 api-first agencies based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 api-first agencies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 206 matching company records for api-first agencies based in the United States, with 5,737 tracked contacts and 982 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 api-first agencies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Msys Technologiesmsystechnologies.comHQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 688 contacts → |
“MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Zemogazemoga.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 214 contacts → |
“Zemoga is now Monks Technology Services, part of Monks.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Blue Altairbluealtair.comHQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 205 contacts → |
“Blue Altair is a niche, industry-recognized business and technology consulting firm that assists our clients with digital transformations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Flexion INCflexion.usHQ: Madison, WI, United StatesReported employees: 201-500 | Madison, WI, United States | 201-500 | Exact match | 194 contacts → |
“In a complex, unpredictable world, adaptability is essential.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Radiansys INCradiansys.comHQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 174 contacts → |
“Organizations today are under pressure to innovate faster, adopt Artificial Intelligence, and build scalable digital platforms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  White Rabbit Groupwhiterabbit.groupHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 135 contacts → |
“White Rabbit Group is a software development agency with a highly diverse and creative team that takes an idea through development and into scale.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Tonic3tonic3.com HQ: Dallas, United StatesReported employees: 51-200 | Dallas, United States | 51-200 | Exact match | 103 contacts → |
“70-90% of projects fail.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Acklen Avenueacklenavenue.comHQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 95 contacts → |
“Empowering Your Business for the Future Acklen Avenue is your strategic partner in digital transformation, delivering agile, custom software solutions that revolutionize how you…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Mobomomobomo.com HQ: Damascus, MD, United StatesReported employees: 51-200 | Damascus, MD, United States | 51-200 | Exact match | 82 contacts → |
“Mobomo builds elegant solutions to solve complex problems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ingage Partnersingagepartners.comHQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 69 contacts → |
“We deliver software solutions that create lasting impact for our clients, our people, and our community.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Dreamcode Softwaredreamcodesoft.comHQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 62 contacts → |
“Our expertise covers various aspects of information system development, starting from understanding the business to operating systems in production-Definition of software…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Inceptive Technologiesinceptivetechnologies.comHQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 53 contacts → |
“Inceptive is a software consulting agency that helps clients globally in their digital transformation journey.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Dycodersdycoders.comHQ: Boston, CA, United StatesReported employees: 51-200 | Boston, CA, United States | 51-200 | Exact match | 50 contacts → |
“DyCoders is a US-based software and product development company delivering scalable, high-impact digital solutions for businesses worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Band Of Codersbandofcoders.comHQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 39 contacts → |
“Welcome to Band of Coders - Where Technology Fuels Innovation!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Reskomreskom.techHQ: Newark, DE, United StatesReported employees: 11-50 | Newark, DE, United States | 11-50 | Exact match | 38 contacts → |
“RESKOM is your trusted business partner in the areas of API-led integration, Enterprise Application Integration, Data Integration, and API Management, delivering seamless digital…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Simsaw LLCsimsaw.comHQ: Lehi, UT, United StatesReported employees: 51-200 | Lehi, UT, United States | 51-200 | Exact match | 33 contacts → |
“Custom Software Solutions Our mission and focus is completely tied to our understanding of what customers truly desire when working with a software development firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Shakacodeshakacode.com HQ: Paia, HI, United StatesReported employees: 11-50 | Paia, HI, United States | 11-50 | Exact match | 31 contacts → |
“ShakaCode is a global, remote-first software consultancy helping engineering organizations ship production software and adopt AI coding agents safely and effectively.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Roundtechsquareroundtechsquare.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 29 contacts → |
“At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Topnotch Innovative Technologiestopnotchinv.comHQ: Cape Cod, MA, United StatesReported employees: 11-50 | Cape Cod, MA, United States | 11-50 | Exact match | 29 contacts → |
“Stop waiting for things to happen and make them happen!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Foster Madefostermade.coHQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 24 contacts → |
“Foster Made is a Richmond-based digital agency specializing in modern, composable technology for forward-thinking organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Zuplonzuplon.com HQ: Princeton, NJ, United StatesReported employees: 51-200 | Princeton, NJ, United States | 51-200 | Exact match | 22 contacts → |
“Zuplon builds software businesses can rely on and the SaaS products to prove it.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mapleton Hillmapletonhill.comHQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 21 contacts → |
“Mapleton Hill helps complex organizations modernize digital platforms and ship products faster with AI native workflows.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | FDG Web, INCfdgweb.com HQ: Everett, WA, United StatesReported employees: 11-50 | Everett, WA, United States | 11-50 | Exact match | 20 contacts → |
“At FDG Web, we approach digital transformation as a strategic business initiative.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Delta Systemsdeltasystems.comHQ: Scottsdale, AZ, United StatesReported employees: 51-200 | Scottsdale, AZ, United States | 51-200 | Exact match | 19 contacts → |
“Fractional CTO services, MVP development, data migration, legacy code modernization and more, built by a US-based senior team that works directly with B2B companies between 15 and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Enqbatorenqbator.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 18 contacts → |
“Enqbator helps our partners transform complex challenges into simple, human-centered digital experiences.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 206 company matches
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Api-first agencies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
206 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 206 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for api-first agencies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many api-first agencies did RevenueBase find based in the United States?
The saved snapshot records 206 matching company records, 5,737 tracked contacts and 982 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Api-first agencies by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 api-first agencies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/api-first-agencies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 api-first agencies based in the United States
RevenueBase records 206 matching company records for api-first agencies based in the United States, with 5,737 tracked contacts and 982 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 api-first agencies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Msys Technologiesmsystechnologies.com HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 688 contacts → |
“MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Zemogazemoga.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 214 contacts → |
“Zemoga is now Monks Technology Services, part of Monks.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Blue Altairbluealtair.com HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 205 contacts → |
“Blue Altair is a niche, industry-recognized business and technology consulting firm that assists our clients with digital transformations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Flexion INCflexion.us HQ: Madison, WI, United StatesReported employees: 201-500 | Madison, WI, United States | 201-500 | Exact match | 194 contacts → |
“In a complex, unpredictable world, adaptability is essential.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Radiansys INCradiansys.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 174 contacts → |
“Organizations today are under pressure to innovate faster, adopt Artificial Intelligence, and build scalable digital platforms.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | White Rabbit Groupwhiterabbit.group HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 135 contacts → |
“White Rabbit Group is a software development agency with a highly diverse and creative team that takes an idea through development and into scale.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Tonic3tonic3.com HQ: Dallas, United StatesReported employees: 51-200 | Dallas, United States | 51-200 | Exact match | 103 contacts → |
“70-90% of projects fail.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Acklen Avenueacklenavenue.com HQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 95 contacts → |
“Empowering Your Business for the Future Acklen Avenue is your strategic partner in digital transformation, delivering agile, custom software solutions that revolutionize how you…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Mobomomobomo.com HQ: Damascus, MD, United StatesReported employees: 51-200 | Damascus, MD, United States | 51-200 | Exact match | 82 contacts → |
“Mobomo builds elegant solutions to solve complex problems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ingage Partnersingagepartners.com HQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 69 contacts → |
“We deliver software solutions that create lasting impact for our clients, our people, and our community.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dreamcode Softwaredreamcodesoft.com HQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 62 contacts → |
“Our expertise covers various aspects of information system development, starting from understanding the business to operating systems in production-Definition of software…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Inceptive Technologiesinceptivetechnologies.com HQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 53 contacts → |
“Inceptive is a software consulting agency that helps clients globally in their digital transformation journey.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Dycodersdycoders.com HQ: Boston, CA, United StatesReported employees: 51-200 | Boston, CA, United States | 51-200 | Exact match | 50 contacts → |
“DyCoders is a US-based software and product development company delivering scalable, high-impact digital solutions for businesses worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Band Of Codersbandofcoders.com HQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 39 contacts → |
“Welcome to Band of Coders - Where Technology Fuels Innovation!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Reskomreskom.tech HQ: Newark, DE, United StatesReported employees: 11-50 | Newark, DE, United States | 11-50 | Exact match | 38 contacts → |
“RESKOM is your trusted business partner in the areas of API-led integration, Enterprise Application Integration, Data Integration, and API Management, delivering seamless digital…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Simsaw LLCsimsaw.com HQ: Lehi, UT, United StatesReported employees: 51-200 | Lehi, UT, United States | 51-200 | Exact match | 33 contacts → |
“Custom Software Solutions Our mission and focus is completely tied to our understanding of what customers truly desire when working with a software development firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Shakacodeshakacode.com HQ: Paia, HI, United StatesReported employees: 11-50 | Paia, HI, United States | 11-50 | Exact match | 31 contacts → |
“ShakaCode is a global, remote-first software consultancy helping engineering organizations ship production software and adopt AI coding agents safely and effectively.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Roundtechsquareroundtechsquare.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 29 contacts → |
“At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Topnotch Innovative Technologiestopnotchinv.com HQ: Cape Cod, MA, United StatesReported employees: 11-50 | Cape Cod, MA, United States | 11-50 | Exact match | 29 contacts → |
“Stop waiting for things to happen and make them happen!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Foster Madefostermade.co HQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 24 contacts → |
“Foster Made is a Richmond-based digital agency specializing in modern, composable technology for forward-thinking organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Zuplonzuplon.com HQ: Princeton, NJ, United StatesReported employees: 51-200 | Princeton, NJ, United States | 51-200 | Exact match | 22 contacts → |
“Zuplon builds software businesses can rely on and the SaaS products to prove it.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mapleton Hillmapletonhill.com HQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 21 contacts → |
“Mapleton Hill helps complex organizations modernize digital platforms and ship products faster with AI native workflows.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | FDG Web, INCfdgweb.com HQ: Everett, WA, United StatesReported employees: 11-50 | Everett, WA, United States | 11-50 | Exact match | 20 contacts → |
“At FDG Web, we approach digital transformation as a strategic business initiative.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Delta Systemsdeltasystems.com HQ: Scottsdale, AZ, United StatesReported employees: 51-200 | Scottsdale, AZ, United States | 51-200 | Exact match | 19 contacts → |
“Fractional CTO services, MVP development, data migration, legacy code modernization and more, built by a US-based senior team that works directly with B2B companies between 15 and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Enqbatorenqbator.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 18 contacts → |
“Enqbator helps our partners transform complex challenges into simple, human-centered digital experiences.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 206 company matches
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Api-first agencies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
206 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 206 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for api-first agencies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many api-first agencies did RevenueBase find based in the United States?
The saved snapshot records 206 matching company records, 5,737 tracked contacts and 982 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Api-first agencies by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 api-first agencies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/api-first-agencies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗