Company lists · Data refreshed September 2026
Top 25 Professional services marketplaces based in the United States
RevenueBase identified 471 professional services marketplaces headquartered in the United States as of September 2026 and tracks 143,950 professional contacts across them, including 4,524 with verified work emails. New York is the largest hub.
This list covers professional services marketplaces headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 professional services marketplaces based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 127,560 contacts → | ||||
Partial evidence “Upwork is the world’s work marketplace that connects businesses with independent talent from across the globe.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,001 contacts → | ||||
Indirect evidence “With over $5 billion in global payments,$200 million in annual revenue, 70k contracts signed, Toptal is the world’s largest fully remote workforce.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,126 contacts → | ||||
Indirect evidence “Guru offers a secure, flexible, and cost-effective platform for Employers and Freelancers around the globe to connect, collaborate and get work done.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 648 contacts → | ||||
Partial evidence “JustAnswer is the world’s leading expert marketplace, connecting more than 16 million people worldwide with doctors, lawyers, and more.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 521 contacts → | ||||
Indirect evidence “Microworkers is a service of Weblabcenter, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 374 contacts → | ||||
Indirect evidence “Fiverr Pro is an all-in-one premium business solution tailored to your business needs, enabling you to recruit, onboard, manage, and pay talent without worry or hassle, so you can…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 272 contacts → | ||||
Indirect evidence “Of course!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 201 contacts → | ||||
Indirect evidence “Over 40K+ global agencies specializing in branding, marketing, web design, technology, and business services Submit your best designs and discover award-winning brands and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 200 contacts → | ||||
Partial evidence “The Marketplace connects business owners with the top 1% of virtual assistants, freelancers, and agency applicants in eCommerce, digital marketing, and web development.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 97 contacts → | ||||
Indirect evidence “You shouldn't need twenty applications to find good remote work.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 86 contacts → | ||||
Indirect evidence “Fieldengineer.com (FE) is a global on-demand workforce for the telecom & system support industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 84 contacts → | ||||
Indirect evidence “With 1 million monthly visitors, Expertise helps people connect with local experts and helpful resources for life's most important decisions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 83 contacts → | ||||
Partial evidence “Arc is a global marketplace of top remote talent, vetted and ready to interview.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 70 contacts → | ||||
Indirect evidence “Work is changing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 69 contacts → | ||||
Partial evidence “Uptalent connects companies with a curated network of remote, independent professionals across architecture, engineering support, business operations, marketing, and design.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 66 contacts → | ||||
Indirect evidence “Gun.io simplifies tech hiring by connecting companies with software engineers for full-time, contract, and project-based roles.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 44 contacts → | ||||
Partial evidence “For the mom on the go or the young entrepreneur, the Moonlighting marketplace is the fastest way to find and hire freelancers and small businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 43 contacts → | ||||
Partial evidence “Cadre is an on-line marketplace app that provides event planning organizations with better way to compliantly contract and manage their event freelancers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 38 contacts → | ||||
Indirect evidence “We’re a platform that lets companies work efficiently and securely with top, thoroughly selected IT contractors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 33 contacts → | ||||
Partial evidence “crowdspring is the world’s leading marketplace for buyers and sellers of crowdsourced creative services, including logo design, web design, graphic design, product design and even…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 32 contacts → | ||||
Partial evidence “SkillHire is a marketplace for hiring top freelance developers, designers and small studios.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 30 contacts → | ||||
Indirect evidence “Graphite enables seamless access to the world's best independent talent.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 30 contacts → | ||||
Indirect evidence “Freelancer onboarding, management, and payments made easy Work as we know it is undergoing a profound change.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 27 contacts → | ||||
Indirect evidence “Distro was started with the growing technology company in mind.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 24 contacts → | ||||
Indirect evidence “Bada is a global talent platform that revolutionizes how freelancers are matched with businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional services marketplaces. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names professional services marketplaces.
- Partial evidence
- Its own public description names part of professional services marketplaces, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional services marketplaces. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 471 professional services marketplaces based in the United States
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Professional services marketplaces based in the United States at a glance
As of Sep 29, 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 471 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among professional services marketplaces, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “professional services marketplaces”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names professional services marketplaces), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among professional services marketplaces, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 4,524 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Professional services marketplaces by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names professional services marketplaces, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many professional services marketplaces are there based in the United States?
RevenueBase identified 471 professional services marketplaces headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Upwork, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most professional services marketplaces?
New York leads with 51 headquartered companies, followed by San Francisco (27) and Chicago (13).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,524 verified decision-maker contacts tracked across these 471 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
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Professional services marketplaces by geography
- Professional services marketplaces based in Paris, France
- Professional services marketplaces based in London, United Kingdom
- Professional services marketplaces based in New York, United States
- Professional services marketplaces based in San Francisco, United States
- Professional services marketplaces based in Australia
- Professional services marketplaces based in Brazil
- Professional services marketplaces based in Canada
- Professional services marketplaces based in France
- Professional services marketplaces based in Germany
- Professional services marketplaces based in India
- Professional services marketplaces based in the Netherlands
- Professional services marketplaces based in Sweden
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 Smart Search, 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.
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