Company lists · Data refreshed November 2026
Top 25 Project billing services based in the United States
RevenueBase identified 291 company matches for project billing services associated with the United States as of November 2026 and tracks 2,261 professional contacts across them, including 709 with verified work emails. New York is the largest hub.
This list covers company matches for project billing services 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 November 6, 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 project billing services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 254 contacts → | ||||
Exact match “TransCentra is one of the largest and most trusted billing and payments providers in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 211 contacts → | ||||
Exact match “ProfitSolv is a comprehensive suite of billing, payments, and software solutions for legal, accounting, and other professional services firms including consulting, architecture…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 176 contacts → | ||||
Exact match “Rev.io is the only provider to seamlessly integrate native communication billing, professional service automation (PSA), and payment processing-delivering a comprehensive…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 66 contacts → | ||||
Exact match “We handle the financial operations so small businesses don’t have to.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “Businesses come to PaySimple with a simple, but important need – a better way to accept payments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 46 contacts → | ||||
Exact match “Established in 1988, The Consult supplies business related services to thousands of providers and healthcare businesses nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 40 contacts → | ||||
Exact match “Entrepreneurs and small businesses have a passion for their products or services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 40 contacts → | ||||
Exact match “Cash flow is the lifeblood of any contractor’s business, but billing is painful and slow.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 37 contacts → | ||||
Exact match “Founded in 2012, True North LLC is a premier provider of essential business services, catering to clients across North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 36 contacts → | ||||
Exact match “Since 1994, Orange County, California based, Advanced Billing Consultants, Inc, has developed a close relationship with all large insurance companies, as well as the state…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “Due Diligence is an online accounting and consulting service that saves you time so you can focus on what is most important to your business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 24 contacts → | ||||
Exact match “Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 22 contacts → | ||||
Exact match “We are developers of time billing software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 22 contacts → | ||||
Exact match “For over 55 years, Kopp has been committed to delivering quality services to our clients with transparency, technology and trust.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 21 contacts → | ||||
Exact match “We are Medical Billing Experts Since 1998, Outsource Receivables, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 20 contacts → | ||||
Exact match “At Fast Billing Solution, our highly experienced team of medical billers, technical engineers, and client managers allows us to ensure unmatched quality medical billing services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 14 contacts → | ||||
Exact match “Doctors' Management Service has provided a service-oriented medical billing option to the healthcare industry for 25 years in a unique "Client's First" method.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Blue Collar Back Office was founded with the primary objective to provide professional level administrative and financial services for growing businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “Clad is project management and billing software for building infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match “Otto AI seamlessly takes care of bookkeeping, taxes, invoicing, contracts, compliance, and cash flow for self-employed entrepreneurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 11 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “IProfessional is a financial and administrative service designed specifically to support the needs of Independent Professionals and the companies that hire them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “NAC is an organization that provides secure, customized billing solutions for the purpose of maximizing client profitability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “ConnectBooster, a Kaseya company, is a software platform that eliminates monthly accounting tasks, slashes payment fees, and automatically cuts the time from sending invoices to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 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 “project billing services”. 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 291 project billing services based in the United States
See the full list, filter by size, metro and specialty, and access 709 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Project billing services based in the United States at a glance
As of Nov 6, 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 291 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 “project billing services” 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 709 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 November 6, 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 “project billing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many project billing services are there based in the United States?
RevenueBase identified 291 company matches for project billing services associated with the United States as of November 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?
Transcentra tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most project billing services?
New York leads with 6 company records, followed by Austin (5) and Houston (5).
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 709 professional contacts with verified work emails tracked across these 291 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 291 project billing services 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.
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Company intelligence · public preview
Top 25 project billing services 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 291 matching company records for project billing services based in the United States, with 2,261 tracked contacts and 709 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: November 6, 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 project billing services 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 |  Transcentratranscentra.comHQ: Norcross, GA, United StatesReported employees: 1,001-5,000 | Norcross, GA, United States | 1,001-5,000 | Exact match | 254 contacts → |
“TransCentra is one of the largest and most trusted billing and payments providers in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Profitsolvprofitsolv.comHQ: West Palm Beach, FL, United StatesReported employees: 201-500 | West Palm Beach, FL, United States | 201-500 | Exact match | 211 contacts → |
“ProfitSolv is a comprehensive suite of billing, payments, and software solutions for legal, accounting, and other professional services firms including consulting, architecture…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  rev.iorev.ioHQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 176 contacts → |
“Rev.io is the only provider to seamlessly integrate native communication billing, professional service automation (PSA), and payment processing-delivering a comprehensive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Decimaldecimal.comHQ: Fully Remote, United StatesReported employees: 51-200 | Fully Remote, United States | 51-200 | Exact match | 66 contacts → |
“We handle the financial operations so small businesses don’t have to.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Paysimplepaysimple.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 53 contacts → |
“Businesses come to PaySimple with a simple, but important need – a better way to accept payments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  TCItcibilling.comHQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 46 contacts → |
“Established in 1988, The Consult supplies business related services to thousands of providers and healthcare businesses nationwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  TWO Roadstworoadsco.comHQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 40 contacts → |
“Entrepreneurs and small businesses have a passion for their products or services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Sitelinesiteline.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 40 contacts → |
“Cash flow is the lifeblood of any contractor’s business, but billing is painful and slow.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  True North LLCtruenorthllp.comHQ: East Liverpool, OH, United StatesReported employees: 51-200 | East Liverpool, OH, United States | 51-200 | Exact match | 37 contacts → |
“Founded in 2012, True North LLC is a premier provider of essential business services, catering to clients across North America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Advanced Billing Consultants, INCadvancedbillingconsultants.comHQ: Rancho Santa Margarita, CA, United StatesReported employees: 11-50 | Rancho Santa Margarita, CA, United States | 11-50 | Exact match | 36 contacts → |
“Since 1994, Orange County, California based, Advanced Billing Consultants, Inc, has developed a close relationship with all large insurance companies, as well as the state…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  DUE Diligence US Corpduediligenceuscorp.comHQ: Coral Gables, FL, United StatesReported employees: 11-50 | Coral Gables, FL, United States | 11-50 | Exact match | 28 contacts → |
“Due Diligence is an online accounting and consulting service that saves you time so you can focus on what is most important to your business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Invoice Home INCinvoicehome.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 24 contacts → |
“Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Timesolv Corporationtimesolv.comHQ: Eagan, MN, United StatesReported employees: 11-50 | Eagan, MN, United States | 11-50 | Exact match | 22 contacts → |
“We are developers of time billing software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Kopp Billing Agency, INCkoppbilling.comHQ: Syracuse, NY, United StatesReported employees: 51-200 | Syracuse, NY, United States | 51-200 | Exact match | 22 contacts → |
“For over 55 years, Kopp has been committed to delivering quality services to our clients with transparency, technology and trust.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Outsource Receivables, INCoutsourcereceivables.comHQ: Mounds View, MN, United StatesReported employees: 11-50 | Mounds View, MN, United States | 11-50 | Exact match | 21 contacts → |
“We are Medical Billing Experts Since 1998, Outsource Receivables, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fast Billing Solutionsfastbillingsolutions.comHQ: Melville, NY, United StatesReported employees: 51-200 | Melville, NY, United States | 51-200 | Exact match | 20 contacts → |
“At Fast Billing Solution, our highly experienced team of medical billers, technical engineers, and client managers allows us to ensure unmatched quality medical billing services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Doctor's Management Service INCdoctorsmanagementservice.orgHQ: South Easton, MA, United StatesReported employees: 11-50 | South Easton, MA, United States | 11-50 | Exact match | 14 contacts → |
“Doctors' Management Service has provided a service-oriented medical billing option to the healthcare industry for 25 years in a unique "Client's First" method.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Blue Collar Back Officebluecollarbackoffice.comHQ: Netcong, NJ, United StatesReported employees: 1-10 | Netcong, NJ, United States | 1-10 | Exact match | 13 contacts → |
“Blue Collar Back Office was founded with the primary objective to provide professional level administrative and financial services for growing businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  CLADwithclad.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 12 contacts → |
“Clad is project management and billing software for building infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Otto AIjoinotto.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 12 contacts → |
“Otto AI seamlessly takes care of bookkeeping, taxes, invoicing, contracts, compliance, and cash flow for self-employed entrepreneurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Medsol Billing, LLCnymedsol.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 |  Iprofessionaliprofessional.comHQ: Doylestown, PA, United StatesReported employees: 201-500 | Doylestown, PA, United States | 201-500 | Exact match | 11 contacts → |
“IProfessional is a financial and administrative service designed specifically to support the needs of Independent Professionals and the companies that hire them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  National Acceptance Companynacbilling.comHQ: Harrisburg, PA, United StatesReported employees: 11-50 | Harrisburg, PA, United States | 11-50 | Exact match | 9 contacts → |
“NAC is an organization that provides secure, customized billing solutions for the purpose of maximizing client profitability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Connectboosterconnectbooster.comHQ: Fargo, ND, United StatesReported employees: 11-50 | Fargo, ND, United States | 11-50 | Exact match | 8 contacts → |
“ConnectBooster, a Kaseya company, is a software platform that eliminates monthly accounting tasks, slashes payment fees, and automatically cuts the time from sending invoices to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Medical Billing Professionalsmbpros.com HQ: Royersford, PA, United StatesReported employees: 1-10 | Royersford, PA, United States | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 291 company matches
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Project billing services: dataset insights
November 6, 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
291 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 291 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: November 6, 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 project billing services?
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 project billing services did RevenueBase find based in the United States?
The saved snapshot records 291 matching company records, 2,261 tracked contacts and 709 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: November 6, 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
Project billing services by geography
Cite this list
RevenueBase Data Team. Top 25 project billing services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/project-billing-services/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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Project billing services based in Brazil
- Project billing services based in Germany
- Project billing services based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 project billing services based in the United States
RevenueBase records 291 matching company records for project billing services based in the United States, with 2,261 tracked contacts and 709 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: November 6, 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 project billing services 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 | Transcentratranscentra.com HQ: Norcross, GA, United StatesReported employees: 1,001-5,000 | Norcross, GA, United States | 1,001-5,000 | Exact match | 254 contacts → |
“TransCentra is one of the largest and most trusted billing and payments providers in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Profitsolvprofitsolv.com HQ: West Palm Beach, FL, United StatesReported employees: 201-500 | West Palm Beach, FL, United States | 201-500 | Exact match | 211 contacts → |
“ProfitSolv is a comprehensive suite of billing, payments, and software solutions for legal, accounting, and other professional services firms including consulting, architecture…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | rev.iorev.io HQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 176 contacts → |
“Rev.io is the only provider to seamlessly integrate native communication billing, professional service automation (PSA), and payment processing-delivering a comprehensive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Decimaldecimal.com HQ: Fully Remote, United StatesReported employees: 51-200 | Fully Remote, United States | 51-200 | Exact match | 66 contacts → |
“We handle the financial operations so small businesses don’t have to.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Paysimplepaysimple.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 53 contacts → |
“Businesses come to PaySimple with a simple, but important need – a better way to accept payments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | TCItcibilling.com HQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 46 contacts → |
“Established in 1988, The Consult supplies business related services to thousands of providers and healthcare businesses nationwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | TWO Roadstworoadsco.com HQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 40 contacts → |
“Entrepreneurs and small businesses have a passion for their products or services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sitelinesiteline.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 40 contacts → |
“Cash flow is the lifeblood of any contractor’s business, but billing is painful and slow.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | True North LLCtruenorthllp.com HQ: East Liverpool, OH, United StatesReported employees: 51-200 | East Liverpool, OH, United States | 51-200 | Exact match | 37 contacts → |
“Founded in 2012, True North LLC is a premier provider of essential business services, catering to clients across North America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Advanced Billing Consultants, INCadvancedbillingconsultants.com HQ: Rancho Santa Margarita, CA, United StatesReported employees: 11-50 | Rancho Santa Margarita, CA, United States | 11-50 | Exact match | 36 contacts → |
“Since 1994, Orange County, California based, Advanced Billing Consultants, Inc, has developed a close relationship with all large insurance companies, as well as the state…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | DUE Diligence US Corpduediligenceuscorp.com HQ: Coral Gables, FL, United StatesReported employees: 11-50 | Coral Gables, FL, United States | 11-50 | Exact match | 28 contacts → |
“Due Diligence is an online accounting and consulting service that saves you time so you can focus on what is most important to your business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Invoice Home INCinvoicehome.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 24 contacts → |
“Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Timesolv Corporationtimesolv.com HQ: Eagan, MN, United StatesReported employees: 11-50 | Eagan, MN, United States | 11-50 | Exact match | 22 contacts → |
“We are developers of time billing software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Kopp Billing Agency, INCkoppbilling.com HQ: Syracuse, NY, United StatesReported employees: 51-200 | Syracuse, NY, United States | 51-200 | Exact match | 22 contacts → |
“For over 55 years, Kopp has been committed to delivering quality services to our clients with transparency, technology and trust.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Outsource Receivables, INCoutsourcereceivables.com HQ: Mounds View, MN, United StatesReported employees: 11-50 | Mounds View, MN, United States | 11-50 | Exact match | 21 contacts → |
“We are Medical Billing Experts Since 1998, Outsource Receivables, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fast Billing Solutionsfastbillingsolutions.com HQ: Melville, NY, United StatesReported employees: 51-200 | Melville, NY, United States | 51-200 | Exact match | 20 contacts → |
“At Fast Billing Solution, our highly experienced team of medical billers, technical engineers, and client managers allows us to ensure unmatched quality medical billing services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Doctor's Management Service INCdoctorsmanagementservice.org HQ: South Easton, MA, United StatesReported employees: 11-50 | South Easton, MA, United States | 11-50 | Exact match | 14 contacts → |
“Doctors' Management Service has provided a service-oriented medical billing option to the healthcare industry for 25 years in a unique "Client's First" method.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Blue Collar Back Officebluecollarbackoffice.com HQ: Netcong, NJ, United StatesReported employees: 1-10 | Netcong, NJ, United States | 1-10 | Exact match | 13 contacts → |
“Blue Collar Back Office was founded with the primary objective to provide professional level administrative and financial services for growing businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | CLADwithclad.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 12 contacts → |
“Clad is project management and billing software for building infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Otto AIjoinotto.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 12 contacts → |
“Otto AI seamlessly takes care of bookkeeping, taxes, invoicing, contracts, compliance, and cash flow for self-employed entrepreneurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Medsol Billing, LLCnymedsol.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Iprofessionaliprofessional.com HQ: Doylestown, PA, United StatesReported employees: 201-500 | Doylestown, PA, United States | 201-500 | Exact match | 11 contacts → |
“IProfessional is a financial and administrative service designed specifically to support the needs of Independent Professionals and the companies that hire them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | National Acceptance Companynacbilling.com HQ: Harrisburg, PA, United StatesReported employees: 11-50 | Harrisburg, PA, United States | 11-50 | Exact match | 9 contacts → |
“NAC is an organization that provides secure, customized billing solutions for the purpose of maximizing client profitability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Connectboosterconnectbooster.com HQ: Fargo, ND, United StatesReported employees: 11-50 | Fargo, ND, United States | 11-50 | Exact match | 8 contacts → |
“ConnectBooster, a Kaseya company, is a software platform that eliminates monthly accounting tasks, slashes payment fees, and automatically cuts the time from sending invoices to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Medical Billing Professionalsmbpros.com HQ: Royersford, PA, United StatesReported employees: 1-10 | Royersford, PA, United States | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 291 company matches
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Project billing services: dataset insights
November 6, 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
291 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 291 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: November 6, 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 project billing services?
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 project billing services did RevenueBase find based in the United States?
The saved snapshot records 291 matching company records, 2,261 tracked contacts and 709 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: November 6, 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
Project billing services by geography
Cite this list
RevenueBase Data Team. Top 25 project billing services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/project-billing-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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