Antaeus

Municipal Payment Processing Softwareantaeusllc.com

Antaeus provides the Antaeus Transaction Utility (ATU), an internet-based payment processing platform serving municipalities, schools, and nonprofit organizations through a modular subscription pricing model with no per-transaction fees.

Company typePrivate
Founded2004
HeadquartersCedarburg, United States
Headcount11–50
GTM typeB2B
OfferingSoftware

What Antaeus does

Antaeus is a Cedarburg, Wisconsin-based software company founded on January 20, 2004, by a banker with 25 years of industry experience. The company built and operates the Antaeus Transaction Utility (ATU), an internet-based transaction processing platform that handles payments and integrates with back-office accounting systems for its clients. Its primary customer segments are municipalities, schools, and nonprofit organizations. Antaeus also operates eCity Transactions, a dedicated sub-brand targeting cities and counties as a focused go-to-market channel.

The company's business model relies on a modular subscription pricing structure with no per-transaction fees, contrasting with competitors that levy per-transaction charges. The platform was designed by founder Bill Kappel, whose banking-domain expertise shaped the technical architecture of ATU. Antaeus serves small-to-medium municipal clients across multiple U.S. regions, with a geographic footprint spanning the Midwest, Southeast, and California based on named customers in Wisconsin, Minnesota, and California. The company is privately held, operates with a headcount in the 11-50 range, and has no disclosed external funding rounds.

Antaeus firmographics

Firmographics

Name: Antaeus
Legal name: Antaeus LLC
Website: https://antaeusllc.com
Company type: Private
Founded year: 2004
Operating status: Operating
Headcount range: 11–50 employees
Short description: Antaeus provides the Antaeus Transaction Utility (ATU), an internet-based payment processing platform serving municipalities, schools, and nonprofit organizations through a modular subscription pricing model with no per-transaction fees.
Ownership category
akta.pro rank

Antaeus industry classification

Industry

Product category: Municipal Payment Processing Software
NAICS: Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)
SIC: Finance Services (6199)
akta.pro primary industry: POS-to-Online Unified Payments (Omnichannel Payments) (CRAFALAL)

Keywords

Online payment processing
Municipal transaction software
Government payment solutions
Web-based transaction platform
Utility billing software

Where Antaeus is headquartered

Location

Headquarters

HQ city: Cedarburg
HQ country: United States
HQ region: North America

Offices1 record

Markets served

Antaeus business model

Business model

GTM type: B2B
Offering type: Software
Cost components: Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

Programming/Setup Fees: One-time programming fee based on services proposed. This covers the initial setup and customization of transaction pages for each client.
Monthly Subscription: Recurring monthly fee based on total volume and services provided. All services are modular and purchased as needed. Clients use their own merchant and gateway accounts.
Convenience Fees: Optional convenience fees determined per transaction type. Late fees can be incorporated by transaction if applicable. All fees collected are owned by the city/school/business.

Pricing tiers

Model	Billing	Price
One time/ perpetual license	Pay-as-you-go	One-time programming fee based on services proposed
Subscription	Monthly	Monthly subscription based on volume and services

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Antaeus product offering

Product offering

Core offering

Antaeus provides the Antaeus Transaction Utility (ATU), a web-based platform that simplifies the creation, acceptance, and processing of multiple types of online payments and non-payment transactions for municipalities and organizations. Each transaction type functions independently with its own URL, appearance, payment methods, and communications, and integrates with existing accounting systems. The platform supports credit/debit cards, ACH/eCheck, and no-payment transactions without requiring special hardware or software, with implementation possible in as little as two weeks.

Product overview

Antaeus offers a modular transaction processing platform centered on the Antaeus Transaction Utility (ATU), which enables municipalities and organizations to create, accept, and process various online payment and non-payment transactions. The core ATU platform provides independent, customizable transaction modules that work with existing organizational systems. The eCity Transactions brand serves as a customer-facing portal built on ATU technology for city and county use cases.

Differentiator

Problem solved

Functional benefit

Brands

Antaeus Transaction Utility (ATU): Online payment and transaction processing platform designed for municipalities and organizations with multiple transaction types

Products and services

Antaeus Transaction Utility (ATU) A web-based transaction processing platform that simplifies the creation, acceptance, and processing of multiple types of online payments and non-payment transactions for municipalities and organizations. Each transaction type functions independently with its own URL, appearance, payment methods, and communications, and integrates with the client's existing accounting systems. Supports credit/debit cards, ACH/eCheck, and no-payment transactions with no per-transaction fees.
eCity Transactions A customer-facing portal brand powered by the ATU platform, designed for municipalities and counties to manage various online transactions including utility payments, permits, licenses, and registrations.

Quantifiable outcome

Implementation time from consultation to go-live can be as little as two weeks

Companies that use Antaeus

Customer profile

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Antaeus technology and API

Technology

Technology focussed Yes

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Feature8 records

Antaeus partnerships and signals

Strategic signal

Recent moves3 records

Expansion highlights3 records

Antaeus competitors and assessment

Company assessment

Direct peers

CivicPlus: CivicPlus provides integrated government websites, civic engagement, and online payment/forms solutions to municipalities — directly overlapping with ATU's website blending and transaction processing capabilities.
Granicus: Granicus offers a government experience platform spanning communications, forms, and online payments for public-sector agencies — overlapping with Antaeus's transaction utility and multi-department workflows.
Paymentus: Paymentus is a leading electronic bill payment provider for utilities, municipalities, and financial institutions — directly comparable to Antaeus's bill payment and transaction processing offering.
Invoice Cloud: Invoice Cloud delivers electronic bill presentment and payment (EBPP) solutions specifically to government, utilities, and insurance — a very direct functional peer to Antaeus's municipal utility billing and payment focus.
PayIt: PayIt is a government-focused digital payments platform serving state and local agencies with online tax, utility, permit, and license payments — the most direct functional competitor to Antaeus's ATU.

Broad incumbents

Stripe: Stripe is a general-purpose online payments platform that increasingly serves government and public-sector clients — a much broader incumbent whose payment APIs and Checkout compete indirectly with ATU's payment processing layer.
Conduent: Conduent offers government services including payment processing for agencies and municipalities — a larger incumbent with overlapping electronic payments and transaction processing capabilities.
Tyler Technologies: Tyler Technologies is a large public-sector software provider (includes the former NIC government payments business) that sells ERP, payments, and citizen services to municipalities — a much broader incumbent with overlapping payment functionality.
CentralSquare Technologies: CentralSquare provides public-sector software including finance, utility billing, and payment solutions for cities and counties — a broader but functionally adjacent platform to Antaeus.

Emerging players

OpenGov: OpenGov provides modern cloud ERP, budgeting, and citizen services software to state and local governments — an emerging GovTech player whose payments and forms capabilities intersect with Antaeus's.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Antaeus financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Antaeus leadership team

Management profile

Number of profiles

Antaeus funding detail

Funding detail

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Antaeus M&A and investment

M&A and investment

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Antaeus

What does Antaeus do?

Is Antaeus a public or private company?

Antaeus is a private company. It is classified as founder individual operated bootstrapped and is currently operating.

When was Antaeus founded?

Antaeus was founded in 2004. It employs 11 to 50 people.

Where is Antaeus based?

Antaeus is headquartered in Cedarburg, United States, in the North America region.

How does Antaeus make money?

Three revenue lines are on record. Programming/Setup Fees are the primary driver. The others are monthly Subscription and convenience Fees.

Who are Antaeus's main competitors?

Direct peers on record are CivicPlus, Granicus, Paymentus, Invoice Cloud and PayIt. Broad incumbents are Stripe, Conduent, Tyler Technologies and CentralSquare Technologies. OpenGov is listed as an emerging player.

Does Antaeus have an API?

No public API is recorded for Antaeus.

What industry is Antaeus in?

Antaeus's product category is Municipal Payment Processing Software. Its primary akta.pro industry code is CRAFALAL, POS-to-Online Unified Payments (Omnichannel Payments). Its NAICS code is 522320 and its SIC code is 6199.