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Zyntra OS by Double Support

Contracting software for contractors in the US

Zyntra Contracting runs a contractor’s projects from the bill of quantities to the last progress bill: what was measured, what was billed, what each subcontractor is owed and what is retained. For a company in the United States, Zyntra OS prices each line with its state and local sales tax through AvaTax, and keeps the books in dollars.

Ask for a demoSee Zyntra Contracting

Zyntra Contracting, the contracts: owner, project, period, value, certified and invoiced, and progress

A day for a contractor

The site engineer measures what was built this month. The office turns the measure into a progress bill against the bill of quantities, a subcontractor sends its own bill for its share of a line, and part of each bill is held back as retention until the work is handed over. In Zyntra Contracting a measured quantity can never go below the previous bill or above the bill of quantities, so nothing is billed twice and nothing beyond the contract.

For a company in the US

Banks through Plaid

Your bank accounts read through Plaid, their transactions reaching Accounting › Banking to be matched.

Shipping and calls

Labels and rates with FedEx, DHL Express, Shippo or EasyPost; calls and text messages through Twilio or RingCentral.

Call center teams

English-speaking agents with an American accent on calls, chat and email, from Amman, for companies in the United States.

What Zyntra OS covers

The parts below are already in Zyntra OS; you switch on the ones you use.

What you run in Zyntra OS

What it looks like in Zyntra OS, the business system Double Support makes in Amman.

A bill of quantities that holds

Fixed after the first bill, and capped on every measure.

Zyntra Contracting

Subcontractors and their share

A subcontractor never gets more than its share of a line.

Zyntra Contracting

Retention, kept right

A credited bill no longer counts as billed, and its retention is not released.

Zyntra Contracting

Each project’s real cost

Shared project costs split once across its contracts, so margins are never counted twice.

Zyntra Contracting

Sales tax by AvaTax

Each address checked by AvaTax, and each line of a sales order, an invoice or a credit note priced with its state, county, city and district tax; the invoice is recorded with AvaTax when it is issued and voided there when it is cancelled.

Avalara AvaTax integration

Payments: Stripe, Authorize.net, PayPal and Klarna

Your customer pays an invoice online by card through Stripe, Authorize.net, Braintree or 2Checkout, with PayPal, or later with Klarna.

Stripe integration

Questions from companies in the US

Can a progress bill go above the bill of quantities?

No. In Zyntra Contracting a measured quantity can never go below the previous bill or above the bill of quantities.

Does it handle subcontractors?

Yes. Each subcontractor bills its share of a line, and never more than that share.

Does Double Support work with companies in the United States?

Yes. Double Support has an office in St. Petersburg, Florida, and clients in the United States. It makes Zyntra OS, its business system, and runs English-speaking call center teams for US companies.

Does Zyntra OS work out US sales tax?

Yes, through Avalara AvaTax with your own AvaTax account: each line is priced with its state, county, city and district tax, the issued invoice is recorded with AvaTax, and a cancelled one is voided there.

More pages to read

Manufacturing software in the USBills of materials, production orders, material planning, the shop floor and each order’s real cost. Repair shop software in the USDevice intake with its history, the part held for the customer, warranty comebacks and fair technician figures. Appointment booking software in the USA calendar that never books a time twice, deposits and packages in the books, and group classes with seats. Call center software in the USThe caller’s card from your own customers, one agent per call, staffing, client billing and quality reviews. E-commerce platform in the USEvery order an invoice, the last unit never sold twice, stock and payment posted with each order. University management system in the USStudy plans, registration, GPA, attendance, the graduation audit, fees by the credit hour and the student portal. Inventory software in the USStock in each warehouse, purchasing from your vendors, lots with their expiry, and every movement in the books. ERP system in the USSales, accounting, stock, projects, HR and payroll in one system. Accounting software in the USA chart of accounts, cheques, banks, closed periods and tax, in Arabic and English. HR and payroll software in the USAttendance, shifts, leave, payroll with tax and contributions, and payslips. Contracting software in JordanA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in Saudi ArabiaA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in the UAEA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in QatarA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in KuwaitA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in BahrainA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in OmanA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in the UKA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in GermanyA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs. Contracting software in FranceA bill of quantities that cannot be over-billed, subcontractors, retention and each project’s costs.

See it with your own work

Ask for a demo and our team in Amman will show you Zyntra OS on work like yours, in Arabic or in English.

Ask for a demo +962 795 900 124 info@double-support.com