Contact Us

Contact Form

Fill out the contact form below, and we'll get back to you within 8 hours.

Email (24/7)

Phone (8 am - 6 pm GMT)

+372 880 4060 (Europe)

+1 (617) 766-3187 (North America)


A&K Ventures OÜ

Sepapaja 6

Tallinn 15551, Estonia

EU VAT: EE102039335

Frequently Asked Questions


Do you create correspondence tables between other classifications (e.g. product or patent classifications)?

Yes, we can create custom crosswalk tables between any classifications of your choosing. Please contact us for a free quotation.

Can I get a sample crosswalk table before purchasing?

Yes, you can get a sample of of our correspondence tables on this page. This will help you get familiar with our file format, and see how our product fit into your model, data pipeline or report.

Billing & Payment

Can I get an invoice?

Yes, we issue an invoice for every correspondence table purchased.

What payment methods do you accept?

We prefer bank transfer payments, but if for some reason you need to pay using your credit or debit card, we can also facilitate that. Simply place your order online, and send us an email that you'd like to pay via a credit/debit card, and we will send you a link to the page where you can make a payment.