Upsize LINE CRM
Turn your LINE account into a CRM
Know your customers, group them into audiences and reach them with the right message — broadcasts, rich menus and no-code automation, all from one dashboard.
Making Tech Easy
Marketing and tech, built to grow your sales
Upsize is a Bangkok team that builds the systems behind growing brands — LINE CRM, chat, booking, loyalty and accounting — and delivers IT, web and app projects shaped around what you actually need.
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Our products
Five apps that work together — one login, licensed per app and per branch, so you only switch on what you use.
Upsize Chat
One inbox for every channel
Answer customers from LINE, Facebook, Instagram, WhatsApp, TikTok, Shopee, Lazada and your website in a single shared inbox — with team assignment and an AI assistant.
Booking System
Appointments and classes, booked in LINE
Let customers book services, appointments and classes through LINE or a customer portal, while staff, rooms and equipment are assigned automatically.
Loyalty
Points and membership across branches
Reward repeat customers with points and membership tiers that work across all your branches, with rewards and redemptions in a customer portal.
ERP
Accounting made simple for Thai SMEs
From quotation to tax invoice, with automatic double-entry bookkeeping, VAT reporting and withholding tax certificates — for one company or many.
Latest articles
More Articles →VAT and withholding tax basics for Thai SMEs
Quotation, tax invoice, VAT report, withholding tax certificate: a plain-language map of the documents a Thai small business handles, and where software can help.
Loyalty programmes that work across branches
A points programme only builds loyalty if customers can use it everywhere. Here is how to design one that follows the customer from branch to branch.
Fewer no-shows and less back-and-forth with smarter booking
Clinics, salons, studios and class-based businesses lose time to messages and missed appointments. Here is what a good booking flow should handle.
One inbox for every customer channel
LINE, Facebook, Instagram, WhatsApp, marketplaces and your website — customers message wherever they like. Here is how to answer them all without losing track.
Turn your LINE Official Account into a CRM
Most brands in Thailand already talk to customers on LINE. Here is how tags, audiences and automation turn those chats into a system that helps you sell.
Upsize in numbers
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Ready to grow with less friction?
Tell us what you want to achieve. We will recommend only what is necessary and effective.
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