AirSign

What AirSign does

AirSign (AirSign Pty Ltd) is an Australian electronic-signature platform headquartered in Melbourne, Victoria, targeting Australian SMBs, mid-market firms, and regulated enterprises across at least nine verticals (Construction, Real Estate, HR, Legal, NDIS Providers, Allied Health, Accountants, Financial Services, Aged Care). The web-based product enables legally binding document signing via a four-step flow: upload PDF, place fields, send to signers, download signed PDF, with features including templates, reusable field types (Signature, Initials, Date, Text, Dropdown, Checkbox, Radio, Approve/Decline, Attachment), custom domain emails, SMS notifications, and an E-Witness feature designed for Australian witnessing requirements. The platform also exposes a REST API with OAuth 2.0 authentication and an MCP (Model Context Protocol) Server enabling AI assistants (Anthropic Claude, OpenAI ChatGPT) to create and send signing sessions programmatically.

All customer data is stored in Australian data centres under the Australian Privacy Principles (APPs), with compliance positioned against the Electronic Transactions Act 1999, the ACSC Essential 8 Maturity Model, and AATL-chained digital signatures that auto-verify in Adobe Acrobat/Reader. Enterprise-grade capabilities include SAML/OIDC SSO (Microsoft Entra ID, Okta, Google Workspace), role-based permission groups, and integration recipient support with SharePoint, Xero, and Salesforce.

AirSign monetises via a freemium, subscription-led model with usage-based overages: Free ($0), Starter ($5/month, 10 signing sessions), Business ($29/month, 80 sessions, 5 users), and Enterprise (custom pricing, multi-year). Payment is processed via Stripe with no credit card required for the 30-day free trial. Distribution is product-led growth through the website (app.airsign.com.au) and API, supplemented by an enterprise sales motion, SEO-led comparison and use-case content, and a free Signature Generator lead magnet. The company is privately held, bootstrapped (no disclosed funding), and operates with 1–10 employees.

Name

AirSign

Legal name

AirSign Pty Ltd

Website

https://airsign.com.au

Company type

Private

Founded year

2025

Operating status

Operating

Headcount range

1–10 employees

Short description

AirSign (AirSign Pty Ltd) is an Australian e-signature platform serving SMBs, mid-market firms, and regulated enterprises with legally compliant digital signatures, Australian data residency, e-witnessing, templates, and API/MCP integration for AI assistants.

Ownership category

akta.pro rank

Product category

Electronic Signature Software

NAICS

Software Publishers (5132), Software Publishers (513210)

akta.pro primary industry

eSignature, Forms & Digital Workflow Platforms (HDAEAHAJ)

Keywords

• Electronic signatures
• Document signing
• E-witnessing software
• Electronic signature API
• Australian e-signature platform

Headquarters

HQ city

Melbourne

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription Plans: Monthly subscription tiers (Free, Starter, Business, Enterprise) with included signing sessions. Higher tiers include more sessions and user accounts.
2. Pay-per-use Sessions: Additional signing sessions beyond plan inclusions charged at per-session rates ($2 for Free, $1 for Starter, $0.50 for Business). No blocking - overages billed at end of billing cycle.
3. Enterprise Custom Pricing: Contact sales for custom enterprise agreements for high-volume users with tailored pricing and terms.
4. API Access: API access included free with all paid plans with same session quota as plan. Free tier includes limited API access.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

AirSign provides a web-based electronic signature platform that lets Australian businesses send, sign, witness, and manage PDF documents entirely online. The core product combines reusable templates, drag-and-drop signature fields, complete audit trails, e-witnessing for Australian legal requirements, and Australian-hosted data storage, and is extended by a REST API and MCP server for developer and AI-assistant automation.

Product overview

AirSign is a single unified e-signature platform designed for Australian businesses. The core product is the AirSign E-Signature Platform, a web-based solution for digital document signing with features including templates, e-witnessing, and audit trails. The AirSign API extends the platform for developer automation and AI assistant integration via MCP. A separate Free Signature Generator tool allows users to create signature images without an account. All data is stored in Australian data centers.

Differentiator

Problem solved

Functional benefit

Products and services

• AirSign E-Signature Platform Web-based Australian e-signature platform that lets businesses upload PDFs (or DOC/DOCX/PNG/JPG files converted to PDF), place signature, text, checkbox, dropdown and other fields, send signing links to multiple recipients in sequence or parallel, capture e-witnessing signatures, and download signed PDFs with complete audit trails. Targeted at Australian SMBs through to enterprises that need legally binding electronic signatures with Australian data residency.
• AirSign API REST API for programmatically creating, sending, and managing signing sessions, templates, files, and webhooks, using OAuth 2.0 Client Credentials authentication. Includes an MCP (Model Context Protocol) server that lets AI assistants such as Claude and ChatGPT create documents, sessions, and templates and send them for signing. Targeted at developer and platform teams inside Australian organisations and AI builders globally; available on all paid plans with the same session quota as the plan.
• Free Signature Generator Standalone free browser tool that lets users draw, type, or upload an image to create a digital signature and download it as a transparent PNG, with all processing performed client-side and no sign-up required. Used as a top-of-funnel lead-generation tool for the main AirSign platform.

Quantifiable outcome

• 80% savings compared to DocuSign pricing
• +4 more outcomes

Named customers9 records

Segments9 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature13 records

Partnerships

Nine partnerships are on record, tiered core.

• Microsoft SharePointcoreTechnology or IntegrationIntegration recipient option in AirSign allowing completed documents to be automatically filed or synced to SharePoint as part of document management workflows.
• XerocoreTechnology or IntegrationIntegration recipient for automatically syncing completed financial documents and agreements to Xero accounting platform.
• SalesforcecoreTechnology or IntegrationIntegration recipient for CRM-synced document signing workflows, allowing completed agreements to be automatically filed or synced to Salesforce.
• Anthropic ClaudecoreTechnology or IntegrationMCP (Model Context Protocol) server integration allowing Claude AI assistant to draft agreements, create sessions, and send documents for signing within conversations. OAuth 2.1 authentication with dynamic client registration.
• OpenAI ChatGPTcoreTechnology or IntegrationMCP server integration enabling ChatGPT to create, review, and send signing sessions. Developer mode required for write actions with confirmation before each write operation.
• Microsoft Entra IDcoreTechnology or IntegrationIdentity provider supported for SAML-based Single Sign-On, enabling enterprise authentication through Microsoft Entra ID.
• OktacoreTechnology or IntegrationIdentity provider supported for SAML-based Single Sign-On, enabling enterprise authentication through Okta.
• Google WorkspacecoreTechnology or IntegrationIdentity provider supported for SAML-based Single Sign-On, enabling enterprise authentication through Google Workspace.
• StripecoreTechnology or IntegrationPayment processing partner. Stripe processes credit card payments (Visa, Mastercard, American Express) on behalf of AirSign. Credit card details not stored on AirSign servers.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Adobe Acrobat Sign: Adobe's enterprise e-signature solution bundled with Adobe Document Cloud. Directly comparable feature set to AirSign (PDF-based signing, AATL-trusted certificates, enterprise SSO) and a named competitor on AirSign's site.
• DocuSign: Global category leader in e-signature and agreement management. Directly comparable to AirSign's core product (digital document signing, templates, audit trails) and named as AirSign's primary competitor on dedicated comparison pages.
• Secured Signing: Australian e-signature provider offering digital signatures and in-person/remote witnessing compliant with Australian Electronic Transactions Act. The closest domestic competitor to AirSign, competing head-to-head on data residency and Australian legal compliance.
• SignNow (airSlate): E-signature and document workflow platform under airSlate, offering templates, API, and integrations comparable to AirSign's feature set. Competes for the same SMB and mid-market signing workflows.
• OneSpan Sign (formerly e-SignLive): Enterprise-grade e-signature solution with strong identity verification, audit trails, and regulated-industry focus. Comparable to AirSign's emphasis on legal compliance, AATL signatures, and enterprise SSO.
• PandaDoc: Document workflow automation platform with built-in e-signature, templates, and CRM integrations. Directly comparable to AirSign's e-sign + templates + API offering and a named competitor on AirSign's site.
• Dropbox Sign (formerly HelloSign): Simple, developer-friendly e-signature product owned by Dropbox, targeting SMBs and teams with API access. Comparable to AirSign's PLG/self-serve motion and template-driven workflows.

Emerging players

• BoldSign: Newer cloud e-signature platform with API and embedded signing, targeting SMBs and developers. Comparable to AirSign's PLG/API-first motion but lacks AirSign's Australian data-residency positioning.
• DigiSigner: Lightweight, affordable web-based e-signature tool aimed at small businesses. Comparable to AirSign's Starter-tier price point and simple signing flow, though it does not match AirSign's enterprise or Australian-compliance depth.

Broad incumbents

• Microsoft (Microsoft 365 e-sign capabilities): Broad incumbent bundling e-signature and document workflow into the Microsoft 365 / SharePoint / Dynamics ecosystem via partners such as Adobe Sign. A potential substitute for AirSign inside Microsoft-centric Australian enterprises and named as an SSO identity provider partner.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/airsign-it

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about AirSign