Nusii
Online proposal software for agencies and professional services firms that send sales proposals often
- Founded 2013
About Nusii
Nusii makes online proposal software for agencies and professional services firms. It is designed to cut the time spent on proposal design so users can get a proposal to a prospect quickly and then follow its progress. The company is based in Spain.
What Nusii offers
- Proposal builder — reusable sections, full templates, variables that fill in client details, and brand colours and logos.
- E-signatures — legally binding signing in the browser.
- Optional items and currencies — clients choose optional line items, with multi-currency and tax settings per account or client.
- Smart notifications — alerts when a proposal is opened, when options are picked and when it is accepted or declined.
- Sending and filtering — proposals sent from a user's own email address or custom domain, and filtered by sent, unopened or opened.
- Integrations — links into existing sales workflows.
Who it works with
Nusii serves B2B agencies and service firms that send many proposals. It reports that 6,985 companies use it, and one quoted user is Profound.
Key facts
- Based in: Spain
- Languages: localised into 35 languages
- Trial: 14-day trial available
Profile written by TrustList from the business's own published information, Sep 2026.
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