Ossai Space Limited · RC-7847194 · Nigeria

Building the software Africa runs on.

The company behind BlackBoxNg and Sendsaii — products designed, engineered, and scaled from Nigeria to the highest standard of craft.

A software engineer working late in a green-lit studio, city lights behind
BlackBoxNg — secure institutional messagingSendsaii — safer money for the internetOssai Space — built in Nigeria, for the worldBlackBoxNg — secure institutional messagingSendsaii — safer money for the internetOssai Space — built in Nigeria, for the worldBlackBoxNg — secure institutional messagingSendsaii — safer money for the internetOssai Space — built in Nigeria, for the worldBlackBoxNg — secure institutional messagingSendsaii — safer money for the internetOssai Space — built in Nigeria, for the world

01 / Products

Two products, one standard of craft

Every product we ship carries the same engineering culture, design bar, and long-term ambition.

blackbox.com.ng
BlackBoxNG website — The room where it's decided, provably sealed

Secure institutional messaging

BlackBoxNg

Provably confidential communications with the governance regulators demand. Board deliberations, M&A, and regulatory responses get end-to-end confidentiality even the operator can't break — without giving up membership control or audit trails.

  • Operator provably unable to read content
  • Organizational identity, membership control & audit trails
  • Audited, standards-based crypto core with sovereign deployment
sendsaii.com
Sendsaii website — Pay anywhere online, expose your card nowhere

Safer money for the internet

Sendsaii

Multi-currency wallets and disposable one-time virtual cards. Every online purchase gets a fresh card that's used once and then dies — so a leaked checkout, a compromised merchant, or stolen details never turn into a drained account.

  • One-time virtual cards, revealed once behind a PIN
  • NGN, USD, GBP, EUR & more, side by side
  • Team spending cards with limits for businesses

02 / Company

A Nigerian software company with a builder's mindset

Ossai Space Limited exists to build software products that solve real problems. As the company behind BlackBoxNg and Sendsaii, we provide the shared foundation — engineering standards, governance, and long-term thinking — that lets each product team focus on its users.

We are registered with the Corporate Affairs Commission of Nigeria and operate with a simple belief: world-class software can, and should, be built from here.

Three engineers reviewing work together around a laptop in a green-lit studio

RC-7847194

CAC registration number

Nigeria

Registered & headquartered

02

Products in the family

03 / How we build

The principles behind every product

/01

Product first

We start with a real problem and a real user, then engineer backwards from the experience they deserve.

/02

Engineering discipline

Security, reliability, and maintainability are non-negotiable across every product we ship.

/03

Built to last

We think in decades, not demo days — building durable products rather than chasing trends.

Hands typing on a green-backlit keyboard beside a notebook of system diagrams

Sketch first · Ship deliberately

04 / Contact

Let's build something together

Partnerships, press, or product enquiries — we read everything and reply quickly.

hello@ossaispace.com
Founder leaning on a concrete wall with a phone, lit by a green rim light