Full Stack MarketingAI Venture
Martech Products, AI-Native Services, Media & Ecosystem to bring it all together.
The Spectrum
Products and services.
Media and investing.
Marstack develops autonomous marketing AI. Marketing Legendary delivers marketing and design services. Technology Index publishes independent technology journalism. Spectrum Venture Partner works with selected companies on growth and funding access.
Four parts. Each with its own mandate.
- IProduct StackPrivate beta
Marstack
Autonomous Marketing AI
Marstack is an autonomous marketing AI platform in development. It is designed to combine business and market data, with your team setting approval rules for proposed actions.
Explore Product Stack - IIServices Stack
Marketing Legendary
AI-native marketing and design services
Marketing Legendary provides marketing and design services for your organisation.
Explore Services Stack - IIIMedia
Technology Index
Independent technology journalism
Technology reporting and analysis. Its editorial team sets its own standards and makes its own coverage decisions.
Explore Media - IVVenture Investing
Spectrum Venture Partner
Operating support and funding pathways
Marketing, creative, product design and go-to-market support for selected companies, with access to third-party funding programmes subject to their criteria.
Spectrum Venture Partner
IProduct Stack
Autonomous marketing
for enterprises.
Marstack is an autonomous marketing AI platform in development. It is designed to combine business and market data. Your team sets the approval rules for proposed actions.
- 01Shared dataBusiness, market and channel data in one view.
- 02Autonomous marketingMarstack brings marketing intelligence and proposed actions into one platform.
- 03Approved actionYour team reviews proposed actions against its budget, scope and brand rules.

Early access by invitation. Illustrations show product direction, not a live product.
IIServices Stack
Marketing and design.
Done for you.
Marketing Legendary delivers marketing and design services for your organisation.
Marketing Legendary.
AI-native marketing and design services.
Our teams plan and manage campaigns and produce creative work. You retain your accounts, assets and campaign data.
marketinglegendary.comIIIMedia
Technology Index
Technology.
Reporting and analysis.
Technology Index publishes technology reporting and analysis for founders, operators and business leaders.
Technology Index · Editorially independent · No paid coverage
IVVenture Investing
Spectrum Venture Partner
An operating partner
for selected ventures.
Spectrum Venture Partner works with selected companies on marketing, creative production, product design and go-to-market. EU partnerships also include pathways to third-party funding programmes.
Explore Spectrum Venture PartnerSelection, admission and third-party funding are conditional and follow each programme’s own criteria.
Across Regions
Bengaluru and Dubai.
Amsterdam and Dover.
Working across India and Southeast Asia, the Middle East, Europe and the United States.
Operating across four markets
Write to us
Discuss a
partnership.
Contact the Spectrum AI Ventures partners about investing, partnerships, media enquiries or other group matters.
partners@spectrumai.venturesJoining the Marstack beta, looking for marketing execution or reading Technology Index? Go direct: marstack.app for the beta, marketinglegendary.com for services and technologyindex.co for the publication.
