THE PLATFORM FOR THE ADVISORY ECONOMY

The Fourth Effect helps startups find, structure, and manage advisor relationships and helps professionals build portfolio careers on their own terms. Already have advisors working on a handshake? We help you formalize those too.

Launching Summer 2026.

The advisory economy is here.

The OECD estimates that by 2030, half of all professionals will participate in some form of advisory or portfolio work. Millions of relationships between startups and experienced professionals already exist — but most are informal, unstructured, and unprotected. Advisors working without agreements. Equity promised over coffee but never papered. Board observers with no clear terms.

The Fourth Effect is building the platform that makes these relationships work — whether you are starting a new one or cleaning up an existing one. Clear terms, proper equity structures, compliance guardrails, and a marketplace that connects startups with the right people at the right stage.

For Startups

Find advisors. Structure the relationship. Stay compliant.

Stop guessing at equity terms and handshake agreements. The Fourth Effect gives founders a clear path from “I need help” to a properly structured advisory relationship — with the right documents, the right vesting schedule, and the right compliance guardrails built in.

For Advisors & Professionals

Build a portfolio career. Get recognized. Get compensated.

Whether you’re advising one startup or ten, The Fourth Effect gives you a single place to manage your advisory relationships, track your equity, and discover new opportunities that match your expertise and availability.

The full lifecycle. One platform.

Step 1 FIND

Our matching engine connects startups with advisors, board members, and fractional executives based on stage, sector, and specific needs — not just titles and keywords.

Step 2 STRUCTURE

Every relationship is papered with clear terms: scope of work, equity compensation, vesting schedules, IP protections, and confidentiality — all generated automatically based on the relationship type.

Step 3: MANAGE

Track milestones, monitor vesting, handle renewals, and keep every relationship organized in one place. For founders managing a bench of advisors and for professionals managing a portfolio of engagements.

Already have advisors?

Let’s make it official.

Most startups don’t start from zero. You already have advisors, mentors, and board members — people who’ve been helping your company on a handshake, a text thread, or a vague promise of equity. The problem isn’t the relationship. It’s that nothing is written down.

We make it easy to formalize the relationships you already have. Bring your existing advisors onto the platform, define the terms you’ve been operating under, generate the right agreements, and get everyone on the same page — without awkward renegotiations or expensive legal bills.

900+

Startups Served

3500+

Listed Professionals

300+

Angels, LPs & Funds

20k+

Community

40+

Countries

45+

US States

445+

Cities Worldwide

OUR COMMUNITY

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Something new is coming.

We’re rebuilding The Fourth Effect from the ground up. The new platform launches this summer. Join the waitlist to be among the first to try it.