The AI-native partnerships firm

B2B buying moved into private conversations.

Your buyers ask peers, advisors and the software they already use, and the shortlist is set before you hear about it. Additive is the AI-native partnerships firm that puts your company in those conversations.

Finance leaders
Buyer, peer, advisor, software partner
Your buyer · to their network

Who do you trust for this? Deciding soon.

Peer · CFO at a similar company

We use Company A. Happy to share notes.

Advisor · their accounting firm

Our clients like Company B.

Partner · software they already use

I can introduce you to Company A today.

Your buyer

Perfect. Intro me to Company A.

Built on experience from

EY-ParthenonAlvarez & MarsalY CombinatorVC-backed AI fintech
The problem

If you're not in the conversation, you're not on the shortlist

Ads, cold outreach and demo forms now reach buyers after their minds are made up.

The network
9

outside voices shape each B2B purchase.

The shortlist
94%

of buyers have a ranked shortlist before they talk to a seller.

The winner
77%

choose the first vendor they talk to.

Sources: Forrester, State of Business Buying 2026; 6sense, 2025 B2B Buyer Experience Report. See how buying changed

The opportunity

Your buyers' ecosystem is now your best sales channel

The peers, advisors, software and communities your buyers trust can put you on the shortlist first. When a partner is involved, deals are:

53%

more likely to close

46%

faster to close

But most companies aren't built to capture it: 71% struggle to align partners on shared goals, and only 36% consistently measure what partners deliver.

Sources: Crossbeam, State of the Partner Ecosystem; KPMG, Architecting Partner Ecosystems 2025.

Your buyers' ecosystemWhere deals start
WarmColdUntappedBiggest opening
Why Additive

Senior partnership expertise, with AI agents doing the busywork

We build partnerships where both sides add more value than they extract, and we measure what they deliver.

Finance

We speak ROI

Led by a CPA and former Head of Finance. Every partnership is tied to revenue and measured like it.

Strategy

We diagnose first

Five-plus years of strategy and operations consulting at EY-Parthenon and Alvarez & Marsal.

Operating

We've built it

Built a VC-backed AI fintech's fastest-growing partner channel, from zero.

Additive Engine

We move faster

Our own AI agents handle research, prep and reporting, so our time goes into building trust.

About Additive

How we work

Start with a free assessment. Then choose the level of support you need.

Intro call

We learn how partnerships work for you today, who your buyers trust, and where it's falling short.

We map your ecosystem

Your current partners, the untapped groups around your buyers, and where the openings are.

Follow-up: your plan

Your biggest opportunity areas, what one partner could be worth with your numbers, and a proposed plan.

Lighter touchFully hands-on

Explore services

Find out where you show up in your buyers' ecosystem

Start with a free intro call about your partnerships today.

Book a free assessment