LOI · 01Under NDA
B2B SaaSSeries BBerlin, DE
Company under NDA
- Tier
- Team Growth
- Seats
- 25
- Annual value
- €14K
- Signed
- 12 Apr 2026
“Pilot contingent on Q3 2026 SOC 2 Type 2 attestation timeline.”Request under NDA
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Pre-seed · €100K-€200K · close 2026-07-28
For investors
Sussur is an on-device AI sales coach for the four million individual sellers who buy their own tools. Below: founder credentials, traction signal, deck, revenue model, ROI calculator, comparable exits, and the default-alive math.
The live deck is the canonical version. Filling in name + email + company lets us follow up with context. We never sell or share that data.
Why this founder
David Marin. Two YC interviews (Avo S21 · #2 Product Hunt; Basetool W22). Eight years across YC + enterprise: Waydev W21 · Amdocs · Vodafone · Deloitte Digital. Best Thesis in Data Science at University of Twente. IEEE Xplore 2020. Sussur shipped v0.10.25 in 3 months solo. Read the story →
Live traction
22 of 500 founding spots claimed
478 left
Full traction page: /traction live count, anonymized LOIs, code velocity, monthly metric commitment.
Use of funds · €100K SAFE
Sixty percent goes straight into getting users.
Founder unpaid through month 12. The product is built. This is just growth money.
GTM
Google + LinkedIn paid. Founder content. Product Hunt. Setapp. The channels that turn 89 organic waitlist signups into a validated CAC by month six.€60K · 60%
Product
OpenRouter eval credits. Design sprints on team-admin UX. Paid user research. The Mac-app surface that scales from rep to team.€20K · 20%
Legal
Delaware C-Corp flip. SAFE paperwork. GDPR + DPA. EU AI Act Article 50 counsel.€10K · 10%
Tooling
LLM credits. Observability. Analytics. Paddle, Apple Developer, Sentry — the boring monthlies.€10K · 10%
Total · €100K · 4 line items
Three named advisors
- Paul Burca
- Founder, Assista AI (Gluon Syndicate portfolio, Feb 2025)CEE AI fundraising, Gluon process, post-SAFE GTM
- Alex Circei
- Founder/CEO, Waydev (YC W21)Enterprise B2B GTM, YC ship cadence
- Adrian Marin
- Co-founder, Avo (avohq.io)Product and go-to-market (brother)
Letters of intent
6 signed pilots before public launch
Operators committing to pilot or buy Sussur once we open the Business tier. Names are confidential under NDA until each counterparty consents. Signed PDFs are available on request to verified investors under NDA. Email below to receive the unredacted set.
- Signed LOIs
- 6
- Seats committed
- 120
- Year-one pipeline
- €102K
- LOI · 02Under NDASales ConsultingMid-marketAmsterdam, NL
Company under NDA
- Tier
- Team Growth
- Seats
- 15
- Annual value
- €8,640
- Signed
- 18 Apr 2026
“Replacing Salesloft Conversations for our coaching workflow.”
Request under NDA - LOI · 03Under NDAExecutive RecruitingSeries ADublin, IE
Company under NDA
- Tier
- Team Starter
- Seats
- 10
- Annual value
- €2,880
- Signed
- 22 Apr 2026
“Founding-cohort pricing on a one-year annual commit.”
Request under NDA - LOI · 04Under NDAFinancial ServicesLate-stageZurich, CH
Company under NDA
- Tier
- Team Scale
- Seats
- 50
- Annual value
- €58K
- Signed
- 2 May 2026
“On-prem LLM is the only viable path given our regulatory posture.”
Request under NDA - LOI · 05Under NDACustomer SuccessMid-marketLondon, UK
Company under NDA
- Tier
- Team Growth
- Seats
- 8
- Annual value
- €4,608
- Signed
- 8 May 2026
“Coaching depth that Gong and Otter don't ship.”
Request under NDA - LOI · 06Under NDALegal ServicesRegulated mid-marketMunich, DE
Company under NDA
- Tier
- Team Scale
- Seats
- 12
- Annual value
- €14K
- Signed
- 15 May 2026
“Privacy posture plus the on-prem LLM option is what closed the deal.”
Request under NDA
Signed PDFs go live per card as each counterparty consents to public disclosure. Until then, each card opens an NDA-gated email request. Counterparty names are revealed individually as approval lands.
ROI · for the buyer reading this page
Two questions decide whether Sussur pays for itself.
The math is in lib/roi.ts. Tweak the inputs; the result updates in real time.
Personal · €49 Founding (one-time, lifetime updates)
Close one extra deal a year, the math is over.
- Annual upside
- €5,000
- Sussur cost
- €49
- Multiple
- 102×
formula · extraDeals × dealValue ÷ €49
Business · Team Growth €48/seat/mo annual
A 5% lift on quota attainment pays for the seat at month two.
- Annual lift
- €30,000
- Annual cost
- €5,760
- Payback
- 2.3 mo
- Net ROI
- 4×
formula · (seats × quota × liftPct% − seats × €48 × 12) ÷ (seats × €48 × 12)
Revenue at scale
Live
Model Sussur's revenue at different scales using the real published pricing. The first 500 Personal customers price at €49 (Founding cap), thereafter €99 blended. Business is €48/seat/mo annual (Growth tier, the "most popular" default).
2,500
macOS one-time, BYO LLM key
80
Team Growth · €48/seat/mo annual
Personal revenue
€223K
One-time
Business ARR
€46K
Recurring
Annual revenue
€269K
Combined
Gross profit
€252K
@ 94% GM
Gross margin holds at ~94% across business tiers at 70% utilization. LLM cost per coached minute: $0.0025 baseline (Gemini Flash + Claude Opus 4.7 report mix). See the full pricing model →
Comparable exits
Conversation intelligence has a buyer.
The canonical comp is Chorus.ai. Revenue platforms acquire the analytics layer once it crosses scale.
2021
Chorus.ai → ZoomInfo
$575M all-cash
Conversation-intelligence pure play. Same buyer profile (revenue platforms acquiring the analytics layer). Canonical Sussur comp.
2018
Outreach.io late-rounds (private) → ...
$4.4B (2021 last private)
Revenue platform proving sales-engagement can scale past $300M ARR before exit. Adjacent category, different stack.
2024
InsideSales / XANT → Aurea
Undisclosed
Predictive-sales platform absorbed by a holdco. Negative comp, what happens when the architecture is commodity cloud + AI veneer.
2023
Refract.ai (UK) → Allego
Undisclosed
Sales-coaching tooling absorbed by a learning-platform. Confirms the coaching-to-platform M&A vector.
Default-alive · month 12
€100K + €50K Y0 revenue = €50K cash at month 12.
Founder unpaid through month 12. Burn ~€8K/month. Priced-seed pre-conversations start at month 9 so the next round is not a fire drill.
M0 · closeM6M9 · priced-seed conversationsM12 · €50K runway
- M0-6 · Validate channels
- €40K paid acquisition tests · Setapp + Mac App Store + Product Hunt submissions
- M6-9 · First small-team revenue
- Setapp accepted · MAS live · first 2-3 paid business pilots
- M9-12 · Priced-seed conversations
- 500+ paid licenses · €35-50K cumulative revenue · pre-seed close → priced seed handoff
Assumptions · raise €100K · burn €8K/mo · Y0 revenue €50K base case
What month 12 looks like
“500+ paid licenses across three channels. €35-50K cumulative revenue. Two to three paid business pilots at 10-25 seats. Setapp accepted. Mac App Store live. The same operator who shipped v0.10.25solo in three months, now with the first hire in seat and priced-seed conversations under way.”
Sussur business plan §11 · month-12 milestone
Pre-seed · €100K-€200K · close 2026-07-28
Talk to David.
Fifteen minutes is enough to know if Sussur fits your portfolio. Calendly is the fastest path; email is the fallback.
Investor FAQ
What are you raising?
€100K-€200K SAFE pre-seed in May 2026. Default-alive math: €100K + €50K Y0 revenue = €50K cash at month 12 with founder unpaid. Priced seed conversations start month 9.
What's the use of funds?
60% GTM: Google + LinkedIn paid, founder content, Product Hunt, Setapp — the channels that turn 89 organic waitlist signups into validated CAC by month six. 20% product: eval credits, design sprints, paid user research, the Mac-app surface that scales from rep to team. 10% legal: Delaware C-Corp flip, SAFE paperwork, GDPR + DPA, EU AI Act counsel. 10% tooling: LLM credits, observability, analytics, the boring monthlies.
Why now?
Apple Silicon + on-device models hit cloud parity in 2025 (Parakeet TDT broke 7% WER on the Open ASR Leaderboard). EU AI Act Article 50 transparency obligations land 2 Aug 2026, making cloud-AI sales tools a procurement red flag in regulated verticals. Incumbents announced the war: Gong launched Mission Andromeda Feb 2026, Granola raised $125M Series C at $1.5B March 2026, Clari + Salesloft merged Dec 2025. Architecture decides who wins.
Why you?
David Marin. Serial founder. Co-founded Avo (open-source Rails admin, Y Combinator S21 interview, #2 Product of the Day on Product Hunt) and Basetool (database admin tool, Y Combinator W22 interview) with brother Adrian. Eight years across the YC ecosystem (Waydev YC W21, early engineer) and enterprise (Amdocs on Vodafone, Deloitte Digital). BSc Computer Science, University of Twente 2019, Best Thesis Award in the Data Science track. Co-author of "Effectiveness of neural language models for word prediction of textual mammography reports" (Marin, Mocanu, Seifert), IEEE Xplore 2020. Ironman finisher. Sussur shipped v0.10.25 in 3 months solo across every layer (audio, on-device STT, multi-LLM orchestration, RAG, 6-signal rapport algorithm, persona memory). Three named advisors: Paul Burca (Assista AI, Gluon portfolio), Alex Circei (Waydev YC W21), Adrian Marin (Avo co-founder, brother).
What's the moat?
Three layers. (1) On-device privacy is an architecture decision, not a feature: Gong, Otter, Granola, Cluely all run cloud STT + cloud LLM round-trip and cannot retrofit without rebuilding from scratch. (2) The prosumer slice that buys on a personal credit card is too small for Gong's enterprise model and too sales-specific for Granola's horizontal play, a 4M+ individual-buyer wedge with €100M+ revenue potential and no incumbent. (3) Integration depth: 12+ months to replicate the production system from scratch (6-signal rapport algorithm, persona memory, 11 versioned LLM prompts with promptfoo eval suites, on-device STT + multi-LLM orchestration + RAG real-time loop).
What about Windows?
Mac-first because 60%+ of our ICP runs Mac (US/EU SaaS sellers, founder-sellers, agency owners). macOS desktop share is ~12% globally but our ICP segments skew 60%+ Mac. Windows port is a 6-8 week effort sized for the priced seed at month 13-18, not the pre-seed. Until then, Windows users sign up to be notified and we'll honor Founding tier pricing when the Windows build ships.
The rest of the picture
Story
Founder narrative, Avo + YC + IEEE + Waydev + Amdocs.
Why now
Three timed forces: Apple Silicon parity · EU AI Act Aug 2 2026 · incumbent war.
Security
On-device data flow + GDPR + EU AI Act readiness + DPA download.
Traction
Live waitlist count, eight signed LOIs, code velocity, monthly metric commitment.
Pricing
Personal + Business tiers, EUR/USD switch, founding counter.
Compare
Sussur vs Granola, Cluely, Otter, Gong, tldv, Clari + Salesloft, MS Copilot for Sales.
Profiles
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