Proteus One surfaces the allocators whose mandate actually fits your fund, drafts the outreach in your own voice, and holds the thread — every reply classified, every follow-up paced, nothing dropped between the signal and the meeting.
Thirty minutes, against your live mandate — not a slide deck. Or start on the free tier.
Free plan, no card · 14-day trial on paid plans · No success fees, ever
Built from the allocator’s side of the table
Blackstone·Cerberus·QuadReal
A decade in institutional capital markets — receiving the decks and asking the DDQ questions, before building the thing that answers them.
Built for
Fund managers
First-time to Fund IV
Placement agents
Several mandates at once
IR teams
Existing LP base & re-ups
Private equity, private credit, real estate, infrastructure. Pre-launch — what is and is not built is set out plainly in No. 04.
A live feed of the kind of signals Proteus One reads · illustrative
No. 01
A reckoning, in three numbers.
18mo
avg. time to first close
70%
spent prospecting & follow-up
1:60
cold-outreach reply rate
Industry conditions for a first-time or mid-market institutional raise — not Proteus One results. What we can and cannot yet evidence is set out plainly in No. 04.
An essay,
in fragments.
The tools that consume a fundraise – sales platforms, CRMs, spreadsheets – were built for a different industry.
They treat a sovereign wealth fund the way they treat a SaaS lead.They remember what already happened.They sit, politely, between every signal
and the meeting it should have produced.
We spent a decade inside these institutions, watching brilliant people copy LP names from one spreadsheet into another and re-write the same email sixty times before a Wednesday board call. Proteus One is what happens when you stop accepting that as the job.
Sound familiar?
Six ways a raise leaks.
None of these are software problems. They are all the same problem: the system of record forgets, and the partner remembers.
01
The eighteen-month-old list
A Preqin export from the last raise, half of it re-seated. You are pitching people who moved firms two vintages ago.
02
The LP with no allocation left
They took the call. They were always going to take the call. Their private-markets bucket closed for the vintage in March.
03
The ticket that never fit
A $200M fund in front of an allocator with a $500M minimum and a 10% concentration cap. Twenty minutes to find out.
04
The re-up you heard about late
Their existing manager was already back in market. You found out from a placement agent at a conference in November.
05
The warm path nobody mapped
Someone on your LPAC sits on their investment committee. Nothing in your CRM knows that, so the intro never gets asked for.
06
The DDQ you have answered four times
Three hundred questions, ninety per cent identical to the last one, and the answers live in a partner’s sent folder.
No. 02
One platform. Every stage of the raise.
Three modules, designed to compose into a single workflow, so the time you save in one stage compounds into the next.
Atlas is our proprietary database of every allocator we know of, ranked against your mandate.
the agents work on top of it.
Scouts beyond the database.
Finds allocators no CRM knows about yet.
Catches deployment moments.
Closes, exits, mandate shifts, rotations.
Threads cross-campaign intel.
Warm paths across your past funds.
Reverse-DDQs the allocator.
You walk in knowing their questions.
Every draft is written from scratch, grounded in what that allocator actually cares about: the mandate they published, the move they made last quarter, the thesis they’ve been underwriting. No templates. No mail merge. No auto-spam tone.
Sara, your remarks at the an industry conference summit on the Trust’s shift toward catalytic climate capital¹ tracked closely with how we’ve been positioning Fund III.
We’re anchoring around three theses Wellcome has publicly underwritten: grid-scale storage, industrial heat, and ag-fintech in emerging Asia². Two of our existing portfolio companies are within a quarter of the milestones in your last impact report³.
I’d welcome 30 minutes. Happy to come to Euston Road, or to host you in our London office. Two slots before the close of week if useful.
Chris
Grounded in real signals
Every yellow-underlined phrase pulls from a specific filing, press moment, or allocator mandate.
Every claim cited
Tone · peer / institutional
First-name address. Warm close. No "I hope this finds you well."
Risk flags
None detected · ready for review
Drop in any DDQ: ILPA Standard, custom LP template, sovereign questionnaire. Proteus One pulls from your knowledge base, drafts every answer with citations, and surfaces the questions that need a partner’s judgment before you ship it back.
Question
Provide gross & net IRR by vintage, net of fees and carry.
Proteus One’s draft answer
writing…Returns by vintage, net of 2% management fee and 20% carry:
Fund III · too early to mark · first distribution expected Q4 ’26
Proteus One reads your data room, drafts the answer in your voice, and links every number back to the document it came from, so the reviewer can trust it in one click.
Investment process · sourcing & screening
source · Fund III LPA § 4
Deal-team composition & decision rights
source · PPM pp. 22–24
Track record · gross & net IRR by vintage
source · Audit · 2019–2024
Loss ratio & mark-to-market discipline
route · Partner judgement
ESG integration & SFDR Article classification
source · ESG policy v3
Key-person provisions & succession plan
source · LPA § 11
Reviewer queue
The 8 questions only a partner can answer are surfaced for you — not buried in the pile.
No. 03
Every step here exists for one reason, to put a partner in a room with an LP.
Commitments don’t come from dashboards. They come from meetings. Proteus One’s job is to book more of them, and to keep your partners out of the paperwork in between.
A field guide,
in six movements.
The north star —
Meetings booked,
per partner,
per week.
Drop in your data room, prior decks, last raise's outreach. Proteus One indexes against your mandate. SSO live. No services engagement, no implementation fees.
Mandate-fit ranking against your specific thesis. Each name carries a one-page brief: recent moves, public commitments, who on your cap table already knows them. The shortlist is a meeting list, ordered by who will pick up the phone.
No mass send. Drafts cite real signals from the allocator's last quarter, reference a mutual, and propose a time. Follow-ups trigger on silence, on reply, on forward, all with one goal: turn an inbox thread into a 30-minute slot.
Twelve to eighteen first meetings land on the partnership’s calendar. Proteus One writes a pre-read the night before each one: the allocator’s recent tape, questions they’ve asked other GPs, the three things to not-say. After the meeting, it drafts the follow-up from your notes before you land.
This week · partner calendar
14 meetings booked
Mon
Tue
Wed
Thu
Fri
Same partner. Same five days. 3× the conversations.
A 312-question ILPA arrives Monday; by Wednesday every answer is drafted with citations. The eight questions only a partner can answer surface cleanly, the other 304 never touch your week. Paperwork stops being the reason you cancel Thursday's call.
Allocators wire money to GPs they trust, and trust is built across three conversations, not three dashboards. Proteus One’s scoreboard was never open rates or pipeline value. It was always this: meetings taken, hands shaken, checks signed.
No. 04
We are pre-launch. No case studies, no logos, no composite averages from an alpha cohort. Here is what you can actually check.
Why there are no numbers here
You would only have to take them on trust.
Every fundraising platform on the market will show you a lift figure. Almost none of them will tell you the sample size, the counterfactual, or who was in the cohort. You evaluate managers for a living — you already know what an unaudited composite is worth. So we are not going to open with one. When we have results a fund would let us name, they will appear here with the name attached.
Verifiable, one
Built by someone who sat on the other side of the table.
Blackstone
Fundraising strategy
Cerberus
Capital markets
QuadReal
Real estate private equity
A decade in institutional capital markets, on the side of the table that receives the deck and asks the DDQ questions. That is checkable in about ninety seconds, which is more than can be said for most of what appears on a page like this. More in No. 06.
Verifiable, two
The output shows its reasoning, or it is worthless.
A score you cannot interrogate is a score you cannot defend to an investment committee. Every match states the mandate evidence behind it, and flags what it is inferring rather than asserting.
Nordic public pension — infrastructure sleeve
Fit 87
Inferred — verify before contact
Contact address inferred from firm pattern, not confirmed. Flagged rather than sent blind — a bounced first touch on your own domain costs more than the lead is worth.
Verifiable, three
What it does not do yet.
You are going to ask on the call. Here it is before you have to.
No live signal feed
Deployment-intent signals are researched per campaign, on demand. There is no always-on ingestion from EDGAR or Crunchbase yet.
No shared workspace
One seat per organisation today. Two people from the same fund get separate workspaces and cannot share a pipeline.
No calendar booking
It drafts the scheduling reply and tracks the outcome. It does not read your availability or place the invite.
Document library does not answer DDQs yet
Uploads are stored and managed. DDQ drafting works from the context you paste in — retrieval straight from your library is next, not shipped.
Gmail is the mature mailbox integration
Outlook is built and unverified in production. If your IR team runs on Outlook, say so on the call and we will be straight with you about where it stands.
Everything above is on the roadmap and none of it is on the pricing page. If a gap on that list is a dealbreaker for your raise, it is better for both of us that you know now.
No. 05
Engineered for the institutions that built the industry.
Every architectural decision is a defensible one: data residency, model lineage, auditability, and the right to be forgotten.
Data residency
EU Central, Frankfurt. Postgres with row-level isolation per workspace.
Model lineage
Anthropic Claude. Opus for composition, Sonnet for ranking, Haiku for triage.
Compliance
GDPR by design. SOC 2 Type II readiness in progress — no report issued yet. Security questionnaire on request.
Right to be forgotten
Workspace-scoped deletion. No model training on customer data, ever.
No. 06
A short letter, in the founder’s hand.
Author
Christophe El-Hage
Founder, Proteus One
Prior
Track record
$2B+ in transactions executed
“Most of the time spent fundraising is not spent in front of allocators. It is spent finding them, qualifying them, drafting around them, and chasing the threads that come back. Proteus One exists to take that work off your team’s desk so the time you have left in the cycle is the time that compounds, face to face, in the room.”
Every tool I used was built for a different industry. Proteus One is the tool I wish I’d had.
We take on a small number of funds at a time, deliberately. The call is a working session against your live mandate — asset class, ticket size, target close — and you will get a straight answer on whether this helps your raise or not.
Read personally by Chris · No SDR, no discovery script
Commercial terms
Free plan, no card. No success fees, ever.
Starter
$349 / mo
Two seats. Five active campaigns. Outreach + Atlas.
Professional
$899 / mo
Eight seats. Fifteen campaigns. Twenty-five DDQs. Reviewer queue.
Institutional
On request
Unlimited. SSO, SCIM, dedicated environment. Named partner contact.