Enterprise Data Science & Predictive AI

You shouldn't have to guess where you're losing revenue. We give you the answer before it costs you.

For any hotel, in the city or on an island. We bring your PMS, bookings and accounts into one picture.

“By understanding booking patterns, we've increased our occupancy rates significantly.”

Iro Chatzilia, CEO, Hera Hotel · Read the case

Ask the expenses agent:

A demo conversation with the Datanest Expenses Agent about a fictional hotel, with made-up numbers.
Datanest Expenses Agent Datanest Demo Hotel · Jan–Aug 2026Demo · made-up numbers
  1. You:

    Why are we behind budget?

  2. Agent:

    GOP is €69,789 below budget.

    €59,092 is revenue that did not come in and €10,696 is costs above budget. The biggest overrun: OTA commissions, +€14,547.

    Checked: every number comes from the analyses

  3. You:

    What got more expensive per room night sold?

  4. Agent:

    Three costs explain most of it:

    OTA commissions+20.7%~€23,600
    Electricity+8.9%~€7,600
    Laundry+9.4%~€4,000

    Checked: every number comes from the analyses

  5. You:

    Where should we start?

  6. Agent:

    With OTA commissions: ~€23,600 over the period, more than the other two together.

    Then ask the laundry for a new quote before the season.

    Checked: every number comes from the analyses

  7. You:

    Which entries make up the €4,800?

  8. Agent:

    Two third-party fees with no category, outside the result. Consecutive numbers four months apart: are invoices missing, or is this a double charge?

    Invoice 1374 · Marchoutside P&L€2,400
    Invoice 1375 · Julyoutside P&L€2,400

    Checked: every number comes from the analyses

  9. You:

    Occupancy fell. Should I cut staff?

  10. Agent:

    Not because of occupancy: cost per night is only a statistic.

    Payroll is €471,014, €2,186 under budget and €3,920 above last year.

    Checked: every number comes from the analyses

  11. You:

    What did competitors do?

  12. Agent:

    That is not in your data, so I will not guess.

    I need the competition report from your pricing system.

    Checked: every number comes from the analyses

Pick a question:
See what the agent does

They trust us

Enterprise data science (Plaisio, TITAN, ELPEN), 20+ years of hotel management and valuation and investment experience from an international firm, in one team.

  • TITAN
  • ELPEN
  • Plaisio
  • Katradis
  • Anemos
  • Cavo Yachting
  • Aigialos Santorini

Tools and systems we work with:Power BIPythonSQLDAXOracle DatabaseSAP

The hotel fills up. And at the end of the season, less is left than there should be.

Three scenes you have probably lived through.

  • The empty week

    You see it when it arrives. Booking pace was showing it early, but in the middle of the season nobody had time to look.

  • The price that never moved

    A conference nearby filled three nights and the rate stayed the same. You saw it in the takings, after the nights had passed.

  • The channel that sells but doesn't pay

    The OTAs bring plenty of bookings. After commission, discounts and cancellations, you don't know whether they leave you more than direct bookings do.

In all three cases the numbers existed: in the booking system, the channel manager, the accounts. You just saw them together when the season was over.

Your numbers already exist. In six different places.

We bring them into one picture.

And you see what nobody was seeing.

Cost per room night sold, April to August
ExpenseLast yearThis year
Electricity€11.70€12.78
Laundry€5.96€6.52
OTA commissions€16.09€19.43
Breakfast€5.07€5.08
Repairs€2.83€2.84

+€3.33

per room night sold, at the same occupancy. About €23,600 in five months.

How you see it earlier.

We take what you already have, the booking system, the channel manager, the accounts and the spreadsheets, and put it in one clean foundation. On top of it we build a model that compares today's booking pace with your previous years and forecasts the coming weeks. When something drifts, it alerts you.

We have already worked with data from Protel, Pylon, WebHotelier and Primal Res. If your system is a different one, we start from the reports it already produces.

The same goes for AI. A general tool has never seen your hotel. With this foundation, it has something real to work with.

The foundation first, then AI.

From scattered data sources, through a unified foundation and forecasting models, to forecasts, alerts and answers.
  1. Your sources
    • Booking system (PMS)
    • Channel manager
    • Booking engine
    • Accounting (ERP)
    • Spreadsheets
  2. The foundation we build
    • Unified, clean data
    • Forecasting models
  3. What you get
    • Forecasts
    • Alerts
    • Dashboards
    • AI answers

What we build for your hotel.

We set up phase one in 4 weeks. Phases two and three are built within the monthly service.

  1. Phase 1 · 4 weeks

    Demand forecasting

    You see how bookings for the next 8 weeks are going and where they trail last year.

    This yearLast yearTrailingDemo · made-up numbers
  2. Phase 2

    A rate that follows demand

    You know which nights can carry a higher rate and when it makes sense to open an offer.

    Higher rateOfferDemo · made-up numbers
  3. Phase 3

    Profit by channel

    You see what each channel leaves you after commission and where more direct bookings are worth the effort.

    From a €100 booking, you keep:

    • Direct€96
    • OTA€82
    • Tour operators€74
    Demo · made-up numbers
  4. Service

    Expenses agent

    You ask in plain words where the money went and get an answer from the hotel’s own figures.

    What got more expensive per room night sold?

    • OTA commissions+20.7% ~€23,600
    • Electricity+8.9% ~€7,600
    • Laundry+9.4% ~€4,000
    See what the agent doesDemo · made-up numbers
See in detail how we work with hotels

Not a hotel? We also work with retail and service companies. Businesses

Four reasons you keep putting it off, and what is true.

“This is only for big hotels”

We work with hotels of every size, from boutique hotels to groups. We start from what you already have: your booking system and your spreadsheets.

“It needs an IT department”

We set it up and we maintain it. Your team does not need to learn anything technical: it reads the monthly brief and asks what it wants.

“It's one more subscription”

You are not renting software. You pay once for the set-up and a fixed amount for the months you are open, for people who work your numbers with you. If we stop, the system and the data stay yours.

“It will take months”

Phase one is delivered in 4 weeks. We use AI in our work, openly, to save time.

What most people do instead.

Data only matters when it changes a decision.

Meet the team
  • A general AI tool

    It answers with confidence, but it has never seen your data.

  • Dashboards that show yesterday

    They tell you what happened, without showing what is coming or when a decision is needed.

  • Instinct and experience

    They are worth a lot. They are too slow for a change that shows up in the numbers first.

  • What we build

    Your own data in one foundation, a forecast for the coming weeks, and an alert when a decision is needed.

We've done it before.

Hera Hotel, Athens

Forecasting demand for the off-season

What we built

  • Analysis of 4+ years of booking data: lead time, cancellations, seasonality
  • A model that forecasts demand week by week
  • Off-season patterns: when, and at what rate, to open offers
  • A live Power BI dashboard with booking pace and pick-up alerts
See the case studies

Datanest transformed how we approach our off-season strategy. By understanding booking patterns, we've increased our occupancy rates significantly.

Iro ChatziliaCEO, Hera Hotel

Plaisio Group

We also work at a much larger scale.

For Plaisio Group we built a scoring and ranking system for 28 stores and five staff roles, in daily use. A hotel has less data, and needs it just as right.

rows of data
20M+
calculations
639
each with its own screen
5 roles
stores in daily use
28

How we work together.

We set the system up on top of your own systems, then work it with you every month. The system and the data stay yours.

  1. No cost

    Diagnostic

    You answer 15 questions about your hotel and we walk you through the findings in a 15-minute call.

  2. One-off, 4 weeks

    Set-up

    We connect your booking system, channels and accounts, and deliver the forecast for the next 8 weeks. The price is fixed and you know it before we start.

  3. The core

    Monthly service

    Every month we send you a brief with what changed and what we suggest, and we go through it with you. We add pricing and channels step by step and keep the system running. You pay for the months the hotel is open.

Three questions, half a minute.

Answer them and see where we would start with your hotel. We don't ask for your email.

Question 1 of 3How many rooms does your hotel have?
Question 2 of 3Where does your data live today?
Question 3 of 3What do you miss most?

An honest diagnosis of your data

We don't believe in blind promises. The goal is to see together whether, and where, your hotel has real room to improve.

  1. 01

    Data Readiness Scorecard (4')

    Answer 15 questions and see right away how data-ready your hotel is.

  2. 02

    A draft plan for the 3 phases

    We show you what the 3 phases would look like in your hotel: forecast, rate, channels.

  3. 03

    A 15-minute call

    We walk you through the findings. No commitment.