Tacit

Tacit

AI-driven digital twin for building operations

Overview

Tacit builds an AI-powered digital twin platform for building operations that connects to a building’s existing infrastructure—HVAC, BMS, meters, and IoT sensors—to unify data. Its Agentic AI uses context-aware agents to diagnose, troubleshoot, and autonomously adjust systems, reducing the need for manual intervention and addressing issues like HVAC faults. It provides root-cause analysis, predicts equipment degradation, and continuously optimizes energy use in real time based on occupancy and weather, with audit trails ensuring transparency. The goal is to automate a significant portion of building issues to lower operating expenses, reduce energy waste, and free facilities teams for more strategic work.

About Tacit

Simplify's Rating
Why Tacit is rated
C-
Rated C on Competitive Edge
Rated C on Growth Potential
Rated D+ on Differentiation

Industries

Data & Analytics

Enterprise Software

AI & Machine Learning

Real Estate

Company Size

1-10

Company Stage

Seed

Total Funding

$330K

Headquarters

London, United Kingdom

Founded

1997

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Simplify's Take

What believers are saying

  • March 2026 funding from Haatch Ventures and Corallia supports commercial rollout.
  • Tacit reported £270k annual savings at UCL and 18% energy reduction in London.
  • Its careers page says it is already deploying with real clients across portfolios.

What critics are saying

  • Honeywell, Siemens, Schneider, and Johnson Controls already dominate building automation buyers.
  • Tacit raised only €300,000 in March 2026, leaving weak runway for enterprise sales.
  • If pilots stall before ARR, incumbents absorb the category and Tacit becomes irrelevant.

What makes Tacit unique

  • UCL spinout Tacit combines semantic knowledge graphs with agentic building control.
  • It integrates 30-plus protocols, unifying HVAC, BMS, meters, and IoT signals.
  • Audit trails preserve every automated action, giving operators compliance and oversight.

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Funding

Total Funding

$330k

Below

Industry Average

Funded Over

1 Rounds

Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Below Average

Industry standards

$3.3M
$330k
Tacit
$1.5M
Slack
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

401(k) Company Match

Company Equity

Company News

Startupper.gr
Mar 5th, 2026
Tacit: Ο deep-tech τεχνοβλαστός του UCL με ελληνικό DNA «σήκωσε» 300.000 ευρώ - STARTUPPER

Η Tacit, deep-tech spin-off του University College London (UCL), που ιδρύθηκε από Έλληνες ερευνητές, εξασφάλισε pre-seed - STARTUPPER

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