When was IES founded?

IES was founded in 1994 and raised its 1st funding round 4 years after it was founded.

Where is IES located?

IES is headquartered in Glasgow, United Kingdom.

How many employees does IES have?

As of Mar 31, 2026, the latest employee count at IES is 597.

Is IES a funded company?

IES is a funded company, having raised a total of $2.17M across 23 funding rounds to date. The company's 1st funding round was a $***** Unattributed round, raised on Apr 29, 1998.

How much is IES worth?

The last known valuation of IES was $***** as of Jun 30, 2023.

When was the latest funding round of IES?

IES's latest funding was a $***** Unattributed round on Jun 30, 2023, with participation from 0 investor.

What is the annual revenue of IES?

Annual revenue of IES is £19.1M as on May 31, 2023.

Where does IES rank among its competitors?

IES ranks 1st amongst 23 active competitors, of which 3 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was Adaptis, which secured $4M in Apr, 2025.

Who are the top competitors of IES?

IES's top competitors include Adaptis, Cove.tool and ENVI-met. Among them, Adaptis secured the most recent funding round in April, 2025.

IES - 2026 Company Profile, Team, Funding, Competitors & Financials

IES is an acquired company based in Glasgow (United Kingdom), founded in 1994 by Don McLean. It operates as a Provider of building performance analysis software and related consulting services. IES has raised $2.17M in funding, with last known valuation of $*****. The company has 23 active competitors, including 3 funded and 3 that have exited. Its top competitors include companies like Adaptis, Cove.tool and ENVI-met.

Company Details

Provider of building performance analysis software and related consulting services. The company offers tools for design, retrofit, and operation of efficient buildings. It provides expertise in design analysis, compliance, rating systems, and computational fluid dynamics. The company also delivers services for decarbonisation plans, energy models, and retrofit optioneering.

Website: iesve.com
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Key Metrics

Founded Year

1994

Location

Glasgow, United Kingdom

Stage

Acquired

Total Funding

$2.17M in 23 rounds

Latest Funding Round

Unattributed, Jun 30, 2023, $*****

Last Known Valuation

$***** as on Jun 30, 2023

Investors

Scottish Enterprise & 58 more

Ranked

1^st among 23 active competitors

Annual Revenue

£19.1M as on May 31, 2023

Employee Count

597 as on Mar 31, 2026

Similar Companies

DesignBuilder & 1 more

Exit Details

Acquired by Apax (Feb 27, 2024)

View IES's full profile

IES is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
INTEGRATED ENVIRONMENTAL SOLUTIONS LIMITED CIN: SC151456 , United Kingdom, Active	Jun 09, 1994	$23M (As on May 31, 2023)	175 (As on May 31, 2022)
INTEGRATED ENVIRONMENTAL SOLUTIONS INDIA PRIVATE LIMITED CIN: U93090PN2010FTC137424 , India, Active	Sep 28, 2010	$1.14M (As on Mar 31, 2024)	-

IES got acquired by Apax on Feb 27, 2024.

Click here to take a look at IES's acquisition in detail

IES has raised a total funding of $2.17M over 23 rounds. Its first funding round was on Apr 29, 1998. IES has 7 institutional investors and 52 angel investors.

Here is the list of recent funding rounds of IES:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jun 30, 2023	4326983	Unattributed	6116682	8041233	7477635	3031467
Nov 01, 2021	8501546	Grant (prize money)	2580390	6835850	5430442	Europa
Sep 01, 2021	4639059	Grant (prize money)	3558285	1309914	3411904	Europa

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View details of IES's funding rounds and investors

The founders of IES is Don McLean.

Here are the details of IES's key team members:

Don McLean: Founder of IES.

View details of IES's Founder profiles and Board Members

IES's employee count trend

IES has 597 employees as of Mar 26. Here is IES's employee count trend over the years:

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Top competitors of IES include Adaptis, Cove.tool and ENVI-met. Here is the list of Top 10 competitors of IES, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	IES 1994, Glasgow (United Kingdom), Acquired	Provider of building performance analysis software and related consulting services	$2.17M	Scottish Enterprise, Europa & 57 others	63/100
2nd	Adaptis 2022, Toronto (Canada), Seed	Provider of AI-powered platform for capital planning and asset decarbonization	$11M	2048 Ventures, Building Ventures & 5 others	57/100
3rd	Cove.tool 2017, Atlanta (United States), Series B	AI and web-based building design platform for AEC professionals	$36.6M	Coatue, TechSquare Labs & 5 others	44/100
4th	ENVI-met 1994, Essen (Germany), Acquired	Developer of 3D modelling software for urban climate adaptation planning	-	-	30/100
5th	Rapiere 2013, Cambridge (United Kingdom), Funding Raised	Software solution for performing analysis on building information models	-	Low Carbon Innovation Fund	24/100
6th	GREENbimlabs 2018, Aachen (Germany), Unfunded	Provider of AI and data-based solutions to analyze BIM designs	-	-	24/100
7th	NATURAL AI Walsall (United Kingdom), Unfunded	Provider of AI-designed architectural residences optimized for sustainability and individual lifestyles	-	-	24/100
8th	Neutron-Technologies Ahmedabad (India), Unfunded	Provider of building information modelling services for design and sustainability	-	-	24/100
9th	Looper 2020, Edinburgh (United Kingdom), Unfunded	Developer of AI-powered software quantifying carbon impact of construction products	-	-	23/100
10th	NECADA 2014, Barcelona (Spain), Unfunded	Provider of cloud-driven sustainability simulation software for construction purposes	-	-	22/100