Holland Mountain Group

Business Consulting

Apt Insight

They have built a strong niche reputation, employees rate the leadership and culture highly, and early ownership makes it an engaging place to build expertise. Holland Mountain Group operates as a specialized consultancy and data solutions provider based in London, United Kingdom. Founded in 2009, they focus on digital transformation, strategy, and proprietary data tools for the private capital market. The business sits in the small-to-medium enterprise band with under 200 staff members. Overall sentiment reflects strong leadership satisfaction alongside a demanding, fast-paced work environment.

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About

Holland Mountain is a specialist consulting firm and data solutions provider for the Private Capital industry. They work with GPs to establish technology and data capabilities to achieve their strategic objectives.

Founded2009

HeadquartersLondon, United Kingdom

IndustryBusiness Consulting

Websitewww.hollandmountain.com

Employees88

Open roles at Holland Mountain Group

5 open roles, newest first.

TWENTYAI - UK BANew York, New York · Hybrid

TEWENTYAI - US CONSULTANTNew York, New York · Hybrid

TWENTYAI - US SENIOR CONSULTANTNew York, New York · Hybrid

BI DeveloperGreater London, England · Hybrid

Senior ConsultantNew York, New York · Hybrid

Why people join & leave

Why join

Strong leadership and cultureDirect client exposure early onSpecialized private capital expertiseOwnership over impactful data projects

Why leave

Lower than market compensationLong hours and fast-paced workloadLimited working hour flexibilityOccasional repetitive project cycles

Company Pulse

Headcount

-14%past year

In the News

Holland Mountain was at Anduin Transactions's GP Con 2026 in New York yesterday!linkedin.com · Sep 23, 2026

Holland Mountain is back in Amsterdam for SuperReturn CFO/COO! 🚀linkedin.com · Sep 17, 2026

Press Releases Archiveshollandmountain.com · Sep 16, 2026

Monthly AI spend climbs into tens of thousands of dollars and one question is now the priority: Is there a positive return on AI investment?linkedin.com · Sep 8, 2026

$15bn+ manager selects ATLAS to centralize fund data and automate reporting - Holland Mountainhollandmountain.com · Jul 14, 2026

Employee Experience

4.5/5

Career Opportunities

4.2

Compensation & Benefits

4.0

Culture & Values

4.4

Diversity & Inclusion

4.5

Senior Management

4.2

Work-Life Balance

3.5

Quick Take

Strengths

Strong CEO approvalHolds a 100% CEO rating and a 90% business outlook score from reviews.

High employee sentimentMaintains an overall rating of 90% with a 90% recommend-to-a-friend rate.

Watch out

Work-life balance dragWork-life balance scores lowest among employee sentiment categories at 70%.

Things to consider

Below-market pay — Employees have pointed out compensation lagging behind industry benchmarks alongside long consulting hours.

Rigid work policies — Feedback highlights limited flexibility regarding working hours and office attendance, accompanied by traditional management mindsets.

Leadership

Barnaby PiggottChief Executive Officer

Leah TsirigotisDirector

Jeremy HocterDirector

Harpreet LakhanDirector

Tim FriedmanDirector

Jonathan ConnellyDirector

Divyang MistryDirector

What They Build

Holland Mountain builds the proprietary ATLAS Data Platform to centralize private capital data, orchestrate complex fund information, and automate reporting pipelines. Their engineering efforts focus on integrating third-party private equity architectures with custom data hubs and AI enablement modules. Technical initiatives involve balancing custom software interfaces with scalable enterprise data platforms.

Data Platforms

AI Enablement

Reporting Automation

Private Capital Solutions

Domains

Data Engineering

Full-Stack Engineering

Business Intelligence

Integration Engineering

Tech Stack

Python

SQL

TypeScript

JavaScript

React

Vue.js

ASP.NET

Power BI