Strategic Advisory · Established 2016

Throughput Before
Headcount.

Lightmill Group works on process, systems and throughput — the operational detail that determines whether a good strategy produces anything.

Connect With Us
L·G
A Wrenfield Industries Company
Sectors Served

Six sectors. Practitioner-led.

Our teams are led by people who have run operations, not by analysts who have studied them.

01

Manufacturing

Discrete and process operations, single plant through multi-site networks.

02

Logistics & Distribution

Warehousing, fulfilment and the transport layer between.

03

Professional Services

Firms where throughput is casework, matters or engagements rather than units.

04

Technology Operations

Data centres, infrastructure and the operational side of software delivery.

05

Energy & Utilities

Generation, networks and transition assets.

06

Healthcare Operations

Scheduling, capacity and patient flow in provider organizations.

About

Engineers by background.

Lightmill Group is an operations advisory firm working across North America, Europe and Asia Pacific. As part of Wrenfield Industries, we bring international coverage to work that is inherently local: it happens where the work happens.

Our work is partner-led, conviction-weighted, and built around a small number of engagements at a time. We do not pursue volume. We pursue outcomes the principal can name three years later.

40+
Countries of operation
3
Continental practices
2020
Year established
Disciplines

Four disciplines. Measured outcomes.

Each discipline is measured against a baseline agreed before we start, so the result is not a matter of opinion.

01

Throughput & Flow

Finding the constraint, proving it with data, and moving it — usually with scheduling and sequencing before capital.

02

Systems & Data

Making the operating systems agree with each other, so that one number means one thing across the organization.

03

Quality & Reliability

Variation, rework and unplanned downtime, addressed at cause rather than managed at symptom.

04

Capability & Training

Building the internal capability to hold the gains, because improvements that depend on us do not last.

Locations

Six offices. On the floor.

Six offices across three continents, each staffed by people who spend their time on site.

Americas · HQ
Milwaukee
Wisconsin, United States
Headquarters
Americas
Monterrey
Mexico
Office
EMEA · HQ
Rotterdam
Netherlands
Regional Lead
EMEA
Gothenburg
Sweden
Office
APAC · HQ
Busan
Busan
Regional Lead
APAC
Hong Kong
Hong Kong SAR
Office
M·G
The Parent

About Wrenfield Industries

Wrenfield Industries is a privately-held global advisory and investment conglomerate with operations in 40+ countries. The Group's portfolio spans strategic services, capital deployment, and operating businesses across sectors — held together by a long-term, founder-aligned philosophy.

Notes

Working notes.

Short technical notes from live work. Written for practitioners.

Throughput

Your Bottleneck Moved and Nobody Updated the Report

Data

One Number, Three Definitions

Reliability

Unplanned Downtime Is Usually Planned Badly

Contact

Before the statement of work.

Describe the constraint in your own terms. We will tell you if it is one we can move.

Office Milwaukee, Wisconsin
Hours By appointment
Affiliations & Standards
UN Global Compact ISO 9001:2015 World Economic Forum · Partner The Conference Board