Katrina Lake
Founder and executive chair of Stitch Fix
Katrina Lake is the American entrepreneur who founded Stitch Fix, the online personal styling service that combines algorithms with human stylists. She led the company as chief executive from 2011 to 2021, took it public in 2017 and returned as interim chief executive in 2023 before Matt Baer took over in June 2023; she remains executive chair. She is one of the most cited examples of data science applied to fashion retail.
| Role | Founder and executive chair of Stitch Fix |
|---|---|
| Organisation | Stitch Fix |
| Founded | 2011 |
| CEO | 2011 to August 2021; interim January to June 2023 |
| Known for | Algorithm plus stylist personalisation |
Who is Katrina Lake?
Katrina Lake is the founder of Stitch Fix, a US online styling service that sends customers curated selections of clothing chosen by a combination of recommendation algorithms and human stylists. She started the business in 2011 while studying for an MBA at Harvard Business School and built it into a listed company with a business model that many fashion retailers have since studied.
Career
Lake studied at Stanford University and completed her MBA at Harvard Business School in 2011, the same year she founded Stitch Fix in Cambridge, Massachusetts. The company later moved its headquarters to San Francisco and grew into one of the best known subscription and personalisation businesses in fashion e-commerce.
Stitch Fix listed on Nasdaq in November 2017, with Lake as chief executive. She stepped down as chief executive in August 2021 and became executive chair, handing day to day leadership to Elizabeth Spaulding. In January 2023, after Spaulding's departure, Lake returned as interim chief executive for a period described as six months or until a successor was appointed. During that period the company announced a reduction of around 20 per cent of its salaried workforce and the closure of a distribution centre in Salt Lake City, as it responded to weaker demand after the pandemic. In June 2023 the company appointed Matt Baer, previously chief customer and digital officer at Macy's, as chief executive, and Lake has continued as founder and executive chair.
Influence on the fashion business
Stitch Fix helped popularise the idea that fashion retail can be organised around individual customer data rather than broad seasonal assortments. Its model asks customers to describe their size, budget and style preferences, then uses that information, together with feedback on every item kept or returned, to improve future selections. This approach influenced how retailers think about personalisation, inventory planning and the role of the stylist.
The company's ups and downs are also instructive. Investors initially valued the model highly, but by early 2023 the share price had fallen sharply as consumer behaviour changed and the novelty of subscription boxes faded. For executives, Stitch Fix illustrates both the promise and the limits of data-led retail.
Katrina Lake and technology
Under Lake, Stitch Fix built a large data science organisation and published a public explanation of how its systems work. According to the company, algorithms rank items for each client using methods such as collaborative filtering, mixed effects modelling, neural networks that compare inventory with images clients share, and natural language processing of client requests. Human stylists then make the final selection and add personal notes.
- Algorithms handle ranking, warehouse assignment and stylist matching.
- Stylists provide judgement, context and the relationship with the client.
- Every kept or returned item feeds back into the data.
Why it matters
Katrina Lake demonstrated that a fashion business could be designed around data and machine learning from day one, while keeping people in the loop. Her company remains a reference point for anyone building personalisation, styling or recommendation services in fashion.
Frequently asked questions
Who is Katrina Lake?
Katrina Lake is the founder of Stitch Fix, an online personal styling service she started in 2011. She was chief executive until August 2021, became executive chair and returned as interim chief executive in January 2023. Since Matt Baer became chief executive in June 2023, she has remained executive chair.
How does Stitch Fix use algorithms?
Stitch Fix uses algorithms such as collaborative filtering and neural networks to rank clothing for each client. Human stylists then choose the final items and write personal notes, so the machine and the stylist work together.