Kidsie
Founded 2022 · 1 known investors
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An online store selling discounted children's toys and baby gear sourced as ex-display items, retail returns, and surplus stock from brands, with prices up to 60% off RRP. Items are inspected for parts and safety before sale.
Founders & leadership
Kidsie was founded in 2022 by Jennifer Mathisen and Matt Williams.
JM

Jennifer MathisenFounderJennifer Mathisen works in consumer go-to-market, growth and community building, having led Kidsie as CEO before moving into the executive chair role. She has also co-founded Amie and MomFounder Collective, previously co-founded Mums Building Companies, and was a fellow at ODF in 2025.
MW
Matt WilliamsFounder
Investors · 1
Companies House · registry record
View on Companies House ↗Confirmation statement overdue
- Registered name
- KIDSIE LTD
- Company number
- 13522684
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 Jul 2021
- Registered office
- 167-169 Great Portland Street, 5th Floor, London, London, W1W 5PF
- Nature of business (SIC)
- 62090 — Other information technology service activities
- Accounts
- last made up to 31 Jul 2025 · next due 30 Apr 2027
- Confirmation statement
- last made up to 20 Jul 2025 · next due 3 Aug 2026
Current officers · 2
- Jennifer Hildreth Mathisen — director, appointed 21 Jul 2021
- Matthew David Williams — director, appointed 20 Aug 2023
Source: Companies House public register · retrieved 16 Aug 2026. Contains public sector information licensed under the Open Government Licence v3.0.
Frequently asked questions
- What does Kidsie do?
- An online store selling discounted children's toys and baby gear sourced as ex-display items, retail returns, and surplus stock from brands, with prices up to 60% off RRP. Items are inspected for parts and safety before sale.
- Who founded Kidsie?
- Kidsie was founded by Jennifer Mathisen, Matt Williams in 2022.
- Who are Kidsie's investors?
- Kidsie's investors include South East Angels.
