Duffel

Steve Domin and Tom Bates profile from Duffel
Duffel Logo

Duffel is an all-encompassing dev environment to make starting a travel business a seamless experience.

When airlines adopted ticketing technology in the late 20th century they were on the cutting-edge; unfortunately as technology has moved on airline now find the backend systems they rely on to be long antiquated. From travel agents to passengers, everyone in the industry has been frustrated by the backends that don't live up to the expectations of modern consumers.

Duffel was founded by Steve Domin, an engineer and Tom Bates, a designer, who had both previously worked together as early employees at GoCardless.

Dev Tools

Investment Total
Blossom led Duffel’s $4.7m Seed round with participation from Y Combinator. Duffel has since gone on to raise their $21.5m Series A led by Benchmark and $30m Series B led by Index Ventures.

More Series A investments

Tines makes the lives of security and operations teams on the frontlines easier through advanced, contextually aware automation. Connect to any REST API or web application in seconds.

SaaS / Security

Eoin Hinchy and Thomas Kinsella profile from Tines
  1. Country:
    Ireland
  2. Sector: 
    Cybersecurity
  3. DAte of partnership: 
    Jul 2019
Blossom led Tines’s $4.1M Series A. Tines has most recently raised a $125m Series C from Goldman Sachs.
View Profile

Castor reinvents the way companies find and understand their way around data.

SaaS / Data

Picture of the castor team
  1. Country:
    France
  2. Sector: 
    Enterprise SaaS
  3. DAte of partnership: 
    Jun 2022
Blossom led Castor's $23.5m Series A round. Acquired in 2025 by Coalesce.
View Profile

Cado captures forensic data from compromised systems and enables security analysts to rapidly sift through the evidence and collaborate on investigations.

SaaS / Security

Cado team photo
  1. Country:
    UK
  2. Sector: 
    Enterprise SaaS
  3. DAte of partnership: 
    Mar 2021
Blossom led Cado's $10m Series A round. Cado has since raised a $17m Series B led by Eurazeo. Acquired in 2025 by DarkTrace.
View Profile

Maki is building a conversational AI agent that liberates HR teams

SaaS / HR

  1. Country:
    France
  2. Sector: 
    Enterprise SaaS
  3. DAte of partnership: 
    Jan 2024
Blossom led Maki's $28.6M Series A
View Profile

AutogenAI leverages generative AI to help companies write bids and tenders for public sector and corporate contracts.

Generative AI

AutogenAI Team
  1. Country:
    United Kingdom
  2. Sector: 
    Generative AI
  3. DAte of partnership: 
    JUL 2023
Blossom led Autogen AI's $22.3m Series A round. They've since raised a $39.5M Series B co-led by Salesforce Ventures and Spark Capital.
View Profile

Checkout’s mission is to build the future of commerce by building by a full stack technology that offers access to a payment gateway, advanced risk and fraud monitoring tools, a cutting-edge processor and the relevant acquirers, all in unified payments solution.

Infrastructure / Fintech

Guillaume Pousaz profile image from Checkout.com
  1. Country:
    UK
  2. Sector: 
    Financial Services
  3. DAte of partnership: 
    Apr 2019
Blossom invested in Checkout’s $230m Series A alongside DST Global and Insight Partners. Checkout has since gone on to raise their $150m Series B, $450m Series C and $1bn Series D.
View Profile