Transforming maritime communications since 2017

Sedna is redefining communication for the world's most complex supply chains. Designed for high-stakes industries like maritime and logistics, Sedna pioneers the evolution of traditional email into an intelligent workspace, connecting messages, data, and decisions in one secure, cloud-native platform. Sedna is trusted by market leaders to reduce complexity, improve operational performance, and make better decisions, faster.

Founded by maritime and technology expert Bill Dobie, Sedna was a response to decades old communication challenges.  Sedna is backed by Insight Partners, GK Goh Ventures, Stride.VC, Chalfen Ventures, and SAP.

Sedna in numbers

Our customer base includes some of the biggest names within the maritime and logistics sector, like Norden, Oldendorff, Western Bulk and many more.

From Port Agents, to Vessel Operators, Charterers, Brokers, Freight Forwarders, and IT Managers, thousands of supply chain professionals use Sedna.

With Headquarters in London, UK, offices in Singapore and South Africa, and team members in Canada, Sedna’s regional teams work together to advance our mission.

Leading organisations across the Supply Chain drive efficiencies with Sedna

Executive team

Bill Dobie
Founder & CEO

For over twenty-five years, Bill has brought people and technology together to advance innovation and growth in global trade. Prior to Sedna, he spent several years in shipping as a ship agent, shipbroker, and charterer before founding software companies Navarik and Stage 3 Systems.

Leigh Steed-Middleton
President

Leigh shapes strategic direction and oversees operational execution. Partnering with the CEO and leadership team, he focuses on business growth, operational excellence, and product expansion. Prior to Sedna, Leigh has a successful track record as an entrepreneur and has held a leadership position at The Economist Group.

Robert Scott
CFO

Robert leads Sedna’s global financial functions. He was previously Global VP Finance at impact.com and worked at Deloitte New York. He is a registered Chartered Accountant.

Tom Castley
CSO

Tom leads Sedna’s revenue and growth strategy, bringing over 18 years of sales expertise and a strong track record of building and coaching high-performing, customer-focused teams. Prior to Sedna, he served as VP of Sales at Hook, a B2B SaaS platform, and led EMEA expansion at Outreach. Known for his strategic sales leadership and commitment to customer experience, Tom has also held senior roles at Apptio, Xactly, and Oracle.

James Kellerman
VP of Engineering

James is responsible for the engineering team at Sedna. With over 20+ years experience working in technology and engineering, James has experience as CTO at both Pando and Ieso Digital Health, as well as the VP of engineering at Touch Surgery. At Sedna, James has a genuine passion for solving problems, and strives to deliver stellar products for our customers.

Natasha Middleton
Director of Product

Natasha leads the product organisation at Sedna, including product management and product design. During four years at Sedna, Natasha has worked across all Sedna’s product pillars, bringing deep product and customer knowledge to the team. Now as Director, she oversees product research, strategy, operations and go to market. Natasha has previous experience scaling product teams, joining ClearBank as employee 30, a founding member of the product team and leaving when 300+ employees.

Dominique Sivak
SVP of People

Dominique specialises in building cohesive teams, fostering high-performance cultures and driving business transformation through people-centred leadership. Dominique has 10 years of experience in managing teams, with roles including, Head of People at Kano Computing, and Chief People Officer at Zencargo. Dominique’s wealth of experience within people teams, helps drive Sedna’s ability to motivate employees by a shared vision and empowerment of one collective goal - the transformation of maritime communications.

Cynthia Worley
VP of Strategic Accounts

Cynthia is responsible for Sedna's strategic accounts. She has spent two decades defining, delivering and amplifying disruptive technology across the global commodities supply chain. She has detailed knowledge of digitalisation of trade developed during her tenure with ICE, and helped shape the digital strategy in maritime while at ICE Digital Trade / essDocs, launching the eBill of Lading, eBarge Receipt and eSDS into mainstream use.

Molly Grossman
Global Head of Marketing

Molly is responsible for the full scope of Sedna’s marketing organisation - including demand generation, product marketing, communications, design and the business development team. Molly specialises in crafting high performance teams and provides them with the tools for success that consistently produces a predictable and high-quality pipeline. Before joining Sedna, Molly was Manager of Sales Development at Outreach.

Jacob Koch Blicher
MD EMEA

Jacob is a senior executive leader with over 20 years of expertise in the maritime industry, digital innovation, and organizational transformation. He has held senior executive positions at NORDEN and other top-tier maritime and technology companies. He is driving strategic growth across Europe and the Middle East with a relentless focus on sustainable value creation and global alignment for Sedna. His career spans leadership roles in global shipping, technology development, software, turnaround management, and board roles—where he has consistently led change, united teams, and delivered measurable results.

Dan Jones
Global Head of Sales

Dan is responsible for new business growth and strategic account expansion. He brings over 12 years of experience in enterprise SaaS and digital transformation. Prior to Sedna, Dan held roles at Outreach and Advanced, where he led complex sales cycles, drove large-scale technology adoption, and built customer-centric go-to-market teams. Dan is known for his coaching-first approach to leadership, developing sales teams that are deeply focused on delivering value and long-term success for customers.

May Fell
VP of Customer Operations

May is Sedna’s VP of Customer Success, leading global client strategy and retention. With a focus on delivering measurable value to customers, she blends strategic leadership with deep client empathy. May holds degrees from Princeton and the Wallace Collection and previously held leadership roles at Convelio and Sotheby’s Institute.

Backed by leading tech and business investors