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Top Series A Blockchain companies

Companies building L1s, L2s, wallets, infra, and apps on public blockchains. Filtered to companies whose latest disclosed round is Series A.

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Ranked by current headcount across Series A Blockchain companies. Refreshed daily.

  1. 1
    Reliance Nippon Life Insurance· Mumbai, Maharashtra, India

    IndusInd Nippon Life Insurance (formerly Reliance Nippon Life Insurance)A joint venture of IndusInd International Holdings & Nippon Life Insurance.We cater to five life insurance segments:🧿Protection plans👶Child education plans👵🏻Retirement plans💰Savings & Investment plans🤍Health plans

    • Series A
    • 13.7k employees
    • Founded 2000
  2. 2
    Horizon Blue Cross Blue Shield of New Jersey· Newark, New Jersey, United States

    Horizon Blue Cross Blue Shield of New Jersey- the state’s largest and oldest health insurer - is a subsidiary of Horizon Mutual Holdings, Inc., a not-for-profit mutual holding company. Together with its affiliates, Horizon provides a wide array of medical, dental, vision and prescription insurance products and services. As New Jersey’ health solutions leader, Horizon is transforming healthcare by working with doctors and hospitals to deliver innovative, patient-centered programs that improve quality and lower costs. It is headquartered in Newark, NJ with offices in Wall and Hopewell, NJ. Horizon serves 3.7 million members including more than 1 million who rely on Medicaid for their health coverage.

    • Series A
    • 5.2k employees
    • Founded 1932
  3. 3
    Starr· New York, New York, United States

    With 100+ years of experience across leading industries,We apply an innovation mindset, agile approach,And a global team with local expertise wherever you operate.We help protect you across your global supply chain,Futureproof for growth and respond swiftly in a crisis—Meeting complexity with creativity to move your business ahead.We believe your ambition shouldn’t have limits.Starr helps you unlock what's possible.

    • Series A
    • 4.8k employees
    • Founded 1919
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  5. 4
    Grupo HDI· São Paulo, São Paulo, Brazil

    Com mais de 6 milhões de clientes e uma equipe de quase 5 mil colaboradores empenhados em alavancar a nossa atuação, o Grupo HDI está construindo a melhor seguradora do Brasil para clientes, corretores e parceiros, oferecendo um dos portfólios de produtos e serviços mais completos do país, adequado para qualquer público, necessidade ou ocasião.Nosso objetivo é proteger pessoas e negócios, oferecendo jornadas de excelência para os clientes e expandindo as oportunidades para os corretores e outros parceiros em todo o Brasil, como dealers, cooperativas, bancos, entre outros. Temos orgulho em dizer que nossos seguros combinam excelência, entregas justas e preços acessíveis, com tecnologia e agilidade. Aqui, nós nos importamos pessoalmente.Pertencemos à respeitada empresa alemã Talanx, um dos maiores grupos seguradores do mundo, que recentemente investiu mais de US$ 1 bilhão em aquisições no País. A companhia tem a América Latina como alvo estratégico e o Brasil tem papel de grande destaque nesse cenário – sendo, inclusive, a maior operação da Talanx fora da Alemanha. Hoje, o Grupo é formado pelas marcas de seguros Yelum, HDI e Aliro Seguro além da empresa de assistência 24 horas Fácil Assist e da Agrega, focada no atendimento ao corretor.

    • Series A
    • 4.5k employees
    • Founded 1903
  6. 5
    HealthPlanOne· Shelton, Connecticut, United States

    HealthPlanOne is the friendliest company that helps millions make healthcare choices. We’re committed to making the learning and shopping for Medicare transparent and simpler, to support better health and greater peace of mind. Since 2006, HealthPlanOne’s highly experienced agents, uniquely personal service, diverse solutions, and proprietary analytics have made the company one of the highest performing lead generation, member acquisition, and retention teams in the industry.

    • Series A
    • 3.9k employees
    • Founded 2006
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Find engineers and founders at Series A Blockchain companies

Series A Blockchain companies are some of the most active hirers in the market. The list above ranks the largest Blockchain companies whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 1,755 matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Blockchain share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Blockchain talent is concentrating right now.

Refolk converts this list into a search. Ask for “Series A Blockchain founders hiring senior engineers” or “design leads at Series A Blockchain companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Blockchain companies whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 16:02:01 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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