Third Sphere’s Substack alternatives: newsletters like it

SubstackSeveral times a week · last post 8 days ago

From recent posts: startupsdecoded publishes interview-style essays on startup fundraising and job-search strategy, including a five-stage playbook for raising capital from existing networks and a structured pipeline system for job…

Likely audience: Founders seeking seed capital

2 shared topics

SubstackEvery two weeks · last post 21 days ago

Practical go-to-market guidance and playbooks for early-stage founders building their commercial strategies and teams.

Likely audience: Founders of pre-seed B2B software and AI companies

2 shared topics

SubstackMonthly or less · last post Sep 11, 2026

The bridge between your goals and where you are now is the mindset. Weekly ideas and insights.

Likely audience: Founders

2 shared topics

Substacklast post May 20, 2026

From recent posts: Spotlight by Xartup publishes in-depth articles on startup strategy, product management, and fundraising for founders and operators. The content focuses on practical analysis of business metrics, competitive dynamics…

Likely audience: startup founders

1 shared topic

SubstackSeveral times a week · last post yesterday

From recent posts: The VC Corner publishes a mix of premium investor databases, startup funding analyses, and weekly tech recaps covering AI, fintech, and venture capital. It targets founders and investors seeking curated deal data, pitch…

Likely audience: Startup founders

1 shared topic

SubstackEvery two weeks · last post 2 days ago

1ª e maior plataforma focada em diversidade etária e oportunidades para os 50+ do Brasil

Likely audience: Profissionais com mais de 45 anos

1 shared topic

SubstackSeveral times a week · last post yesterday

From recent posts: Product Market Fit publishes weekly business articles covering AI strategy, startup operations, and venture capital trends for founders and investors. The publication mixes case studies on successful launches and…

Likely audience: Venture capitalists

1 shared topic

SubstackMonthly or less · last post 16 days ago

Weekly writing about how technology and people intersect

Likely audience: Product managers

1 shared topic

SubstackWeekly · last post today

From recent posts: Founder Fridays is a weekly business newsletter for founders and early-stage entrepreneurs, delivering short-form guides on software delivery, fundraising, legal fees, AI strategy, and startup operations. The…

Likely audience: founders

1 shared topic

SubstackWeekly · last post 7 days ago

The Definitive Journal For Veteran Entrepreneurship.

Likely audience: entrepreneurs

1 shared topic

SubstackMonthly or less · last post Sep 8, 2026

Foundersuite's Substack - All about Founders

Likely audience: Venture Capitalists

1 shared topic

SubstackWeekly · last post 15 days ago

From recent posts: Not Another CEO publishes interviews and essays on founder psychology, executive hiring, and leadership strategy for entrepreneurs and executives. The publication mixes podcast episodes with articles covering topics…

Likely audience: founders

1 shared topic

SubstackWeekly · last post 16 days ago

From recent posts: The Rare Mind publishes weekly essays and member recordings analyzing business strategy, marketing positioning, and the impact of AI on the attention economy. It targets consultants, solopreneurs, and business leaders…

Likely audience: founders

1 shared topic

SubstackEvery two weeks · last post 25 days ago

Insights semanais que irão acelerar sua progressão na área de dados. De graça e sem spam.

Likely audience: Data Analysts

1 shared topic

SubstackWeekly · last post 15 days ago

Desvende o verdadeiro poder da Inteligência Artificial. Receba insights práticos, estratégias de ponta e cases reais para aplicar IA no seu negócio ou carreira. Não fique para trás na revolução tecnológica. Cadastre-se…

Likely audience: business leaders evaluating AI adoption

1 shared topic

SubstackEvery two weeks · last post 17 days ago

As the co-founder and first CEO of Netflix, I'll write a fair amount about the place, but I'll also share my thoughts on entrepreneurship, work-life balance, kids and whatever stupid things happen to pop into my head.

Likely audience: venture capitalists

1 shared topic

SubstackSeveral times a week · last post 11 days ago

From recent posts: Tepper Talks publishes weekly job listings for the film and TV industry alongside monthly script read club events for writers and industry professionals. The publication mixes career resources with community engagement…

Likely audience: startup founders

1 shared topic

SubstackWeekly · last post yesterday

A newsletter to stay up to date on all things Calgary Tech

Likely audience: AgTech founders and investors

1 shared topic

SubstackEvery two weeks · last post 23 days ago

Santa Cruz Works connects businesses and entrepreneurs with local tech resources, community, and opportunities.

Likely audience: Biotech researchers

1 shared topic

SubstackSeveral times a week · last post 12 days ago

My personal Substack

Likely audience: Tech enthusiasts

1 shared topic

SubstackEvery two weeks · last post 11 days ago

I write on taste-led growth and monetization, answers which engine is really producing your growth, and where the revenue is won.

Likely audience: Growth Marketers

1 shared topic

SubstackMonthly or less · last post 12 days ago

Leadership and operating philosophy for investors and investor-backed executives. Written by a private equity operating partner.

Likely audience: Sales managers

1 shared topic

SubstackWeekly · last post 11 days ago

I am a growth strategist with 25+ years in tech, startups, and e-commerce with expertise of product and marketing. Launched and scaled businesses, built Europe's largest incubator. Let’s connect to grow your business!

Likely audience: product managers

1 shared topic

SubstackMonthly or less · last post Aug 18, 2026

Unpacking the narrative powering presentations, pitches and speeches

Likely audience: founders

1 shared topic