• Hi, I'm Corey!


    I have 5+ years of experience in business development, marketing, product, and sales at B2B and B2C seed-stage startups. Expertise with funnel optimization, lead generation, fundraising, virality, email, content, Hubspot, Unbounce, and more.

    I do growth freelancing using my 5+ years of experience in business development, marketing, product, and sales at B2B and B2C seed-stage startups. (More info below and on my Linkedin)

    And I'm building Reciprocity to strengthen online communities.


    I put all the coolest things I find into a weekly newsletter. Sign up below, or view past issues here.

    If anything you see here strikes a chord, let's chat! I'm corey at breiers dot com.

  • Growth Freelancing Expertise

    Seeking product-market fit or struggling to scale with it? I can help.

    Lead Generation

    Funnel Optimization

    Product Marketing


    Email Marketing

    Content Marketing



  • Experience


    Reciprocity helps communities solve members' asks for help using AI keyword matching.


    Community managers tired of noisy Whatsapp/FB/email threads benefit from the stronger engagement and culture which results, with no additional work on their end.

    Now seeking more engaged communities to trial beta app and share feedback!


    I cofounded this synthetic assistant startup that manages freelancers to do your annoying business work. Almost like a concierge Upwork.


    I interviewed 50 self employed entrepreneurs about their daily habits, to see what a successful day lived on one's own terms looks like.


    Read the biggest commonalities I discovered here, or watch a talk I gave on the subject here.


    I project managed this book with my family, to answer the question 'I don't know, what do you want to do?'. It contains hundreds of fun games you can play with just about any group.


    The Wall Street Journal featured my family for putting aside team sports for quality time.

    Moomin Coliving House


    I live in a 12 bedroom house with 14 people, and I wouldn't have it any other way. We named it after the Moomin cartoon because it's blue with a turret, just like their house (right). Communal living is the future!


    I also organized the first San Francisco Co Op Crawl in 2017, which was essentially a bar crawl for co-ops. It's now a regular tradition, and I'm always on the lookout for intentional community best practices.