Nathan McDonald
Managing Partner and CEO @ Keiretsu Capital
Seattle, United States
Nathan McDonald is a funding round investor at Keiretsu Capital in Seattle focused on Health Care and Biotechnology. Nathan brings a unique entrepreneurial business and organizational development background developed during years of hands-on, active leadership and operational experience. As one of the Northwest’s leading organizers of entrepreneurial and investor relations-focused media and funding events, he has facilitated scores of engagements and successfullypromoted hundreds of privately financed high-growth companies.In June 2014, Nathan became CEO of Keiretsu Capital with the mission of fostering closer ties between Keiretsu Forum angels, the institutional investor community and Keiretsu Forum portfolio companies. Keiretsu Capital provides access to proprietary deal flow by investing alongside the angels, providing additional capital to complete rounds and acting to source follow on capital where appropriate.Nathan co-founded and currently serves as Chairman of the Northwest Region of the Keiretsu Forum global angel investment group. He wrote the business plan and designed the organizational structure, which led to the initial license agreement with global Keiretsu Forum. He recruited the team, implemented policies and procedures, designed, and coordinated multi-faceted events. As part of his overall regional growth strategy, he created and implemented controlled expansion activities in Seattle, Bellevue, Boise, Portland, Spokane, Victoria and Vancouver, B.C. Nathan’s leadership and personal networking skills combined to quickly build the region into the fastest growing angel investment group in the nation, adding over 650 investor members and facilitating over $164 million in funding for over 240 companies.In 2004, Nathan became Managing Director of Venture Velocity, a business growth consulting organization. He recruited a talent pool of executive-level consultants from among the most successful and fastest growing companies in the region. Nathan has been a moving force in building and shaping investor networks for two emerging fund managers including The University Funds and Pacific West Land.Nathan has dedicated much of his career to stimulating growth-stage capital investment including as lead organizer for the Northwest’s most successful venture funding conference, raising over $30 million for 15 growth companies. As Co-founder and Managing Director of the Investment Forum, he produced the highest quality educational programs, social events, and investment forums in the region in collaboration with more than thirty-five industry groups and hundreds of different sponsors. Nathan co-founded an industry leading showcase event and media piece, which attracted over 500 of the region’s most influential investors and CEO’s to recognize and celebrate their accomplishments.Nathan is a graduate of University of Washington Michael G. Foster Business School with a Bachelor of Arts degree in Business Administration & Finance with an emphasis in entrepreneurial leadership and venture finance. He has been a consistent supporter and volunteer for his alma mater, serving as a sponsor and judge for the UW Center for Innovation and Entrepreneurship Business Plan Competition for many years. Nathan and his wife Brianna live in the Wedgwood neighborhood in Seattle with their three young children Evan and Wyatt and Ana Leigh.
- Total investments:
- 95
- Last investment:
- Lead investor:
- 4%
Last updated:
For AI agents: llms.txt
Industries Nathan McDonald invests in
Stages Nathan McDonald invests in
Countries Nathan McDonald invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Series A
- $400k–$3.5M
- Venture - Series Unknown
- $575k–$1.4M
Investment Focus
Industry
- Health Care 11 (12%)
- Biotechnology 9 (9%)
- Medical 8 (8%)
- Software 6 (6%)
- Information Technology 6 (6%)
Stage
- Funding Round 20 (21%)
- Series A 19 (20%)
- Venture - Series Unknown 11 (12%)
- Seed 10 (11%)
- Convertible Note 8 (8%)
Country
- United States 45 (47%)
- Canada 1 (1%)
- Turkey 1 (1%)
- Australia 1 (1%)
- United Kingdom 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Alyte is a social fitness app where people can attend pilates, yoga, and stretch classes in a range of lengths, levels, and intensities. Alyte transforms the way individuals connect and share healthy experiences together. Alyte enables people to hang out while working out. | $3M / Pre-Seed / Apr 11, 2022 | ||
| LumiThera is a medical device company focused on LED and laser treatments for acute and chronic ocular disease. The company is developing solutions to prevent vision loss and blindness, improve visual function, and stop or slow the progression of blinding diseases of the eye. They delivering photobiomodulation (PBM) treatment for ocular disordersand diseases.LumiThera also focused on treating patients affected by dry age-related macular degeneration. The company’s expertise is in the application of photobiomodulation (PBM), using non-invasive light-emitting diodes (LED) for acute and chronic ocular diseases and disorders.The company was founded in 2013 and is headquartered in Poulsbo, Washington, United States. | $14M / Series C / Jul 08, 2020 | ||
| Embera NeuroTherapeutics is a development stage pharmaceutical company focused on developing treatments for smoking cessation and other addictions, for which there are a limited range of effective drug therapies or have no approved treatments. Embera is developing a novel addiction treatment (EMB-001) that targets specific and complementary brainfunctions that drive the craving and relapse associated with these disorders, an approach based on breakthrough discoveries of the scientific founder. | $4.4M / Series B / Dec 19, 2019 | ||
| Textile-Based Delivery administers essential oils, vitamins, and cosmeceuticals. The company develops five patent-pending platform technologies that enable the secure and controlled delivery of “Active” ingredients to a target location over a long period of time, and through hundreds of laundering cycles. | $575.1K / Venture - Series Unknown / Dec 20, 2017 | ||
| Blaze Bioscience is a Seattle-based, privately-held biotechnology company dedicated to developing products that assist surgeons in their quest to improve the lives of cancer patients. Tumor Paint provides real-time, high-resolution intraoperative visualization of cancer cells, enabling better detection and more complete and precise surgicalresection of cancer. The first Tumor Paint product candidate, which is a combination of a targeting peptide and a fluorescent beacon, is under development for multiple solid tumors. Blaze Bioscience was founded in 2010. | $16.1M / Series B / Oct 12, 2017 | ||
| Zive is an enterprise software company focused on creating productivity applications for the business and professional user. Its first product, Kiwi for Gmail, transforms Google’s Workspace office suite into a suite of desktop applications with enhanced business integration and productivity features. Kiwi has broad adoption by users in 600+ of thelargest enterprise and SMB companies using Google Workspace. In addition to Kiwi for Gmail, Zive is continuing to develop new productivity applications for enterprise users. | $2.2M / Seed / May 10, 2017 | ||
| Voyager Pacific provides investors with the opportunity to obtain significantly higher returns while investing in relatively low-risk Tax Lien Certificates. Leveraging its nearly two decades of experience in the area of vacant land, Voyager Pacific manages niche investment funds with a focus on vacant land Tax Lien Certificates. | Venture - Series Unknown / Feb 16, 2017 | ||
| VRTV content can be played back anywhere – on all VR platforms as well as mobile, tablet, and the web. They don’t limit where you can watch your favorite VR shows. | $1.5M / Convertible Note / Feb 16, 2017 | ||
| Founded in 2008, with headquarters in Ottawa, Ontario, Canada, The Hotel Communication Network has built on years of research and development to provide an innovative high-value guest amenity that keeps each guest connected to their hotel, city and each other. | $2M / Angel / Feb 15, 2017 | ||
| Acceleration Systems is led by a core group of business, technology, and marketing professionals. They have extensive experience ranging from startups to Fortune 1000 companies with expertise in Internet technology, software development, and channel partner cultivation.Acceleration Systems is made up of a collection of some of the coolesttalent based around the United States – and soon to be world (Muwhahahaha… ::rubbing hands together in an evil fashion::) – that are passionate about producing products and solutions to address the worldwide bandwidth problem. We are currently searching for a private island (preferably one with an active volcano) where we can build our new world headquarters. Let us know if you have any ideas. | $1.4M / Venture - Series Unknown / Feb 15, 2017 | ||
| See all 95 investments → | |||
Co-Investors
About Keiretsu Capital
Keiretsu Capital provides access to proprietary deal flow to its investors. Keiretsu Capital works to increase the value of investments undertaken by Keiretsu Forum members by assisting in the successful presentation of the portfolio companies to investors including syndicate partners, venture capitalists, corporate investors, and the publicmarkets.It aims to provide significant capital appreciation through investment in high quality emerging companies that have been funded by the world’s largest angel investor network, Keiretsu Forum, as well as other top tier angel groups.
Keiretsu Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Kevin Sterling
Keiretsu Capital Senior Advisor Network
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Mary Jo Potter
General Partner
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Matthew Le Merle
Managing Partner & Co-founder
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Nathan McDonald
Managing Partner and CEO
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FAQ
What does Nathan McDonald invest in?
Nathan McDonald invests primarily in Health Care, Biotechnology and Medical startups, most often at Funding Round and Series A stage. Most of the 95 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Nathan McDonald's check size?
Nathan McDonald typically joins rounds of $400k–$3.5M at Series A and $575k–$1.4M at Venture - Series Unknown. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Nathan McDonald participates in.
How do I contact Nathan McDonald?
Public channels for Nathan McDonald include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Nathan McDonald last invest?
The most recent investment recorded for Nathan McDonald closed in Apr 2022. Shizune tracks 95 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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