Steve Singleton
Managing Director
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- Full Name
- Steve (Stephen) Singleton
- Title
- Managing Director & Co-Founder
- Firm
- Mountain Group Partners (also referenced as Mountain Group Capital LLC)
- Firm Type
- Venture Capital / Private Equity (family-office roots); often categorized as an angel/early-stage investor
- Investment Stage
- Seed, Series A, and Series B
- Check Size
- $100K – $5.0M (sweet spot ~$1.5M)
- Target Company Profile
- Early-stage, transformational companies the firm can actively shape and guide from their earliest stages
- Sector Focus
- Life sciences / biotech, healthcare, disruptive technology (including diagnostics, animal health, clean energy, and legal tech)
- Geographic Focus
- United States (Southeast / Nashville anchored, invests nationally)
- Location
- Nashville, Tennessee (3835 Cleghorn Ave, Suite 300, Nashville, TN 37215)
Background
Steve Singleton is a Managing Director and co-founder of Mountain Group Partners (MGP), a Nashville-based venture capital and private-equity firm founded in 2002 that invests in and actively guides early-stage companies in the life sciences and disruptive-technology sectors. He has held his Managing Director role at the firm since roughly 2002, making him part of its founding leadership alongside partners including Joe Cook, Jr., Joe Cook, III, and Byron Smith.
Before entering venture investing, Singleton practiced law. From 1998 to 2002 he was an attorney at Trenam Law, a full-service Florida firm, where his work spanned areas such as bankruptcy, healthcare, tax, personal injury, and real estate. That legal and transactional grounding informs MGP's hands-on, structured approach to building companies.
His education includes a law degree (J.D.) from Stetson University College of Law, along with undergraduate study at the University of Central Arkansas and the University of South Florida.
Beyond MGP, Singleton serves as President of the Charis Foundation, a Nashville-based philanthropic organization, reflecting an active civic and faith-based community involvement in the Nashville area.
Investment Thesis & Focus
- Invests at Seed, Series A, and Series B stages, with checks of $100K–$5.0M and a sweet spot around $1.5M.
- Concentrates on life sciences / biotech and disruptive technology, deliberately targeting "unique areas within these industries often underserved by the venture investment community."
- MGP describes itself as an active, patient-capital investor with family-office roots, priding itself on the ability to "shape companies from their earliest stages" rather than taking a passive minority position.
- Personal Signal profile lists focus areas of BioTech and LegalTech across seed through Series B.
- Fit signals: transformational businesses in healthcare and tech, often in niches (diagnostics, animal/ag health, clean energy) where the firm can add operational guidance and stay involved through later rounds (including pre-IPO).
Notable Investments
- Castle Biosciences — Skin-cancer/dermatology molecular diagnostics company; MGP portfolio company that went public (IPO, 2019).
- AN2 Therapeutics — Clinical-stage biopharma (infectious disease); publicly traded MGP portfolio company.
- PhaseBio Pharmaceuticals — Biopharma; announced 2020 co-development collaboration with SFJ Pharmaceuticals for PB2452 (bentracimab) and a 2021 European licensing deal with Alfasigma.
- NeuroTronik — Cardiac neuromodulation device company; raised a $23.1M Series B (2017).
- Boragen — AgTech company developing novel boron-based fungicides; launched via AgTech Accelerator with a $10M Series A (2018).
- Silicon Ranch — Utility-scale solar developer (Nashville-based); grew into a major clean-energy platform (Shell acquired a majority stake in 2018).
- TARGAN — Animal-health / poultry-technology company.
- AngelEye Health — NICU/patient-family engagement healthcare technology company.
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