James M. Buck III is a General Partner at TDH III, a venture capital firm. See sector focus and contact routes.
James M. Buck III is a General Partner at TDH III, a venture capital firm, with 13 years of experience making venture investments after beginning his career at J.P. Morgan & Co. in banking and private placement groups. TDH invests across all stages from seed to pre-IPO and buyouts, targeting sectors including biotechnology, software, medical equipment, semiconductors, and financial services primarily in the United States. The firm’s typical check size and whether Buck leads or follows on investments are not publicly disclosed in available sources. Notable portfolio companies under TDH are not named in the search results, though Buck has served on multiple TDH portfolio company boards. There is no public writing or distinctive point of view attributed to Buck in the provided sources. The available information confirms his role, background, and TDH’s broad investment scope but lacks specific details on check sizes, lead/follow behavior, named portfolio companies, or public commentary.
Every field above is read from the StartupFundraising investor directory — disclosed location, recorded investments and stated focus — and re-checked as filings arrive. Founders pair it with investors in Wayne when building a target list.
Investors like James M. Buck · Full investor directory · Investor access · Company funding database