Holmes Heritage Consulting has provided conservation direction for major shipwreck projects spanning five centuries, six oceans, and depths to 4,700 metres.
HMS Victory (1744) — English Channel · Royal Navy · Full project director SS Gairsoppa — Atlantic · World record depth excavation (4,695m) · WWI cargo steamer SS Central America — Atlantic · Gold Rush-era mail steamer SS Republic — Atlantic · Post-Civil War passenger ship SS Mantola (1917) — Atlantic · WWI cargo steamer Uluburun — Turkey · Late Bronze Age c.1300 BC · approx. 17,000 objects Deep-sea Ottoman Trader Site 71Sd — Levant Basin · c.1630 · Published 2020 Tortugas 1622 — Florida Keys · Spanish colonial Vrouw Maria (1771) — Finland · Dutch merchant vessel Kronprins Gustav Adolf (1788) — Finland · Swedish warship Baie des Pirates / Île Sainte-Marie — Madagascar · 17th–18th century pirate wrecks · Field laboratory established Doelse Kogge — Belgium · Medieval cog Viking Age Lake Structure — Estonia · Early medieval SWAP — Scotland · Scottish Wetland Archaeological Programme