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T
Tideline
Ocean intelligence · Live

The platform of record for ocean governance

A destination for ocean governance professionals. Track entities, search the document library, build research projects, and receive a personalised brief before 7am.

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No card required·7 days full access·47 founding spots left
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Live tracker
ISA Deep-Sea Mining
0.70x
7.2
Elevated · Active conditions
+0.4 vs last week
Volume
8.2
Recency
9.0
Decision
7.5
Risk
×0.70
DisclosureISA commercial licensing runs structurally lower in this index. Read alongside ISA portal.
The feed

Every signal, one inbox

Continuous coverage from over 100 independent news outlets and primary source publishers. Tagged to entities and trackers, summarised in the platform, with the source one click away.

See the feed →
Live feed
12 min ago
ISAPacific Minerals2h
ISA council defers vote on mining code amid scientific objections
International Seabed Authority · Press release
BBNJUN Treaty Collection4h
BBNJ ratification reaches 34 parties as Pacific bloc confirms support
UN Treaty Collection · Filing
IMO MEPCACME Shipping6h
MEPC 83 opens with revised CII corridor proposals on the table
IMO Documents · Working paper
The pulse

Ten domains, scored weekly

Recognise when something might be coming so you can prepare. A regulatory activity index calibrated against the historical record, with the methodology published openly.

Read the methodology →
Updated Monday
BBNJ High Seas Treaty
0.70x
6.4
Watch
Conditions developing
+0.6 vs last week
Volume
7.4
Recency
8.0
Decision
5.5
Risk
×0.70
The workspace

Choose what to follow. The platform watches.

Pick the entities, regulators, or companies you care about. Whenever they appear in the press, in a document, or in a regulatory filing, that information attaches itself to your active projects automatically.

Tour the workspace →
Regulatory watch
BBNJ Ratification Tracker
12 · 3 new
Attached
Primary · Library
PIF Communiqué on BBNJ ratification commitments
PIF Secretariat · 12 Mar 2026
Primary · Library
UN Treaty Collection: BBNJ signatories deposited
UN Treaty Collection · 18 Apr
Secondary · Feed
BBNJ ratification reaches 34 parties
Reuters · 4h ago
Q3 2026
Ask Tideline
What did Pacific bloc states commit to at PrepCom III?
The Pacific Islands Forum bloc collectively committed to depositing instruments before the second BBNJ COP¹. Fiji, Palau, and the Marshall Islands have since deposited².
Less than £25 a week.
Less than a single billable hour.
7-day free trial · No card required
Try it free for 7 days. No card required.
Founding member pricing locked at £39/month for life. 47 spots left.

Not Google Alerts.

Volume is not signal. Tideline scores activity, attributes sources, tracks how stories evolve.

Not a chatbot.

Curated by the platform's tracking systems and verified before it lands in your inbox.

Not an academic database.

For working professionals who need the answer in five minutes, not the literature review in five hours.

Built for

Five sectors, one platform

Marine lawyers
Track regulatory changes across IMO, ISA, FAO, OSPAR.
Cited regulatory briefs in minutes.
ESG and blue finance
Track TNFD, BBNJ, blue bonds, ISA exposure.
Portfolio intelligence with citable sources.
Shipping compliance
Track IMO MEPC, MARPOL, EU MRV, port state.
Compliance window awareness early.
Conservation NGOs
Track 30x30, IUU, MPAs, consultations.
Replace six tabs and Google Alerts.
Climate finance
Track ISA, debt-for-nature, sustainable finance.
Emerging market signal early.
The directory

Every entity, in one place

928 entities across companies, regulators, contractors, and financial institutions. Star the ones that matter. Don't see an entity you're looking for? Email us and we'll add it.

⌕ Search 928 entities…
Pacific Minerals Ltd
Contractor
ISAActive
ACME Shipping Ltd
Operator
MEPC 83
Intl Seabed Authority
Regulator
2 stories
BlackRock Blue Bond
Investor
TNFD
The brief

Personalised, before 7am

Every weekday morning, only the entities and domains you track. Sourced from the feed, scored against the trackers, quality-checked before it lands.

Tideline · 6:47
Friday · 4 entities moved overnight
Friday 25 April
Good morning.
All 4 of your tracked entities moved yesterday.
The watch
ISA defers vote on mining code
Council postponed following ITLOS objections.
Your entities
ACME Shipping
MEPC 83 papers reference fleet emissions.
Pacific Minerals
↑ 7.2
ISA Pulse moved 6.4 → 7.2 overnight.
Built by
FOUNDER

One founder. No shortcuts.

Tideline is built by Luke McMillan, a sole founder with a decade in ocean policy. Every line of code, every scraper, every editorial decision passes through one set of hands. The methodology is published openly because the person responsible for it answers for it. Tideline was built from interviews with 32 ocean governance professionals across legal, ESG, shipping compliance, and conservation — before a single line of code was written.

Read the longer story →
Pricing

One platform. No tiers.

47 of 50 left
Founding member
Locked for life
£39
per month, forever
  • Direct line to the founder. Shape what gets built next.
  • Full platform access
  • Personalised brief
  • All trackers
  • Workspace and library
  • All future features included
Individual
7-day free trial
£99
per month
  • Full platform access
  • Personalised brief
  • All trackers
  • Workspace and library
  • Directory of 928 entities
Team
10 seats
£699
per month
  • Everything in Individual
  • 10 seats
  • Shared library and projects
  • Priority support

Start the trial.

Seven days. Full platform access. No card required.

Cancel any time. Your data stays yours.
47 founding member spots remaining · £39/month, locked for life · Claim yours
T
Tideline
Ocean intelligence · Live

The platform of record for ocean governance.

A destination for ocean governance professionals. Track entities, search the document library, build research projects, and receive a personalised brief before 7am.

See the platform →
No card required·7 days full access·47 founding spots left
Live tracker
ISA Deep-Sea Mining
Multilateral · 0.70x
7.2
Elevated
Active conditions · prepare
+0.4 vs last week
Volume 35%
8.2
Recency 30%
9.0
Decision 20%
7.5
Risk 15%
×0.70
DisclosureISA commercial licensing runs structurally lower in this index. Read alongside ISA portal.
The feed

Every signal, one inbox.

Continuous coverage from over 100 independent news outlets and primary source publishers. Tagged to entities and trackers, summarised in the platform, with the source one click away.

See the feed
Live feed
Updated 12 min ago
ISAPacific Minerals2h ago
ISA council defers vote on mining code amid scientific objections
International Seabed Authority · Press release
BBNJUN Treaty Collection4h ago
BBNJ ratification reaches 34 parties as Pacific bloc confirms support
UN Treaty Collection · Filing
IMO MEPCACME Shipping6h ago
MEPC 83 opens with revised CII corridor proposals on the table
IMO Documents · Working paper
Updated Monday
BBNJ High Seas Treaty
Multilateral \u00B7 0.70x
6.4
Watch
Conditions developing
+0.6 vs last week
Volume
7.4
Recency
8.0
Decision
5.5
Risk
×0.70
The pulse

Ten domains, scored weekly.

Recognise when something might be coming so you can prepare. A regulatory activity index calibrated against the historical record, with the methodology published openly.

Read the methodology
The workspace

Choose what to follow. The platform watches.

Pick the entities, regulators, or companies you care about. Whenever they appear in the press, in a document, or in a regulatory filing, that information attaches itself to your active projects automatically.

Tour the workspace
Regulatory watch
BBNJ Ratification Tracker
12 items · 3 new
Attached
Primary · Library
PIF Communiqué on BBNJ ratification commitments
PIF Secretariat · 12 Mar 2026
Primary · Library
UN Treaty Collection: BBNJ signatories deposited
UN Treaty Collection · 18 Apr
Secondary · Feed
BBNJ ratification reaches 34 parties
Reuters · 4h ago
Q3 2026
Ask Tideline
What did Pacific bloc states commit to at PrepCom III?
The Pacific Islands Forum bloc collectively committed to depositing instruments before the second BBNJ COP¹. Fiji, Palau, and the Marshall Islands have since deposited². The bloc represents 8 of 34 ratifications.

Two ways to spend a week.

The same week, with and without the platform.

Without Tideline
Mon 6:47
Coffee. Six tabs from yesterday. Skim three newsletters.
Mon 8:30
Partner asks about the ISA decision. “Let me get back to you on that.”
Wed 11:00
Building the BBNJ briefing note. Open four tabs, copy-paste, hope it's current.
Thu 16:30
Client asks: “what’s Pacific Minerals doing?” You’ll find out and circle back.
Fri 09:00
Pulse on ISA crossed into elevated. You won't hear about it until next week.
With Tideline
Mon 6:47
Brief lands. Four entities moved overnight. Two flagged.
Mon 8:30
Partner asks about the ISA decision. “Council deferred the vote. Here’s the citation.”
Wed 11:00
BBNJ project already has 12 documents attached overnight. Write, don't hunt.
Thu 16:30
Client asks: “what’s Pacific Minerals doing?” You already know — three signal pills.
Fri 09:00
Pulse on ISA crossed into elevated. You'll see it Monday morning.
Less than £25 a week.
Less than a single billable hour.
7-day free trial · No card required · 47 founding spots remaining
Try it free for 7 days. No card required.
Founding member pricing locked at £39/month for life. 47 spots left.
The directory

Every entity, in one place.

928 entities across companies, regulators, contractors, and financial institutions. Star the ones that matter. Don't see an entity you're looking for? Email us and we'll add it.

⌕ Search 928 entities…
Pacific Minerals Ltd
Contractor
ISAActive
ACME Shipping Ltd
Operator
MEPC 83
Intl Seabed Authority
Regulator
2 stories
BlackRock Blue Bond
Investor
TNFD
The brief

Personalised, before 7am.

Every weekday morning, only the entities and domains you track. Sourced from the feed, scored against the trackers, quality-checked before it lands.

Tideline · 6:47
Friday · 4 entities moved overnight
Friday 25 April
Good morning.
All 4 of your tracked entities moved yesterday.
The watch
ISA defers vote on mining code
Council postponed following ITLOS objections.
Your entities
ACME Shipping
MEPC 83 papers reference fleet emissions.
Pacific Minerals
↑ 7.2
ISA Pulse moved 6.4 → 7.2 overnight.

Not Google Alerts.

Volume is not signal. Tideline scores activity, attributes sources, tracks how stories evolve.

Not a chatbot.

Curated by the platform’s tracking systems and verified before it lands in your inbox.

Not an academic database.

For working professionals who need the answer in five minutes, not the literature review in five hours.

Built for

Five sectors, one platform.

ESG and blue finance
Track TNFD, BBNJ, blue bonds, ISA exposure.
Portfolio intelligence with citable sources.
Marine lawyers
Track regulatory changes across IMO, ISA, FAO, OSPAR.
Cited regulatory briefs in minutes.
Shipping compliance
Track IMO MEPC, MARPOL, EU MRV, port state.
Compliance window awareness early.
Conservation NGOs
Track 30x30, IUU, MPAs, consultations.
Replace six tabs and Google Alerts.
Climate finance
Track ISA, debt-for-nature, sustainable finance.
Emerging market signal early.
Pricing

One platform. No tiers.

47 of 50 left
Founding member
Locked for life
£39
per month, forever
  • Direct line to the founder. Shape what gets built next.
  • Full platform access
  • Personalised brief
  • All trackers
  • Workspace and library
  • All future features included
No card required
Individual
£99
per month
  • Full platform access
  • Personalised brief
  • All trackers
  • Workspace and library
  • Directory of 928 entities
No card required
Team
£699
per month · 10 seats
  • All Individual features
  • Shared workspace
  • Team admin
  • Onboarding session
  • Priority support
We'll set up your seats
FOUNDER
Built by

One founder. No shortcuts.

Tideline is built by Luke McMillan, a sole founder with a decade in ocean policy. Every line of code, every scraper, every editorial decision passes through one set of hands. The methodology is published openly because the person responsible for it answers for it.

Read the longer story

Start the trial.

Seven days. Full platform access. No card required.

Cancel any time. Your data stays yours.