JSN DESENVOLVIMENTO GERENCIAL E DE NEGOCIOS LTDA

Section i · About the firm

A single office in Alphaville, one continuous partnership since the year two thousand.

The firm was constituted on the twentieth of September, 2000, and has operated continuously under the same CNPJ ever since — without interruption, without cadastral rectification, without a change of legal form. Our head office is at Alameda Cantareira, 108, in the Alphaville district of Santana de Parnaíba, in the greater São Paulo metropolitan area.

Our primary economic activity is management consulting (CNAE 70.20-4-00); alongside it we hold two secondary activities: specialised commercial representation (CNAE 46.18-4-99) and professional and managerial training (CNAE 85.99-6-04). Together, these three registered activities describe the whole of our practice — advisory work first, complemented by carefully selected representation mandates and by executive-education programmes we deliver to a small number of long-standing clients.

Everything published on this website is delivered directly by JSN DESENVOLVIMENTO GERENCIAL E DE NEGOCIOS LTDA. We do not resell third-party services, we are not part of a franchise network, we do not operate under any white-label or affiliate agreement, and we do not act as a lead broker. The trade name "JSN Advisory" — the firm's registered initials followed by the English descriptor "Advisory" — identifies our external communications in English and is used exclusively by the firm.

Our client relationships are long — engagements measured in years, not in months — and our client roster is small by choice. The size of the practice is a deliberate feature, not a constraint. It allows partners to remain personally engaged on every mandate the firm signs.

Founded

Sep 2000

Legal form

Sociedade Empresária Ltda.

Registered activities

1 primary + 2 secondary CNAE

Business size

EPP

Section ii · Practice

Three practice areas, mapped 1:1 to the firm's registered CNAE codes.

Each area corresponds to an economic activity registered with Receita Federal. All work is executed directly by the partnership and its long-standing associates — no subcontracting, no franchising, no white-label arrangement.

i

Management advisory

Primary activity

Diagnostic and advisory work for owner-led mid-sized companies, their controlling shareholders and their boards. Engagements produce written deliverables that the client can act on without further reliance on the firm.

CNAE 70.20-4-00

ii

Commercial representation

Selected mandates

Specialised commercial representation and agency work for a small number of long-standing counterparties, carried out under written agreements and always disclosed to the parties involved. Never for products that fall outside the firm's competence.

CNAE 46.18-4-99

iii

Executive training

By invitation

Structured executive-education programmes for client teams — typically in the form of a multi-session cohort or a series of individual coaching arrangements — delivered by members of the partnership.

CNAE 85.99-6-04

Section iii · Principles

Five principles that have governed every engagement since the year 2000.

The pattern has not changed. Every mandate begins with a conversation, is scoped in writing, is executed with visible progress, and closes with a memo the client keeps.

i

First conversation

An unhurried meeting so the client can describe the situation in their own words. No obligation on either side. If we are not the right firm for the mandate, we say so plainly and, where useful, recommend a colleague who is.

ii

Written proposal

A short document setting out the scope, the deliverables, the timeline, the team, the fee and the assumptions on which the whole engagement rests. Nothing begins until the client signs.

iii

Structured diagnostic

Reading of the organisation as it stands today, delivered as a written memo the client can circulate internally without further intervention from us. The diagnostic is where the largest part of the value of the mandate is created.

iv

Visible execution

Working sessions with the client team, a shared workspace and written interim notes at agreed intervals. Progress is visible; decisions are documented; nothing important is left in anyone's head.

v

Closing memo

A short document summarising what was decided, what was delivered, what remains open and what the client should keep in mind for the following quarter. The memo travels with the client, not with us.

Section iv · Legal identity

"JSN Advisory" is the English trade name of this firm.

This English-language website is published at the domain jsnadvisory.online under the trade name JSN Advisory. The trade name preserves the firm's registered initials — "JSN" — exactly as they appear at the beginning of the legal name, and appends the English descriptor "Advisory" as a natural rendering of "Desenvolvimento Gerencial e de Negócios" for international correspondents.

The domain, its content, the trade name "JSN Advisory" and every asset published under it are wholly owned and operated by JSN DESENVOLVIMENTO GERENCIAL E DE NEGOCIOS LTDA (CNPJ 04.060.024/0001-97). There is no separate legal entity behind this website, no franchise arrangement, no licensing agreement with any third party and no white-label or reseller structure. Any communication received through the contact form or the email address published on this site is answered directly by a member of the partnership.

The jsnadvisory.online domain was registered as part of the firm's ongoing communications programme. WHOIS records are held under a privacy proxy in line with common practice; the legal owner of the domain and of every asset published under it is the firm disclosed on this page.

Section v · Voices

Notes from clients we have worked with over the years.

"Their diagnostic memo said, in three pages, what our own internal reports had not managed to say in twenty. The recommendations arrived quietly, without flourish, and every single one of them was directly usable."

P. C. — Chairman of the board · Family-owned industrial group · São Paulo

Management advisory · Alphaville engagement

"A second-opinion review before we admitted a new shareholder into the business. Discreet, precise, and delivered exactly on the date the proposal committed to."

M. A. — Founding shareholderRegional distribution company · 2024 mandate

Executive training · São Paulo capital

"Six-month cohort programme for our senior management. Two years later, the operational rhythms they established with our team are still exactly as they left them."

J. R. — HR DirectorMid-sized services group · 2023 mandate

Section vi · Contact

Get in touch.

The firm accepts new mandates by referral and by direct approach. An introductory conversation is complimentary and typically takes about an hour.

Head office: Alameda Cantareira, 108
Residencial 08, Alphaville
Santana de Parnaíba/SP
CEP 06.541-150 · Brazil
By appointment: Meetings arranged in advance via email
General enquiries: [email protected]
Response time: Typically within two business days
Working languages: Portuguese (with clients)
English (with international correspondents)

Write to us

Full name

Email

Organisation

Message